SynGap Missense Server

Table of SynGAP1 Isoform α2 (UniProt Q96PV0-1) Missense Variants.

c.dna Variant SGM Consensus Domain ClinVar gnomAD ESM1b AlphaMissense REVEL FoldX Rosetta Foldetta PremPS PROVEAN PolyPhen-2 HumDiv PolyPhen-2 HumVar FATHMM SIFT PAM Physical SASA Normalized B-factor backbone Normalized B-factor sidechain SynGAP Structural Annotation DOI
Clinical Status Review Subm. ID Allele count Allele freq. LLR score Prediction Pathogenicity Class Optimized Score Prediction Average ΔΔG Prediction StdDev ΔΔG Prediction ΔΔG Prediction ΔΔG Prediction Score Prediction pph2_prob Prediction pph2_prob Prediction Nervous System Score Prediction Prediction Status Conservation Sequences PAM250 PAM120 Hydropathy Δ MW Δ Average Δ Δ StdDev Δ StdDev Secondary Tertiary bonds Inside out GAP-Ras interface At membrane No effect MD Alert Verdict Description
c.1714T>C
W572R
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant W572R is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity all converge on a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all indicate pathogenicity, and the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic.” No tool in the dataset predicts a benign outcome. High‑accuracy methods reinforce this view: AlphaMissense‑Optimized is pathogenic, the SGM‑Consensus is likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. Based on the unanimous computational evidence, the variant is most likely pathogenic, which is consistent with its ClinVar “Uncertain” classification rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPNot provided1-17.511Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.894Likely Pathogenic4.84Destabilizing0.16.19Destabilizing5.52Destabilizing1.79Destabilizing-12.81Deleterious-1.25Pathogenic0.00Affected3.37352-3-3.6-30.03312.6-37.60.00.0-1.00.0XXPotentially PathogenicThe indole ring of Trp572, located in an α-helix (res. Arg563-Glu578), lies in a hydrophobic inter-helix space, where it makes extensive hydrophobic interactions with nearby residues such as Met470, Phe569, Leu588, and Ile589. The guanidinium group of Arg572 is similarly sized to the tryptophan it replaced; however, it is also positively charged. In the variant simulations, Arg572 forms hydrogen bonds with other residues in the inter-helix space, such as Ser592 and the backbone carbonyl atom of Leu465. Additionally, Arg572 hydrophobically packs its carbon chain with surrounding residues such as Phe569 and Ile589.However, the introduced residue arginine is too hydrophilic and charged for the hydrophobic space, disrupting the hydrophobic packing of the inter-helix space. Indeed, in the second simulation, Arg572 successfully escapes the hydrophobic niche completely, causing the whole protein to partially unfold.Overall, the residue swap is highly likely to cause critical protein folding problems, as evidenced by the effects seen in the variant simulations.
c.1205T>G
L402R
2D
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AIThe SynGAP1 missense variant L402R is listed in ClinVar as Pathogenic (ClinVar ID 559657.0) and is not reported in gnomAD. Prediction tools that agree on a benign effect include only FATHMM; all other evaluated algorithms (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized) predict a pathogenic impact. High‑accuracy methods give the following results: AlphaMissense‑Optimized predicts Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts Pathogenic. Based on the overwhelming agreement among pathogenic predictions and the concordance with ClinVar, the variant is most likely pathogenic, and this assessment does not contradict the ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Likely Pathogenic1-13.800Likely Pathogenic0.997Likely PathogenicLikely Pathogenic0.522Likely Pathogenic4.10Destabilizing0.23.82Destabilizing3.96Destabilizing2.24Destabilizing-4.69Deleterious0.967Probably Damaging0.459Possibly Damaging3.69Benign0.00Affected3.3828-3-2-8.343.03259.5-55.40.00.01.40.0XXXPotentially PathogenicThe iso-butyl side chain of Leu402, located in an anti-parallel β sheet strand (res. Ala399-Ile411), packs with residues inside the hydrophobic core of the C2 domain (e.g., Ile268, Ala404, Leu266, Val400). In the variant simulations, the positively charged guanidinium group of the Arg402 side chain is not suitable for the hydrophobic niche. Consequently, the side chain moves outward from the hydrophobic C2 domain core and stacks with the phenol ring of Tyr363 or forms H-bonds with the carboxamide group of the Gln361 side chain in the β sheet strand (res. Thr359-Tyr364). This movement induces extensive negative effects on the C2 domain structure.
c.1511A>G
K504R
2D
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AIThe SynGAP1 missense variant K504R is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33438543‑A‑G). Consensus from most in‑silico predictors is benign: REVEL, FoldX, Foldetta, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized all report a benign effect, while only FATHMM predicts pathogenicity. Uncertain calls come from Rosetta and premPS. High‑accuracy assessments reinforce the benign prediction: AlphaMissense‑Optimized is benign; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Benign”; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, also predicts benign. Overall, the preponderance of evidence indicates the variant is most likely benign, and this conclusion does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain16-33438543-A-G21.24e-6-4.365Likely Benign0.088Likely BenignLikely Benign0.238Likely Benign0.13Likely Benign0.10.51Ambiguous0.32Likely Benign0.94Ambiguous-2.16Neutral0.002Benign0.015Benign-1.41Pathogenic0.11Tolerated3.373523-0.628.01
c.1517T>C
L506P
2D
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AIThe SynGAP1 missense variant L506P is listed in ClinVar (ID 975474.0) as Pathogenic and is not reported in gnomAD. All available in‑silico predictors classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments further support a deleterious impact: AlphaMissense‑Optimized is Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) is Pathogenic. Based on the unanimous computational evidence, the variant is most likely pathogenic, which aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic1-12.088Likely Pathogenic0.998Likely PathogenicLikely Pathogenic0.737Likely Pathogenic5.48Destabilizing0.710.19Destabilizing7.84Destabilizing2.50Destabilizing-6.96Deleterious1.000Probably Damaging1.000Probably Damaging1.55Pathogenic0.00Affected3.3735-3-3-5.4-16.04182.664.90.10.00.20.1XPotentially PathogenicLeu506 is located in the middle of an α-helix (res. Gly502-Tyr518) within the inter-helix space of two helices (res. Gly502-Tyr518 and res. Glu582-Met603). In the WT simulations, the iso-butyl side chain of Leu506 hydrophobically packs with residues in the inter-helix space (e.g., Ile510, Phe597, Leu598, Ala601). In the variant simulations, the cyclic five-membered pyrrolidine ring of Pro506 is not as optimal as Leu506 for hydrophobic packing with nearby residues. Additionally, Pro506 cannot maintain the hydrogen bond with the backbone oxygen of Gly502 as Leu506 does in the WT, which disrupts the secondary structure element.
c.2131C>G
L711V
2D
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AISynGAP1 missense variant L711V is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33441596‑C‑G). Prediction tools that indicate a benign effect include REVEL, FATHMM, and AlphaMissense‑Optimized. The majority of other in silico predictors—FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, and AlphaMissense‑Default—classify the change as pathogenic, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) reports it as likely pathogenic. High‑accuracy assessments further show AlphaMissense‑Optimized as benign, SGM‑Consensus as likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as pathogenic. Overall, the preponderance of evidence points to a pathogenic effect, which does not conflict with the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain16-33441596-C-G16.20e-7-10.045Likely Pathogenic0.709Likely PathogenicLikely Benign0.170Likely Benign3.48Destabilizing0.12.22Destabilizing2.85Destabilizing1.40Destabilizing-2.59Deleterious0.992Probably Damaging0.970Probably Damaging3.34Benign0.00Affected3.509120.4-14.03
c.851T>C
L284P
2D
AIThe SynGAP1 missense variant L284P is listed in ClinVar as Pathogenic (ClinVar ID 3344808.0) and is not reported in gnomAD. Prediction tools that assess functional impact uniformly classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized predicts pathogenic; the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) indicates Likely Pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, also predicts pathogenic. Based on the unanimous computational evidence, the variant is most likely pathogenic, and this conclusion aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Likely Pathogenic1-15.588Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.794Likely Pathogenic5.83Destabilizing0.25.81Destabilizing5.82Destabilizing1.89Destabilizing-6.17Deleterious1.000Probably Damaging0.999Probably Damaging1.64Pathogenic0.00Affected-3-3-5.4-16.04
c.866T>C
M289T
2D
AIThe SynGAP1 missense variant M289T is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools that classify the variant as benign include REVEL, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are polyPhen‑2 HumDiv and FATHMM. High‑accuracy assessments further support a benign outcome: AlphaMissense‑Optimized scores the variant as benign; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is labeled likely benign; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, also predicts a benign effect. Taken together, the majority of evidence indicates that M289T is most likely benign, and this conclusion does not contradict the current ClinVar status of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain1-4.668Likely Benign0.238Likely BenignLikely Benign0.222Likely Benign0.73Ambiguous0.10.17Likely Benign0.45Likely Benign-0.01Likely Benign-0.47Neutral0.801Possibly Damaging0.315Benign1.83Pathogenic0.57Tolerated-1-1-2.6-30.09
c.930G>C
E310D
2D
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AISynGAP1 E310D is reported in ClinVar (ID 975473.0) as Pathogenic and is not found in gnomAD. Prediction tools that assess the variant’s effect all converge on a deleterious outcome: REVEL, FoldX (uncertain), Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all indicate pathogenicity, leaving no tool in the benign category. High‑accuracy methods reinforce this view: AlphaMissense‑Optimized predicts Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, also reports Pathogenic. The single uncertain result from FoldX is treated as unavailable. Overall, the variant is most likely pathogenic, and this assessment is consistent with its ClinVar classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Likely Pathogenic1-11.218Likely Pathogenic0.994Likely PathogenicLikely Pathogenic0.666Likely Pathogenic1.87Ambiguous0.52.39Destabilizing2.13Destabilizing1.04Destabilizing-2.76Deleterious0.997Probably Damaging0.992Probably Damaging1.19Pathogenic0.02Affected3.3819320.0-14.03232.627.20.10.00.10.1XPotentially BenignThe carboxylate group of Glu310, located in an anti-parallel β sheet strand (res. Thr305-Asn315), is ideally positioned to interact with the hydroxyl and backbone amide groups of Thr295 on a twisted anti-parallel β strand. Because the carboxylate group can also interact with the GAP domain residues (e.g., Gln612, Tyr614), Glu310 potentially plays a key role in maintaining the tertiary assembly between the C2 and GAP domains. In the variant simulations, the carboxylate group of Asp310 can form the same interactions as glutamate; however, due to its one hydrocarbon shorter length, the connections are less stable or less optimal.
c.1003C>T
R335C
2D
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AISynGAP1 missense variant R335C is listed in ClinVar with an uncertain significance (ClinVar ID 2835865.0) and is present in gnomAD (ID 6‑33437908‑C‑T). Functional prediction tools cluster into two groups: benign predictions come from REVEL and premPS, whereas pathogenic predictions are made by PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, and AlphaMissense‑Default. Predictions that are inconclusive are AlphaMissense‑Optimized, FoldX, Rosetta, and Foldetta. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM Consensus (derived from the unanimous pathogenic vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as pathogenic, and Foldetta as uncertain. Overall, the majority of evidence points to a pathogenic effect. This conclusion aligns with the ClinVar designation of uncertain significance, which does not contradict the prediction that the variant is most likely pathogenic.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Uncertain 16-33437908-C-T16.20e-7-14.354Likely Pathogenic0.938Likely PathogenicAmbiguous0.277Likely Benign0.53Ambiguous0.10.85Ambiguous0.69Ambiguous0.46Likely Benign-5.69Deleterious1.000Probably Damaging0.998Probably Damaging1.67Pathogenic0.01Affected3.3822-3-47.0-53.05
c.1004G>A
R335H
2D
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AISynGAP1 missense variant R335H is listed in ClinVar with an uncertain significance and is present in gnomAD (variant ID 6-33437909‑G‑A). Functional prediction tools cluster into two groups: benign predictions come from REVEL, Rosetta, and Foldetta, while pathogenic predictions are made by PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, and AlphaMissense‑Default. Uncertain results are reported by FoldX, premPS, and AlphaMissense‑Optimized. High‑accuracy assessments show that the SGM Consensus—derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN—labels the variant as pathogenic, whereas Foldetta, a protein‑folding stability method combining FoldX‑MD and Rosetta outputs, predicts a benign effect. Overall, the preponderance of evidence points to a pathogenic impact, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Uncertain 16-33437909-G-A21.24e-6-12.521Likely Pathogenic0.831Likely PathogenicAmbiguous0.132Likely Benign0.58Ambiguous0.10.22Likely Benign0.40Likely Benign0.72Ambiguous-3.02Deleterious1.000Probably Damaging0.998Probably Damaging1.70Pathogenic0.03Affected3.3822201.3-19.05242.482.1-2.40.6-0.10.1UncertainThe guanidinium group of Arg335, located in a β hairpin loop linking two anti-parallel β sheet strands (res. Ala322-Asp330, res. Gly341-Pro349), faces the post-synaptic inner membrane surface. In the WT simulations, the Arg335 side chain dynamically forms salt bridges with the carboxylate groups of Asp322, Asp338, and Asp616. In contrast, the imidazole ring of His335, which is not double protonated and thus not positively charged in the variant simulations, continues to move dynamically without forming any lasting or strong interactions. Importantly, the positively charged arginine residues of the C2 domain are ideal membrane anchors for ensuring SynGAP-membrane association. However, this phenomenon cannot be addressed using solvent-only simulations.
c.103G>A
V35I
2D
AIThe SynGAP1 missense variant V35I is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33423512‑G‑A). Prediction tools that agree on a benign effect include REVEL, PROVEAN, polyPhen‑2 HumVar, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are polyPhen‑2 HumDiv and SIFT. High‑accuracy assessments show AlphaMissense‑Optimized as benign, and the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) also indicates a benign outcome. No Foldetta stability data are available. Overall, the majority of evidence points to a benign impact, and this is consistent with the ClinVar “Uncertain” classification rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 16-33423512-G-A53.10e-6-3.764Likely Benign0.081Likely BenignLikely Benign0.017Likely Benign-0.32Neutral0.672Possibly Damaging0.369Benign4.16Benign0.00Affected4.321340.314.03
c.1040C>A
T347N
2D
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AIThe SynGAP1 missense variant T347N is listed in ClinVar with an uncertain significance (ClinVar ID 3672484.0) and is present in the gnomAD database (gnomAD ID 6‑33437945‑C‑A). Prediction tools that uniformly indicate a benign effect include REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Only FATHMM predicts a pathogenic outcome. The SGM‑Consensus, which aggregates the majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, resolves to “Likely Benign” (3 benign vs. 1 pathogenic). High‑accuracy assessments are consistent: AlphaMissense‑Optimized is benign, the SGM‑Consensus is likely benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) is benign. Overall, the collective evidence points to a benign effect, aligning with the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33437945-C-A95.58e-6-5.545Likely Benign0.165Likely BenignLikely Benign0.059Likely Benign0.41Likely Benign0.10.46Likely Benign0.44Likely Benign-0.06Likely Benign1.96Neutral0.001Benign0.001Benign1.67Pathogenic0.60Tolerated3.372500-2.813.00
c.1042G>A
V348M
2D
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AISynGAP1 variant V348M is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools that report a clear outcome fall into two groups: benign calls come from REVEL, Foldetta, PROVEAN, and AlphaMissense‑Optimized; pathogenic calls come from polyPhen‑2 (HumDiv and HumVar), SIFT, and FATHMM. The remaining tools (FoldX, Rosetta, premPS, AlphaMissense‑Default, ESM1b) give uncertain results, and the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is unavailable due to no majority. High‑accuracy methods specifically show AlphaMissense‑Optimized as benign, Foldetta as benign, and the SGM Consensus is not available. With four benign and four pathogenic predictions, the evidence is evenly split, providing no definitive direction. Therefore, the variant is not clearly benign or pathogenic based on current predictions, and this lack of consensus does not contradict its ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 1-7.076In-Between0.546AmbiguousLikely Benign0.191Likely Benign-1.19Ambiguous0.10.72Ambiguous-0.24Likely Benign0.76Ambiguous-1.62Neutral0.966Probably Damaging0.564Possibly Damaging1.58Pathogenic0.03Affected3.372521-2.332.06253.8-47.4-0.30.10.20.1XPotentially BenignThe iso-propyl side chain of Val348, located in an anti-parallel β sheet strand (res. Gly341-Pro349), packs against multiple hydrophobic C2 domain residues (e.g., Leu353, Leu323, Leu402). In the variant simulations, the thioether side chain of Met348 can form similar interactions as valine due to its comparable hydrophobic profile. In fact, the thioether group of methionine can even stack favorably with the phenol ring of Tyr363 in the anti-parallel β sheet strand (res. Ala399-Ile411). Overall, the residue swap does not appear to cause negative effects on the protein structure based on the simulations.
c.1045C>T
P349S
2D
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AIThe SynGAP1 P349S missense variant is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, SIFT, AlphaMissense‑Default, and AlphaMissense‑Optimized. Those that predict a pathogenic impact are Rosetta, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and FATHMM. Predictions that are inconclusive or uncertain are FoldX, ESM1b, and premPS. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as pathogenic. Overall, the majority of tools, including the high‑accuracy methods, predict a pathogenic effect. Thus, the variant is most likely pathogenic, which does not contradict its current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 1-7.654In-Between0.217Likely BenignLikely Benign0.277Likely Benign1.92Ambiguous0.12.28Destabilizing2.10Destabilizing0.87Ambiguous-6.13Deleterious1.000Probably Damaging0.996Probably Damaging1.66Pathogenic0.06Tolerated3.37251-10.8-10.04194.9-18.1-0.10.00.20.1XXPotentially PathogenicThe cyclic pyrrolidine side chain of Pro349, located at the end of an anti-parallel β sheet strand (res. Gly341-Pro349), allows the strand to end and make a tight turn before a short α helical section within a loop connecting to another β strand (res. Thr359-Pro364). In the variant simulations, the hydroxyl group of Ser349 forms a hydrogen bond with the backbone amide group of Ala351 in the short helical section. Conversely, the backbone amide group of Ser349 (absent in proline) does not form any intra-protein hydrogen bonds. However, the β strand end connects to the α helical section in a more stable and consistent manner compared to the WT. Although the residue swap does not cause major adverse effects on the protein structure in the simulations, it is possible that the tight turn at the β strand end could not be created during folding without the presence of proline.
c.1055C>A
T352N
2D
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AIThe SynGAP1 missense variant T352N is listed in ClinVar as Benign (ClinVar ID 590151.0) and is present in the gnomAD database (gnomAD ID 6‑33437960‑C‑A). Across the broad panel of in‑silico predictors, 13 tools (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus) uniformly report a benign effect, whereas only FATHMM predicts pathogenicity. High‑accuracy assessments reinforce the benign consensus: AlphaMissense‑Optimized is benign; the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is benign; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, is also benign. No predictions or stability analyses are missing or inconclusive. Overall, the computational evidence strongly supports a benign classification, consistent with the ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Likely Benign 16-33437960-C-A21.24e-6-4.817Likely Benign0.117Likely BenignLikely Benign0.027Likely Benign0.20Likely Benign0.0-0.04Likely Benign0.08Likely Benign0.45Likely Benign-0.92Neutral0.255Benign0.057Benign1.75Pathogenic0.19Tolerated3.372500-2.813.00208.4-14.5-0.20.1-0.10.0XPotentially BenignThr352 is located in a short α helical section within a loop connecting two β strands (res. Gly341-Pro349, res. Thr359-Pro364) originating from two different anti-parallel β sheets of the C2 domain. In the WT simulations, the side chain hydroxyl and backbone amide groups of Thr354 form hydrogen bonds with the backbone carbonyl group of Pro349 at the end of the preceding β strand. This arrangement likely stabilizes the α helical section and aids in folding, keeping the short secondary structure element intact in the variant simulations. However, the carboxamide group of the Asn352 side chain does not form hydrogen bonds with the backbone carbonyl group of Pro349. Instead, it packs against the cyclic ring and forms hydrogen bonds with the phenol group of the Tyr363 side chain in the other β strand.
c.1058T>C
L353P
2D
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AIThe SynGAP1 missense variant L353P is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools show a strong bias toward pathogenicity: REVEL predicts benign, whereas FoldX, Rosetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, FATHMM, and AlphaMissense‑Default all predict pathogenic. Two tools report uncertainty: ESM1b and AlphaMissense‑Optimized. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized is inconclusive, SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) predicts pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) also predicts pathogenic. Overall, the majority of evidence points to a pathogenic impact, which is consistent with the ClinVar designation of uncertain significance but leans toward pathogenicity rather than benign. Thus, the variant is most likely pathogenic, and this prediction does not contradict the ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Uncertain 1-7.913In-Between0.936Likely PathogenicAmbiguous0.464Likely Benign4.63Destabilizing0.110.19Destabilizing7.41Destabilizing2.17Destabilizing-3.70Deleterious0.947Possibly Damaging0.454Possibly Damaging1.29Pathogenic0.02Affected3.3725-3-3-5.4-16.04
c.1066C>T
R356C
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R356C is listed in ClinVar as Benign (ClinVar ID 469145.0) and is present in gnomAD (ID 6‑33437971‑C‑T). Functional prediction tools cluster into two groups: benign predictions from REVEL and AlphaMissense‑Optimized, and pathogenic predictions from PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus score. Uncertain results are reported by FoldX, Rosetta, Foldetta, and premPS. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta as inconclusive. Overall, the majority of evidence points to a pathogenic effect, contradicting the ClinVar benign classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Likely Benign 16-33437971-C-T53.10e-6-11.827Likely Pathogenic0.774Likely PathogenicLikely Benign0.312Likely Benign0.76Ambiguous0.01.19Ambiguous0.98Ambiguous0.84Ambiguous-7.12Deleterious1.000Probably Damaging0.990Probably Damaging1.67Pathogenic0.00Affected3.3922-4-37.0-53.05212.391.0-0.10.3-0.30.1XPotentially PathogenicArg356 is located in a loop that includes a short helical section and connects two anti-parallel β sheet strands (res. Gly341-Pro349, res. Thr359-Pro364). In the WT simulations, the guanidinium group of Arg356 alternately forms salt bridges with the carboxylate groups of the GAP domain residues, Glu446 and Glu698. Arg356 also forms hydrogen bonds with the hydroxyl group of the GAP domain residue Thr691 and interacts with Met409 at the C2-GAP interface.In the variant simulations, the Cys356 mutation fails to maintain any of the Arg356 interactions and only occasionally forms weak hydrogen bonds with nearby C2 domain residues (e.g., Gln407). Although no negative structural effects are observed during the simulations, Arg356 is located at the C2 and GAP domain interface, making the residue swap potentially detrimental to the tertiary structure assembly.
c.1067G>A
R356H
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant R356H is recorded in ClinVar as benign (ClinVar ID 2984966.0) and is present in the gnomAD database (6‑33437972‑G‑A). Prediction tools that indicate a benign effect include REVEL, Rosetta, Foldetta, and AlphaMissense‑Optimized. Those that predict a pathogenic effect comprise premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, and AlphaMissense‑Default, with the SGM‑Consensus also labeling it likely pathogenic. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as benign. Overall, the majority of predictions support a pathogenic impact, which contradicts the ClinVar benign classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Likely Benign 16-33437972-G-A95.66e-6-11.453Likely Pathogenic0.614Likely PathogenicLikely Benign0.314Likely Benign0.59Ambiguous0.1-0.27Likely Benign0.16Likely Benign1.17Destabilizing-4.43Deleterious0.999Probably Damaging0.987Probably Damaging1.70Pathogenic0.01Affected3.3922021.3-19.05
c.106C>T
H36Y
2D
AIThe SynGAP1 missense variant H36Y is listed in ClinVar with an uncertain significance (ClinVar ID 2089635.0) and is present in the gnomAD database (gnomAD ID 6‑33423515‑C‑T). Functional prediction tools largely agree that the substitution is benign: REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all report a benign effect. Only SIFT predicts a pathogenic outcome. High‑accuracy assessments reinforce the benign consensus: AlphaMissense‑Optimized is benign, and the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is labeled Likely Benign. No Foldetta stability prediction is available. Overall, the computational evidence overwhelmingly supports a benign classification, which is consistent with the ClinVar designation of uncertain significance rather than a pathogenic claim.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 16-33423515-C-T21.24e-6-3.461Likely Benign0.139Likely BenignLikely Benign0.023Likely Benign-1.03Neutral0.219Benign0.066Benign4.16Benign0.00Affected4.321021.926.03
c.1082A>C
Q361P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant Q361P is listed in ClinVar as Pathogenic (ClinVar ID 3235087.0) and is not reported in gnomAD. Prediction tools that agree on a benign effect are REVEL and premPS. All other evaluated algorithms—FoldX, Rosetta, Foldetta, SGM‑Consensus, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized—predict a pathogenic impact. High‑accuracy methods specifically give a pathogenic verdict: AlphaMissense‑Optimized is Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) is Pathogenic. Based on the overwhelming agreement of these predictions, the variant is most likely pathogenic, which is consistent with its ClinVar classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Likely Pathogenic 1-13.280Likely Pathogenic0.956Likely PathogenicLikely Pathogenic0.482Likely Benign3.12Destabilizing0.03.45Destabilizing3.29Destabilizing0.38Likely Benign-3.03Deleterious0.996Probably Damaging0.979Probably Damaging1.63Pathogenic0.05Affected3.3725-101.9-31.01
c.1084T>C
W362R
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant W362R (ClinVar ID 41461.0) is listed as Pathogenic and is not reported in gnomAD. All available in silico predictors classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments concur: AlphaMissense‑Optimized predicts Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) reports Pathogenic. Thus, the variant is most likely pathogenic, and this prediction aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Pathogenic 2-14.004Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.706Likely Pathogenic2.64Destabilizing0.33.90Destabilizing3.27Destabilizing1.10Destabilizing-12.87Deleterious0.999Probably Damaging0.996Probably Damaging1.28Pathogenic0.00Affected3.39242-3-3.6-30.03287.5-34.1-0.20.1-0.60.2XXXPotentially PathogenicThe indole ring of Trp362, located on the surface of an anti-parallel β sheet (res. Thr359-Pro364) in the C2 domain, stacks with nearby residues (e.g., Arg401, Arg272). In the variant simulations, the guanidinium group of the introduced residue Arg362 forms a salt bridge with the carboxylate group of Glu273 and, like Trp362, stacks with other arginine residues (e.g., Arg401, Arg272). This residue is at both the C2-membrane interface and the C2-RasGTPase interface, so the residue swap could potentially affect both interactions. However, these phenomena cannot be addressed using solvent-only simulations. Notably, Arg272, which stacks with both the non-mutated Trp362 and the mutated Arg362, forms a salt bridge directly with Asp105 of Ras in the WT simulations. Therefore, the residue swap could affect the C2 domain stability, the SynGAP-membrane association, and the SynGAP-Ras association.10.1016/j.ajhg.2020.11.011
c.1108G>A
G370S
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant G370S is listed in ClinVar with an uncertain significance and is present in gnomAD (variant ID 6‑33438013‑G‑A). Consensus predictions from standard in silico tools cluster into two groups: benign (REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized) and pathogenic (FoldX, FATHMM). Two tools report uncertainty: Rosetta and Foldetta. High‑accuracy assessments further support a benign outcome: AlphaMissense‑Optimized predicts benign; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is Likely Benign; Foldetta remains uncertain. Overall, the preponderance of evidence points to a benign effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33438013-G-A159.31e-6-3.533Likely Benign0.081Likely BenignLikely Benign0.282Likely Benign2.83Destabilizing2.01.05Ambiguous1.94Ambiguous-0.02Likely Benign0.47Neutral0.000Benign0.000Benign1.33Pathogenic0.77Tolerated3.421910-0.430.03196.6-49.60.92.2-0.10.4UncertainGly370 is located in the Gly-rich Ω loop (res. Pro364- Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because, the Ω loop is assumed to be directly interacting with the membrane, it is only seen to move arbitrarily throughout the WT solvent simulations. The Ω loop is potentially playing a crucial loop in the SynGAP-membrane complex association, stability and dynamics, regardless, this aspect cannot be addressed through the solvent simulations only. The Ω-loops are known to have a major role in protein functions that requires flexibility and thus, they are rich in glycines, prolines and to a lesser extent, hydrophilic residues to ensure maximum flexibility. Thus, Ser370 in the variant is potentially tolerated in the Ω loop. However, since the effect on the Gly-rich Ω loop dynamics can only be well-studied through the SynGAP-membrane complex, no definite conclusions can be withdrawn.
c.1118G>A
G373E
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant G373E is listed in ClinVar with an Uncertain significance and is not present in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, FATHMM, and AlphaMissense‑Optimized. Those that predict a pathogenic effect are FoldX, Foldetta, SIFT, and AlphaMissense‑Default. Predictions from Rosetta and ESM1b are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as benign, and Foldetta as pathogenic. Overall, the majority of evidence points to a benign impact, which does not contradict the ClinVar status of Uncertain.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 1-7.281In-Between0.569Likely PathogenicLikely Benign0.420Likely Benign4.13Destabilizing3.20.52Ambiguous2.33Destabilizing-0.02Likely Benign-0.69Neutral0.001Benign0.000Benign3.90Benign0.01Affected0-2-3.172.06
c.1118G>T
G373V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant G373V is listed in ClinVar with an uncertain significance and is present in gnomAD (variant ID 6‑33438023‑G‑T). Functional prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (Likely Benign). Tools that predict a pathogenic outcome are FoldX, Foldetta, and SIFT, while Rosetta is inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus as Likely Benign, and Foldetta as pathogenic. Overall, the majority of predictions support a benign impact, and this consensus does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33438023-G-T65.03e-6-6.062Likely Benign0.112Likely BenignLikely Benign0.428Likely Benign5.32Destabilizing3.20.82Ambiguous3.07Destabilizing0.09Likely Benign-0.98Neutral0.007Benign0.001Benign3.90Benign0.00Affected3.5316-1-34.642.08207.6-68.11.91.1-0.60.1UncertainGly373 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and thus hydrophobic residues like valine are rarely tolerated. Although no negative structural effects are observed in the variant simulations, Val373 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. However, since the effect on the Gly-rich Ω loop dynamics can only be studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1121C>A
S374Y
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant S374Y is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, FATHMM, AlphaMissense‑Optimized, and polyPhen‑2 HumVar, whereas polyPhen‑2 HumDiv and SIFT predict a pathogenic impact. Uncertain calls come from FoldX, Rosetta, Foldetta, ESM1b, and AlphaMissense‑Default. High‑accuracy assessments show AlphaMissense‑Optimized predicts a benign outcome; the SGM Consensus (derived from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is inconclusive, and Foldetta likewise yields an uncertain stability change. Overall, the majority of available predictions favor a benign effect, and this does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 1-7.774In-Between0.344AmbiguousLikely Benign0.310Likely Benign0.71Ambiguous1.20.66Ambiguous0.69Ambiguous-0.02Likely Benign-1.18Neutral0.875Possibly Damaging0.271Benign5.41Benign0.01Affected4.3213-3-2-0.576.10237.3-76.90.50.40.50.3UncertainSer374 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and thus, large and relatively hydrophobic residues like tyrosine are rarely tolerated. Additionally, the hydroxyl group of Tyr374 frequently forms various hydrogen bonds with other loop residues in the variant simulations. Although no negative structural effects are observed in the variant simulations, Tyr374 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. However, since the effect on Gly-rich Ω loop dynamics can only be studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1126G>T
G376C
2D
AISynGAP1 missense variant G376C is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools show a split: benign calls come from Rosetta, premPS, PROVEAN, AlphaMissense‑Default, and AlphaMissense‑Optimized, while pathogenic calls come from REVEL, FoldX, polyPhen‑2 (HumDiv and HumVar), SIFT, and FATHMM. Two tools report uncertainty: Foldetta and ESM1b. High‑accuracy assessments further clarify the picture: AlphaMissense‑Optimized predicts benign; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, also yields a benign verdict; Foldetta remains uncertain. Overall, the majority of conventional predictors lean toward pathogenicity, whereas the most accurate methods favor a benign effect. Thus, the variant is most likely pathogenic based on the prevailing predictions, and this assessment does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 1-7.686In-Between0.125Likely BenignLikely Benign0.560Likely Pathogenic2.56Destabilizing0.50.22Likely Benign1.39Ambiguous0.16Likely Benign-1.15Neutral1.000Probably Damaging1.000Probably Damaging1.32Pathogenic0.01Affected-3-32.946.09
c.1131G>A
M377I
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant M377I (ClinVar ID 3803473.0, status = Uncertain) is present in gnomAD (ID = 6‑33438036‑G‑A). Functional prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool in the dataset predicts a pathogenic outcome. High‑accuracy assessments further support a benign interpretation: AlphaMissense‑Optimized is benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Benign,” while Foldetta (combining FoldX‑MD and Rosetta outputs) is inconclusive. Overall, the computational evidence strongly favors a benign classification, which does not contradict the ClinVar status of Uncertain.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33438036-G-A16.23e-7-2.895Likely Benign0.212Likely BenignLikely Benign0.227Likely Benign0.76Ambiguous0.30.54Ambiguous0.65Ambiguous0.24Likely Benign-0.41Neutral0.000Benign0.001Benign5.46Benign0.26Tolerated4.3212122.6-18.03
c.1136C>G
S379W
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S379W is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33438041‑C‑G). Prediction tools that indicate a benign effect include premPS, PROVEAN, FATHMM, and AlphaMissense‑Optimized. Those that predict a pathogenic impact comprise REVEL, FoldX, Rosetta, Foldetta, polyPhen‑2 (HumDiv and HumVar), SIFT, and ESM1b. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, yields a benign outcome. High‑accuracy assessments show AlphaMissense‑Optimized as benign, Foldetta as pathogenic, and the SGM Consensus as benign. Because the majority of conventional tools favor pathogenicity while the high‑accuracy subset is split, the overall evidence leans toward a pathogenic effect. This conclusion does not contradict the ClinVar uncertain status, which remains unresolved.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 16-33438041-C-G-8.898Likely Pathogenic0.388AmbiguousLikely Benign0.520Likely Pathogenic4.32Destabilizing3.43.56Destabilizing3.94Destabilizing0.16Likely Benign-1.02Neutral0.998Probably Damaging0.844Possibly Damaging3.82Benign0.01Affected4.3211-2-3-0.199.14271.3-75.71.41.00.60.5UncertainSer379 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and thus hydrophobic residues like tryptophan are rarely tolerated. Although no major negative structural effects are observed in the variant simulations, Trp379 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. However, since the effect on Gly-rich Ω loop dynamics can only be studied through the SynGAP-membrane complex, no definite conclusions can be drawn
c.1136C>T
S379L
2D
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AIThe SynGAP1 missense variant S379L is listed in ClinVar as Benign (ClinVar ID 1360860.0) and is present in gnomAD (ID 6‑33438041‑C‑T). Prediction tools that agree on a benign effect include REVEL, FoldX, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (Likely Benign). Tools that predict a pathogenic effect are Rosetta and SIFT. Foldetta and premPS are inconclusive and are treated as unavailable. High‑accuracy assessments show AlphaMissense‑Optimized as Benign, the SGM‑Consensus as Likely Benign, and Foldetta as Uncertain. Overall, the majority of evidence supports a benign impact, which is consistent with the ClinVar classification; there is no contradiction with the reported ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Benign 16-33438041-C-T84.05e-5-5.641Likely Benign0.173Likely BenignLikely Benign0.469Likely Benign0.39Likely Benign0.23.38Destabilizing1.89Ambiguous-0.52Ambiguous-0.85Neutral0.015Benign0.002Benign3.83Benign0.04Affected4.3211-3-24.626.08251.9-48.10.61.10.00.5UncertainSer379 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and thus hydrophobic residues like leucine are rarely tolerated. Although no negative structural effects are observed in the variant simulations, Leu379 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. However, since the effect on Gly-rich Ω loop dynamics can only be studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.113C>T
P38L
2D
AIThe SynGAP1 missense variant P38L is listed in ClinVar with an “Uncertain” status and is present in gnomAD (gnomAD ID 6‑33423522‑C‑T). Prediction tools that agree on a benign effect include REVEL, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (which is “Likely Benign”). In contrast, tools that predict a pathogenic effect are PROVEAN, polyPhen‑2 (HumDiv and HumVar), and SIFT. High‑accuracy assessments show AlphaMissense‑Optimized as benign and the SGM‑Consensus as likely benign; the Foldetta stability analysis is unavailable. Overall, the majority of evidence points to a benign impact, and this conclusion does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignConflicting 46-33423522-C-T84.96e-6-2.469Likely Benign0.197Likely BenignLikely Benign0.141Likely Benign-2.56Deleterious0.983Probably Damaging0.931Probably Damaging4.02Benign0.00Affected4.321-3-35.416.04
c.1142G>T
G381V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant G381V is listed in ClinVar with an uncertain significance (ClinVar ID 1940172.0) and is present in the gnomAD database (6‑33438047‑G‑T). Functional prediction tools that report a benign effect include premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are REVEL, FoldX, Rosetta, and FATHMM. The SGM‑Consensus, which aggregates AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, yields a majority‑benign vote and is reported as Likely Benign. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus as benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as pathogenic. Overall, the majority of predictions lean toward a benign impact, and this is consistent with the ClinVar uncertain status rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33438047-G-T21.25e-6-5.967Likely Benign0.146Likely BenignLikely Benign0.618Likely Pathogenic7.16Destabilizing1.04.10Destabilizing5.63Destabilizing-0.32Likely Benign-0.95Neutral0.386Benign0.157Benign1.32Pathogenic0.10Tolerated4.329-1-34.642.08214.6-68.80.30.7-0.50.3UncertainGly381 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and thus hydrophobic residues like valine are rarely tolerated. Although no negative structural effects are observed in the variant simulations, Val381 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. However, since the effects on Gly-rich Ω loop dynamics can only be well studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1147G>T
G383W
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant G383W is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33438052‑G‑T). Functional prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, FATHMM, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are FoldX, Rosetta, Foldetta, polyPhen‑2 (HumDiv and HumVar), SIFT, and ESM1b; AlphaMissense‑Default remains uncertain. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (derived from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as benign, and Foldetta as pathogenic. Because the majority of conventional predictors favor pathogenicity while the high‑accuracy subset is split, the overall evidence leans toward a pathogenic interpretation. This conclusion does not conflict with the ClinVar uncertain status, which reflects the current lack of definitive clinical data.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 16-33438052-G-T16.22e-7-10.161Likely Pathogenic0.439AmbiguousLikely Benign0.469Likely Benign5.81Destabilizing3.64.44Destabilizing5.13Destabilizing0.08Likely Benign-1.01Neutral0.959Probably Damaging0.704Possibly Damaging4.09Benign0.00Affected4.327-2-7-0.5129.16
c.1150G>A
G384S
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant G384S (gnomAD ID 6-33438055‑G‑A) is listed in ClinVar with an uncertain significance. Functional prediction tools cluster into two groups: benign predictions from REVEL, premPS, PROVEAN, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized; pathogenic predictions from polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, and FATHMM. The SGM‑Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a likely benign outcome. High‑accuracy assessments further support benignity: AlphaMissense‑Optimized predicts benign, the SGM‑Consensus (majority vote) is likely benign, and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, is inconclusive. No evidence from FoldX or Rosetta alone is available. Overall, the preponderance of evidence points to a benign effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33438055-G-A16.22e-7-5.243Likely Benign0.090Likely BenignLikely Benign0.315Likely Benign1.92Ambiguous0.21.66Ambiguous1.79Ambiguous0.19Likely Benign-0.67Neutral0.980Probably Damaging0.968Probably Damaging1.33Pathogenic0.04Affected4.32210-0.430.03202.4-49.80.51.0-0.20.0UncertainGly384 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and so they are rich in glycines, prolines, and, to a lesser extent, small hydrophilic residues to ensure maximum flexibility. Thus, the variant’s Ser384 is potentially tolerated in the Ω loop, although the hydroxyl group of Ser384 forms various hydrogen bonds with several other loop residues in the variant simulations. However, since the effects on Gly-rich Ω loop dynamics can only be studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1153T>C
S385P
2D
3DClick to see structure in 3D Viewer
AISynGAP1 variant S385P is listed in ClinVar with an uncertain significance and is present in gnomAD (variant ID 6-33438058‑T‑C). Prediction tools that classify the variant as benign include REVEL, Foldetta, premPS, PROVEAN, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict pathogenicity are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and SIFT. Predictions from FoldX and Rosetta are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as likely benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as benign. Overall, the majority of computational evidence supports a benign effect, which is consistent with the ClinVar uncertain status and does not contradict it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33438058-T-C-5.431Likely Benign0.123Likely BenignLikely Benign0.385Likely Benign0.91Ambiguous0.6-0.90Ambiguous0.01Likely Benign0.19Likely Benign-0.26Neutral0.676Possibly Damaging0.693Possibly Damaging4.63Benign0.04Affected4.3231-1-0.810.04210.318.51.80.90.30.0UncertainSer385 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and so they are rich in glycine residues, prolines, and, to a lesser extent, small hydrophilic residues to ensure maximum flexibility. Thus, the variant’s Pro385 is potentially tolerated in the Ω loop. However, since the effects on Gly-rich Ω loop dynamics can only be well studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1154C>G
S385W
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S385W is listed in ClinVar as Benign (ClinVar ID 218691.0) and is present in gnomAD (ID 6‑33438059‑C‑G). Functional prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, FATHMM, AlphaMissense‑Optimized, and the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). Tools that predict a pathogenic effect are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, and ESM1b. Predictions that are inconclusive or unavailable are FoldX, Rosetta, Foldetta, and AlphaMissense‑Default. High‑accuracy assessments show AlphaMissense‑Optimized as Benign, the SGM Consensus as Benign, and Foldetta as Uncertain. Taken together, the majority of evidence points to a benign impact, which aligns with the ClinVar classification and does not contradict it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Benign 16-33438059-C-G-9.353Likely Pathogenic0.362AmbiguousLikely Benign0.373Likely Benign0.53Ambiguous0.20.69Ambiguous0.61Ambiguous0.00Likely Benign-0.84Neutral0.986Probably Damaging0.968Probably Damaging4.63Benign0.00Affected4.323-2-3-0.199.14260.4-71.20.51.30.70.4UncertainSer385 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364, res. Ala399-Ile411). Because the Ω loop is assumed to directly interact with the membrane, it moves arbitrarily throughout the WT solvent simulations. The Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play major roles in protein functions that require flexibility, and thus hydrophobic residues like tryptophan are rarely tolerated. Although no major negative structural effects are observed in the variant simulations, Trp385 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. However, since the effects on Gly-rich Ω loop dynamics can only be studied through the SynGAP-membrane complex, no definite conclusions can be drawn.10.1016/j.ajhg.2020.11.011
c.1157G>A
G386E
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant G386E is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33438062‑G‑A). Prediction tools that agree on a benign effect include REVEL, PROVEAN, polyPhen‑2 HumVar, FATHMM, and AlphaMissense‑Optimized. Those that agree on a pathogenic effect are FoldX, Foldetta, polyPhen‑2 HumDiv, SIFT, ESM1b, and AlphaMissense‑Default. Uncertain predictions come from Rosetta and premPS. High‑accuracy assessments show AlphaMissense‑Optimized as benign, Foldetta as pathogenic, and the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is inconclusive. Overall, the majority of tools predict a pathogenic impact, suggesting the variant is most likely pathogenic, which does not contradict the ClinVar status of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 16-33438062-G-A-9.286Likely Pathogenic0.686Likely PathogenicLikely Benign0.447Likely Benign3.69Destabilizing2.90.79Ambiguous2.24Destabilizing0.54Ambiguous-0.83Neutral0.860Possibly Damaging0.354Benign3.93Benign0.01Affected4.323-20-3.172.06
c.1160G>T
G387V
2D
3DClick to see structure in 3D Viewer
AISynGAP1 G387V is listed in ClinVar with an uncertain significance and is present in gnomAD (variant ID 6-33438065-G-T). Functional prediction tools that report a benign effect include REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are FoldX, Rosetta, SIFT, and FATHMM. The SGM‑Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is classified as likely benign, while the Foldetta stability assessment (combining FoldX‑MD and Rosetta) indicates a pathogenic change. High‑accuracy assessments show AlphaMissense‑Optimized as benign, SGM‑Consensus as likely benign, and Foldetta as pathogenic. Overall, the majority of predictions favor a benign impact, and this consensus does not contradict the ClinVar uncertain status; thus the variant is most likely benign.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Uncertain 16-33438065-G-T221.37e-5-6.199Likely Benign0.153Likely BenignLikely Benign0.390Likely Benign5.13Destabilizing1.86.44Destabilizing5.79Destabilizing-0.33Likely Benign-0.54Neutral0.069Benign0.077Benign1.32Pathogenic0.01Affected4.323-1-34.642.08207.7-68.4-0.70.8-0.50.1UncertainGly387 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364 and res. Ala399-Ile411). The Ω loop is assumed to directly interact with the membrane, and it is observed to move arbitrarily throughout the WT solvent simulations. This loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play significant roles in protein functions that require flexibility, and thus hydrophobic residues like valine are rarely tolerated. Although no negative structural effects are visualized in the variant’s simulations, Val387 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. Since the effects on the Gly-rich Ω loop dynamics can only be well studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1169G>A
G390E
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant G390E is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools that classify the variant as benign include premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and AlphaMissense‑Optimized. Those that predict pathogenicity are REVEL, FoldX, Rosetta, Foldetta, SIFT, FATHMM, and AlphaMissense‑Default. A high‑accuracy assessment shows AlphaMissense‑Optimized as benign, the SGM Consensus (derived from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as pathogenic. Overall, the majority of predictions support a pathogenic effect, and this aligns with the ClinVar designation of uncertain significance rather than contradicting it. Thus, the variant is most likely pathogenic based on current computational evidence.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 1-7.913In-Between0.646Likely PathogenicLikely Benign0.575Likely Pathogenic2.61Destabilizing0.94.28Destabilizing3.45Destabilizing0.47Likely Benign-0.87Neutral0.276Benign0.045Benign1.32Pathogenic0.05Affected4.3280-2-3.172.06241.5-108.40.60.5-0.10.1UncertainGly390 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364 and res. Ala399-Ile411). The Ω loop is assumed to directly interact with the membrane, and it is observed to move arbitrarily throughout the WT solvent simulations. This loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play significant roles in protein functions that require flexibility, and so they are rich in glycine residues, prolines, and to a lesser extent, small hydrophilic residues to ensure maximum flexibility. Thus, the variant’s Glu390 may not be as well tolerated in the Ω loop. Additionally, the carboxylate group of Glu390 occasionally forms H-bonds with other loop residues in the variant simulations. The interaction between the acidic carboxylate side chain and the acidic membrane lipids may further influence the SynGAP-membrane complex. However, since the effects on the Gly-rich Ω loop dynamics can only be well studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1172G>T
G391V
2D
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AIThe SynGAP1 missense variant G391V is listed in ClinVar as Benign (ClinVar ID 1014488.0) and is present in gnomAD (variant ID 6‑33438077‑G‑T). Prediction tools that classify the variant as benign include premPS, PROVEAN, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus. Tools that predict pathogenicity are REVEL, FoldX, Rosetta, Foldetta, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and FATHMM. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as pathogenic. With two high‑accuracy tools supporting benign and one supporting pathogenic, the overall prediction leans toward a benign effect. This conclusion aligns with the ClinVar benign classification, so there is no contradiction with the existing clinical annotation.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Likely Benign 16-33438077-G-T31.86e-6-6.642Likely Benign0.133Likely BenignLikely Benign0.595Likely Pathogenic4.23Destabilizing1.34.81Destabilizing4.52Destabilizing-0.11Likely Benign-0.98Neutral0.994Probably Damaging0.887Possibly Damaging1.32Pathogenic0.10Tolerated3.698-1-34.642.08228.6-69.00.00.8-0.50.3UncertainGly387 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364 and res. Ala399-Ile411). The Ω loop is assumed to directly interact with the membrane, and it is observed to move arbitrarily throughout the WT solvent simulations. This loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone.Ω loops are known to play significant roles in protein functions that require flexibility, and thus hydrophobic residues like valine are rarely tolerated. Although no negative structural effects are visualized in the variant’s simulations, Val391 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. Since the effects on the Gly-rich Ω loop dynamics can only be well studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1193C>T
P398L
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant P398L (ClinVar ID 2415189.0) is listed as Uncertain in ClinVar and is present in gnomAD (ID 6‑33438098‑C‑T). Functional prediction tools that agree on a benign effect include Foldetta, polyPhen‑2 HumVar, FATHMM, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are REVEL, PROVEAN, polyPhen‑2 HumDiv, and SIFT. Predictions that are uncertain or inconclusive are FoldX, Rosetta, premPS, ESM1b, and AlphaMissense‑Default. High‑accuracy assessments show AlphaMissense‑Optimized as benign, Foldetta as benign, and the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is inconclusive. Based on the available predictions, the variant is most likely benign, and this assessment does not contradict the ClinVar status of Uncertain.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 16-33438098-C-T84.96e-6-7.518In-Between0.547AmbiguousLikely Benign0.599Likely Pathogenic1.48Ambiguous0.2-0.54Ambiguous0.47Likely Benign0.62Ambiguous-7.10Deleterious0.961Probably Damaging0.256Benign5.72Benign0.01Affected3.4016-3-35.416.04245.8-68.6-0.10.0-0.30.2XPotentially PathogenicPro398 is located in the Gly-rich Ω loop (res. Pro364-Pro398) between two anti-parallel β sheet strands (res. Thr359-Pro364 and res. Ala399-Ile411). The Ω loop is assumed to directly interact with the membrane, and it is observed to move arbitrarily throughout the WT solvent simulations. Although the residue swap does not influence the nearby secondary structure elements, proline is often found at the ends of β sheets due to its disfavored status during folding.Additionally, the Ω loop potentially plays a crucial role in the SynGAP-membrane complex association, stability, and dynamics. However, this aspect cannot be fully addressed through solvent simulations alone. Ω loops are known to play significant roles in protein functions that require flexibility, and thus hydrophobic residues like leucine are rarely tolerated. Although no negative structural effects are visualized in the variant’s simulations, Leu398 may exert drastic effects on the SynGAP-membrane complex dynamics and stability. Since the effects on the Gly-rich Ω loop dynamics can only be well studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1195G>A
A399T
2D
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AIThe SynGAP1 missense variant A399T is listed in ClinVar (ID 1990638.0) as Benign and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a pathogenic outcome; the only inconclusive results come from FoldX, Rosetta, and Foldetta, which are treated as unavailable evidence. High‑accuracy assessments show AlphaMissense‑Optimized as Benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as Likely Benign, and Foldetta as Uncertain. Overall, the variant is most likely benign, and this conclusion aligns with its ClinVar benign classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Benign 1-5.236Likely Benign0.114Likely BenignLikely Benign0.272Likely Benign1.24Ambiguous0.10.91Ambiguous1.08Ambiguous0.49Likely Benign-0.40Neutral0.131Benign0.039Benign5.41Benign0.69Tolerated3.382610-2.530.03211.4-41.40.00.00.60.4XPotentially PathogenicThe methyl group of Ala399, located in an anti-parallel β sheet strand (res. Ala399-Ile411), is swapped for a hydroxyl-containing threonine. In the variant simulations, the hydroxyl group of Thr399 can form H-bonds with the backbone atoms of the residues in the membrane-facing loops (e.g., Gly382) in the C2 domain. Consequently, the ability of the Thr399 side chain to form H-bonds with the membrane-facing loops could adversely affect the dynamics and stability of the SynGAP-membrane association. However, since the effects on the dynamics of the membrane-facing loops can only be studied through the SynGAP-membrane complex, no definite conclusions can be drawn.
c.1198G>C
V400L
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant V400L is listed in ClinVar as Benign (ClinVar ID 1166313.0) and is present in gnomAD (variant ID 6‑33438103‑G‑C). Prediction tools that agree on a benign effect include REVEL, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a pathogenic outcome; the only inconclusive result is from FoldX, which is treated as unavailable. High‑accuracy assessments confirm benignity: AlphaMissense‑Optimized is benign; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is benign; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, is benign. Overall, the computational evidence strongly supports a benign classification, consistent with the ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignC2Benign 16-33438103-G-C221.36e-5-1.000Likely Benign0.137Likely BenignLikely Benign0.325Likely Benign-0.71Ambiguous0.20.39Likely Benign-0.16Likely Benign-0.29Likely Benign-0.60Neutral0.001Benign0.001Benign5.33Benign0.64Tolerated3.382721-0.414.03251.0-30.10.00.00.70.1XPotentially BenignThe iso-propyl side chain of Val400, located in an anti-parallel β sheet strand (res. Ala399-Ile411), hydrophobically packs against hydrophobic residues within the anti-parallel β sheet of the C2 domain (e.g., Ile268, Ala404, Leu325, Leu402). Val400 is swapped for another hydrophobic residue, leucine, whose branched hydrocarbon side chain is of a comparable size and thus packs favorably within the C2 domain. In short, the residue swap has no apparent negative effect on the structure based on the variant simulations.10.1016/j.ajhg.2020.11.011
c.1199T>A
V400E
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant V400E is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that indicate a benign effect are polyPhen‑2 HumVar and FATHMM; all other evaluated algorithms (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, SIFT, ESM1b, AlphaMissense‑Default, and the SGM‑Consensus) predict a pathogenic impact. High‑accuracy assessments further support a deleterious outcome: AlphaMissense‑Optimized scores the variant as pathogenic, the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) labels it “Likely Pathogenic,” and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts a pathogenic effect. Based on the preponderance of pathogenic predictions, the variant is most likely pathogenic, which does not contradict its current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Uncertain 1-13.686Likely Pathogenic0.998Likely PathogenicLikely Pathogenic0.810Likely Pathogenic3.70Destabilizing0.22.46Destabilizing3.08Destabilizing2.29Destabilizing-4.88Deleterious0.920Possibly Damaging0.335Benign5.31Benign0.00Affected3.3827-2-2-7.729.98249.1-38.8-0.10.11.00.0XXXPotentially PathogenicThe iso-propyl side chain of Val400, located in an anti-parallel β sheet strand (res. Ala399-Ile411), hydrophobically packs against hydrophobic residues within the anti-parallel β sheet of the C2 domain (e.g., Ile268, Ala404, Leu325, Leu402). In the variant simulations, the negatively charged carboxylate group of the Glu400 side chain is not suitable for occupying the hydrophobic niche. Consequently, the side chain escapes the center of the C2 domain and interacts with the backbone amide groups of Leu402 in the same β strand and/or Ile269 and Glu270 in a neighboring β strand (res. Arg259-Arg272). This residue swap disrupts the hydrophobic packing and generally has extensive negative effects on the C2 domain structure. At a minimum, the residue swap could affect the C2 domain stability and membrane association.
c.1202G>A
R401Q
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R401Q is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33438107‑G‑A). Prediction tools that agree on a benign effect are limited to FATHMM, whereas the majority of algorithms (REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus) predict a pathogenic impact. Uncertain results are reported by FoldX, Rosetta, and Foldetta. High‑accuracy methods reinforce the pathogenic prediction: AlphaMissense‑Optimized scores the variant as pathogenic, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) indicates “Likely Pathogenic,” and Foldetta’s stability assessment is inconclusive. Overall, the preponderance of evidence points to a pathogenic effect, which does not contradict the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Uncertain 16-33438107-G-A-11.213Likely Pathogenic0.969Likely PathogenicLikely Pathogenic0.780Likely Pathogenic0.96Ambiguous0.11.50Ambiguous1.23Ambiguous1.20Destabilizing-3.69Deleterious0.999Probably Damaging0.978Probably Damaging5.47Benign0.04Affected3.3827111.0-28.06
c.1213C>T
R405C
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant R405C is listed in ClinVar with an uncertain significance (ClinVar ID 1185858.0) and is present in gnomAD (ID 6‑33438118‑C‑T). Prediction tools that indicate a benign effect include REVEL, FATHMM, and AlphaMissense‑Optimized. Those that predict a pathogenic effect comprise premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, and AlphaMissense‑Default. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a likely pathogenic outcome. High‑accuracy assessments show AlphaMissense‑Optimized as benign, SGM Consensus as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as uncertain. FoldX and Rosetta individually return uncertain results. Overall, the balance of evidence favors a pathogenic interpretation, which does not conflict with the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Conflicting 26-33438118-C-T63.72e-6-9.206Likely Pathogenic0.713Likely PathogenicLikely Benign0.427Likely Benign0.72Ambiguous0.11.51Ambiguous1.12Ambiguous1.21Destabilizing-7.27Deleterious1.000Probably Damaging1.000Probably Damaging3.61Benign0.02Affected3.3828-4-37.0-53.05221.382.6-0.10.0-0.20.3XXPotentially PathogenicThe guanidinium group of Arg405, located in an anti-parallel β sheet strand of the C2 domain (res. Ala399-Ile411), forms a salt bridge with the carboxylate group of the Glu446 side chain from an opposing α helix (res. Val441-Ser457) in the GAP domain. The positively charged Arg405 side chain also stacks with the aromatic ring of the Phe358 side chain from a loop preceding the β strand (res. Thr359-Thr366), which could assist in maintaining the anti-parallel strand arrangement.In the variant simulations, the thiol-containing side chain of Cys405 is neutral and smaller compared to the arginine side chain. The lack of Arg405-Phe358 stacking affects the loop structure, causing it to assume a β strand form—an effect that could be exacerbated during protein folding. Moreover, the inability of Cys405 to form a salt bridge with Glu446 could affect the tertiary structure assembly, although this is not apparent based on the variant simulations.
c.1214G>A
R405H
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant R405H is listed in ClinVar with an uncertain significance (ClinVar ID 863440.0) and is present in gnomAD (variant ID 6‑33438119‑G‑A). Functional prediction tools that agree on a benign effect include REVEL, FATHMM, and AlphaMissense‑Optimized. In contrast, the majority of tools predict a pathogenic impact: FoldX, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and the SGM‑Consensus score (Likely Pathogenic). High‑accuracy assessments further support a deleterious outcome: AlphaMissense‑Optimized reports a benign change, whereas the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) and Foldetta (combining FoldX‑MD and Rosetta) both predict pathogenicity. Overall, the preponderance of evidence indicates that R405H is most likely pathogenic, which does not contradict the current ClinVar status of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Conflicting 26-33438119-G-A42.48e-6-9.081Likely Pathogenic0.706Likely PathogenicLikely Benign0.371Likely Benign2.79Destabilizing0.61.85Ambiguous2.32Destabilizing1.26Destabilizing-4.54Deleterious1.000Probably Damaging0.991Probably Damaging3.65Benign0.01Affected3.3828201.3-19.05214.0102.2-0.10.0-0.70.1XPotentially PathogenicThe guanidinium group of Arg405, located in an anti-parallel β sheet strand of the C2 domain (res. Pro398-Ile411), forms a salt bridge with the carboxylate group of the Glu446 side chain from an opposing α helix (res. Val441-Ser457) in the GAP domain. The positively charged Arg405 side chain also stacks with the aromatic ring of the Phe358 side chain from a loop preceding the β strand (res. Thr359-Thr366), which could assist in maintaining the anti-parallel strand arrangement.In the variant simulations, the imidazole ring of His405 does not stack with the aromatic ring of Phe358 nor form any lasting H-bonds with the loop residues. The imidazole ring of His405 (neutral and epsilon protonated in the simulations) is unable to form a salt bridge with Glu446, which could affect the tertiary structure assembly, although this is not apparent based on the variant simulations.
c.1214G>C
R405P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R405P is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that classify the variant as benign include only FATHMM. All other evaluated algorithms—REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus—predict it to be pathogenic or likely pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized scores it as pathogenic; the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates it is likely pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta stability predictions, also classifies it as pathogenic. Based on the overwhelming agreement among these predictions, the variant is most likely pathogenic, which does not contradict its current ClinVar “Uncertain” status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Uncertain 1-14.206Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.572Likely Pathogenic3.11Destabilizing0.35.19Destabilizing4.15Destabilizing1.26Destabilizing-6.32Deleterious1.000Probably Damaging1.000Probably Damaging3.62Benign0.01Affected3.3828-202.9-59.07
c.121C>T
R41C
2D
AIThe SynGAP1 missense variant R41C is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33423530‑C‑T). Prediction tools that agree on a benign effect include REVEL, PROVEAN, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN). Tools that predict a pathogenic effect are polyPhen‑2 (HumDiv and HumVar) and SIFT. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus as benign, and no result is available from Foldetta (protein‑folding stability). Taken together, the majority of evidence points to a benign impact for R41C, and this conclusion does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignConflicting 36-33423530-C-T74.34e-6-4.745Likely Benign0.207Likely BenignLikely Benign0.093Likely Benign-1.10Neutral0.976Probably Damaging0.919Probably Damaging4.13Benign0.00Affected4.321-4-37.0-53.05
c.1221G>T
Q407H
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant Q407H is listed in ClinVar with an uncertain significance (ClinVar ID 2772184.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from REVEL and FATHMM, while pathogenic predictions are made by premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, and AlphaMissense‑Default. Predictions marked as uncertain include FoldX, Rosetta, Foldetta, and AlphaMissense‑Optimized. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM Consensus (derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as likely pathogenic, and Foldetta as uncertain. Overall, the preponderance of evidence points to a pathogenic effect for Q407H. This conclusion does not conflict with the ClinVar designation of uncertain significance, which remains unresolved pending further evidence.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicC2Uncertain 1-10.526Likely Pathogenic0.830Likely PathogenicAmbiguous0.206Likely Benign0.59Ambiguous0.00.61Ambiguous0.60Ambiguous1.10Destabilizing-4.51Deleterious0.982Probably Damaging0.947Probably Damaging3.88Benign0.01Affected3.3828030.39.01
c.1222A>G
T408A
2D
AISynGAP1 missense variant T408A is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools largely agree on a benign effect: REVEL, FoldX, Rosetta, Foldetta, polyPhen‑2 (HumVar), SIFT, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all predict benign. Pathogenic predictions come from PROVEAN, polyPhen‑2 (HumDiv), and ESM1b. The high‑accuracy AlphaMissense‑Optimized score is benign, while the SGM consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is inconclusive due to a 2‑to‑2 split. Foldetta, a protein‑folding stability method, also predicts benign. Overall, the balance of evidence favors a benign impact, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
C2Uncertain 1-8.304Likely Pathogenic0.114Likely BenignLikely Benign0.118Likely Benign0.37Likely Benign0.6-0.06Likely Benign0.16Likely Benign0.72Ambiguous-3.07Deleterious0.540Possibly Damaging0.131Benign4.16Benign0.14Tolerated102.5-30.03
c.1231A>G
I411V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant I411V is reported in ClinVar as benign (ClinVar ID 1654508.0) and is not found in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, PROVEAN, SIFT, ESM1b, FATHMM, AlphaMissense‑Optimized, and the SGM‑Consensus score (Likely Benign). Two tools predict a pathogenic outcome: PolyPhen‑2 HumDiv and PolyPhen‑2 HumVar. Predictions that are inconclusive or unavailable are AlphaMissense‑Default, FoldX, Rosetta, premPS, and Foldetta. High‑accuracy assessments further support a benign interpretation: AlphaMissense‑Optimized is benign, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Benign, and Foldetta (combining FoldX‑MD and Rosetta) is uncertain. Overall, the preponderance of evidence points to a benign effect for I411V, which is consistent with its ClinVar classification and does not contradict the reported status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPLikely Benign 1-6.290Likely Benign0.385AmbiguousLikely Benign0.212Likely Benign0.74Ambiguous0.00.82Ambiguous0.78Ambiguous0.99Ambiguous-0.86Neutral0.935Possibly Damaging0.858Possibly Damaging3.90Benign0.27Tolerated3.382843-0.3-14.03233.328.2-0.20.0-0.20.0XPotentially BenignThe sec-butyl side chain of Ile411, located in the hydrophobic space between an anti-parallel β sheet strand (res. Pro398-Ile411) and an α helix (res. Asp684-Gln702), packs against multiple residues (e.g., Met409, Arg259). In the variant simulations, the side chain of Val411 is able to favorably fill the same hydrophobic niche despite its slightly smaller size. In short, the residue swap has no apparent negative effect on the structure based on the simulations.
c.1240A>G
M414V
2D
AISynGAP1 M414V is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools show a split: benign calls come from REVEL, SIFT, FATHMM, and AlphaMissense‑Optimized; pathogenic calls come from PROVEAN, polyPhen‑2 (HumDiv and HumVar), and ESM1b; the remaining tools (FoldX, Rosetta, Foldetta, premPS, AlphaMissense‑Default) are inconclusive. The SGM consensus, which aggregates AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, yields a pathogenic majority. High‑accuracy assessments give AlphaMissense‑Optimized benign, SGM consensus pathogenic, and Foldetta uncertain. Because the high‑accuracy predictions are divided and the overall tool set is evenly split, there is no definitive evidence for pathogenicity or benignity. Thus, the variant is most likely inconclusive, and this lack of consensus does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 1-8.003Likely Pathogenic0.541AmbiguousLikely Benign0.261Likely Benign1.81Ambiguous0.41.73Ambiguous1.77Ambiguous0.95Ambiguous-2.95Deleterious0.999Probably Damaging0.987Probably Damaging3.43Benign0.24Tolerated212.3-32.06
c.1256A>G
E419G
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant E419G is listed in ClinVar with an uncertain significance (ClinVar ID 2004834.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from REVEL and FATHMM, while pathogenic predictions are made by PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. The SGM‑Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports the variant as likely pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized predicts pathogenic, SGM‑Consensus confirms likely pathogenic, and the Foldetta stability analysis is inconclusive. No evidence from FoldX, Rosetta, or premPS is available. Overall, the preponderance of predictions indicates that E419G is most likely pathogenic, which contrasts with the current ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-10.589Likely Pathogenic0.956Likely PathogenicLikely Pathogenic0.469Likely Benign1.41Ambiguous0.01.94Ambiguous1.68Ambiguous0.83Ambiguous-6.42Deleterious1.000Probably Damaging0.997Probably Damaging3.31Benign0.02Affected3.37290-23.1-72.06165.3110.80.00.0-0.10.0XPotentially PathogenicThe carboxylate group of Glu419, located on an α helix (res. Met414-Glu436), forms a salt bridge with the side chain of either Arg716 or Lys418 from an opposing helix (res. Pro713-Arg726). The backbone amide group of Glu419 does not form H-bonds, resulting in a slight bend in the α helix. Thus, although glycine is known as an “α helix breaker,” the residue swap does not disrupt the continuity or integrity of the α helix. However, because Gly419 cannot form a salt bridge with the guanidinium group of the Arg716 side chain, the C2-GAP domain tertiary structure could be compromised during folding.
c.1259T>C
F420S
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant F420S (ClinVar ID 981441.0) is reported as Pathogenic in ClinVar and is not present in gnomAD. Prediction tools largely agree on a deleterious effect: all listed predictors except FATHMM return a pathogenic or likely pathogenic call. The single benign prediction comes from FATHMM. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized predicts Pathogenic; the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) yields Likely Pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, also predicts Pathogenic. No predictions or folding‑stability results are missing or inconclusive. Based on the consensus of these tools, the variant is most likely pathogenic, consistent with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-13.231Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.544Likely Pathogenic5.34Destabilizing0.15.73Destabilizing5.54Destabilizing2.14Destabilizing-7.43Deleterious0.998Probably Damaging0.938Probably Damaging3.09Benign0.00Affected3.3729-3-2-3.6-60.10213.357.80.00.0-0.40.1XPotentially PathogenicIn the WT, the phenyl ring of the Phe420 side chain, located on an α helix (res. Met414-Glu436), packs against hydrophobic residues in the interhelix area of the GAP domain (e.g., Leu689, Leu714, Leu717, Leu718). Although no large-scale adverse effects are seen in the variant simulations, the polar hydroxyl group of Ser420 is not suitable for the hydrophobic inter-helix space. Thus, the residue swap could affect protein folding. In theory, the introduced hydroxyl group could also lower the α helix integrity by H-bonding with the backbone atoms of neighboring residues in the same α helix. However, no such effect is seen in the variant simulations.
c.1260T>G
F420L
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant F420L is listed in ClinVar (ID 1397885.0) with an “Uncertain” clinical significance and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, polyPhen‑2 (HumDiv and HumVar), SIFT, and FATHMM. Those that predict a pathogenic effect comprise premPS, PROVEAN, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). Stability‑based methods (FoldX, Rosetta, Foldetta) yield inconclusive results. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM Consensus also as pathogenic, while Foldetta remains uncertain. Overall, the majority of evidence points toward a pathogenic impact, which does not contradict the ClinVar “Uncertain” status but suggests the variant is more likely pathogenic rather than benign.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-8.432Likely Pathogenic0.998Likely PathogenicLikely Pathogenic0.146Likely Benign1.76Ambiguous0.01.41Ambiguous1.59Ambiguous1.04Destabilizing-5.39Deleterious0.009Benign0.005Benign4.22Benign0.39Tolerated3.3729201.0-34.02231.113.20.00.0-0.10.0XPotentially BenignIn the WT, the phenyl ring of the Phe420 side chain, located on an α helix (res. Met414-Glu436), packs against hydrophobic residues in the interhelix area of the GAP domain (e.g., Leu689, Leu714, Leu717, Leu718). In the variant simulations, the iso-butyl side chain of Leu420 also packs into the hydrophobic inter-helix niche, but due to its smaller size, the resulting steric interactions are not as favorable as with phenylalanine. In short, the residue swap does not cause severe effects on the protein structure based on the variant simulations.
c.1285C>T
R429W
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R429W is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33438190‑C‑T). Prediction tools that agree on a benign effect include REVEL, FoldX, Rosetta, Foldetta, FATHMM, and AlphaMissense‑Optimized, while pathogenic predictions come from PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, and ESM1b; premPS and AlphaMissense‑Default are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta as benign. Overall, the majority of predictions lean toward a benign impact, and this does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPConflicting 56-33438190-C-T654.03e-5-10.666Likely Pathogenic0.500AmbiguousLikely Benign0.282Likely Benign0.31Likely Benign0.1-0.13Likely Benign0.09Likely Benign0.52Ambiguous-3.19Deleterious1.000Probably Damaging0.990Probably Damaging3.41Benign0.03Affected3.38252-33.630.03252.345.50.00.00.20.1XPotentially PathogenicThe guanidinium group of Arg429, located in an α helix (res. Met414-Glu436), either forms a salt bridge with the carboxylate group of an acidic residue (Asp474, Asp467) or a H-bond with the hydroxyl group of Ser471 in an opposing α helix (res. Ala461-Phe476). In the variant simulations, the indole ring of the Trp429 side chain cannot form ionic interactions with the acidic residues. Although it forms a H-bond with Ser471, the bonding is not as strong as that of arginine. The residue swap could affect the tertiary structure assembly during folding; however, no large-scale negative effects were seen during the simulations.
c.1292T>C
L431P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L431P (ClinVar ID 661045.0) is reported as Pathogenic and is not present in gnomAD. Prediction tools that classify the variant as benign include only FATHMM. All other evaluated tools—SGM‑Consensus, REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized—predict it to be pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized predicts Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts Pathogenic. Based on the overwhelming consensus of pathogenic predictions and the ClinVar designation, the variant is most likely pathogenic, with no contradiction to its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-14.222Likely Pathogenic0.996Likely PathogenicLikely Pathogenic0.659Likely Pathogenic6.78Destabilizing0.311.59Destabilizing9.19Destabilizing2.29Destabilizing-6.39Deleterious1.000Probably Damaging0.998Probably Damaging2.91Benign0.05Affected3.3729-3-3-5.4-16.04222.462.80.10.00.10.0XPotentially PathogenicThe iso-butyl side chain of Leu431, located in an α helix (res. Met414-Glu436), packs against other hydrophobic residues in an interhelix space (e.g., Val434, Leu435, Leu696, Leu711) in the WT simulations. While the backbone amide group of Leu431 forms an H-bond with the carbonyl group of His427, the cyclic five-membered pyrrolidine ring of Pro431, lacking the necessary amide group, cannot do the same. Thus, although the cyclic five-membered pyrrolidine ring of Pro431 packs almost as favorably as the side chain of Leu431 in the hydrophobic niche, the residue swap causes the α helix to partially unfold in the variant simulations.
c.1300G>A
V434I
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant V434I (ClinVar ID 212346.0, status Uncertain) is present in gnomAD (ID 6‑33438205‑G‑A). Prediction tools that agree on a benign effect include REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are polyPhen‑2 HumDiv and polyPhen‑2 HumVar. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as Likely Benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as benign. No predictions or stability results are missing or inconclusive. Based on the collective evidence, the variant is most likely benign, which does not contradict the ClinVar status of Uncertain.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 16-33438205-G-A16.19e-7-6.999Likely Benign0.129Likely BenignLikely Benign0.192Likely Benign-0.04Likely Benign0.00.22Likely Benign0.09Likely Benign0.31Likely Benign-0.82Neutral0.947Possibly Damaging0.851Possibly Damaging3.53Benign0.18Tolerated3.3729430.314.03246.7-27.70.00.00.10.0XPotentially BenignThe iso-propyl side chain of Val434, located at the end of an α helix (res. Met414-Glu436), packs against hydrophobic residues in an interhelix space (e.g., Met430, Ala707, Leu711). In the variant simulations, the sec-butyl group of Ile434 is able to form the same hydrophobic interactions. Accordingly, the residue swap does not negatively affect the protein structure based on the simulations.
c.1304T>G
L435W
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant L435W is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that agree on a benign effect include only FATHMM. The majority of other in silico predictors (REVEL, FoldX, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized) classify the change as pathogenic, and the SGM‑Consensus score is “Likely Pathogenic.” High‑accuracy assessments further support a deleterious impact: AlphaMissense‑Optimized predicts pathogenicity, the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also indicates likely pathogenic, while Foldetta’s stability analysis is inconclusive. Overall, the computational evidence strongly favors a pathogenic effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.889Likely Pathogenic0.992Likely PathogenicLikely Pathogenic0.572Likely Pathogenic2.11Destabilizing0.10.69Ambiguous1.40Ambiguous1.66Destabilizing-5.63Deleterious1.000Probably Damaging0.998Probably Damaging3.15Benign0.00Affected3.3729-2-2-4.773.05242.2-25.20.00.00.30.1XPotentially PathogenicThe iso-butyl side chain of Leu435, located in an α helix (res. Met414-Glu436), packs against other hydrophobic residues in an interhelix space (e.g., Val699, Val447, Leu489, Leu439) in the WT simulations. In the variant simulations, the indole ring of Trp435 fits into the same niche despite its considerably bulkier size. Additionally, the side chain forms an H-bond with the backbone carbonyl of Leu696 in an α helix (res. Asp684-Gln702). Although no apparent negative changes are observed during the variant simulation, the size difference between the swapped residues could affect the protein folding process.
c.1306G>A
E436K
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant E436K is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that agree on a benign effect include only FATHMM, whereas the remaining evaluated algorithms (REVEL, Rosetta, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus) uniformly predict a pathogenic impact; FoldX, Foldetta, and premPS are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as likely pathogenic, and Foldetta as uncertain. Overall, the preponderance of evidence points to a pathogenic effect for E436K, which does not conflict with the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-13.869Likely Pathogenic0.997Likely PathogenicLikely Pathogenic0.829Likely Pathogenic0.56Ambiguous0.12.86Destabilizing1.71Ambiguous0.82Ambiguous-3.77Deleterious0.994Probably Damaging0.951Probably Damaging4.71Benign0.02Affected3.372901-0.4-0.94186.839.80.00.0-0.20.0XXXPotentially PathogenicThe carboxylate group of Glu436, located on the α helix (res. Met414-Glu436), forms a salt bridge with the amino group of the Lys444 side chain on an opposing α helix (res. Val441-Ser457). The backbone carbonyl of Glu436 also H-bonds with the Lys444 side chain, which helps keep the ends of the two α helices tightly connected. In contrast, in the variant simulations, the salt bridge formation with Lys444 is not possible. Instead, the repelled Lys436 side chain rotates outward, causing a change in the α helix backbone H-bonding: the amide group of Lys444 H-bonds with the carbonyl of Ala433 instead of the carbonyl of Cys432.
c.1312G>A
A438T
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant A438T is listed in ClinVar with an “Uncertain” status and is present in the gnomAD database (gnomAD ID 6‑33438217‑G‑A). Prediction tools that agree on a benign effect include REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool in the dataset predicts a pathogenic outcome. High‑accuracy assessments further support a benign classification: AlphaMissense‑Optimized is benign; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is “Likely Benign”; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, is benign. Based on the collective predictions, the variant is most likely benign, and this conclusion does not contradict the current ClinVar status of “Uncertain.”

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPConflicting 36-33438217-G-A169.91e-6-5.339Likely Benign0.085Likely BenignLikely Benign0.021Likely Benign0.21Likely Benign0.0-0.07Likely Benign0.07Likely Benign0.36Likely Benign-0.81Neutral0.300Benign0.011Benign4.18Benign0.14Tolerated3.382610-2.530.03214.2-42.7-0.30.1-0.40.1XPotentially BenignThe methyl group of Ala438, located in a four-residue loop connecting two α helices (res. Asn440-Thr458 and Pro413-Glu436), packs against hydrophobic residues from a nearby α helix or loop residues (e.g., Leu703, Val699). In the variant simulations, the methyl group of Thr438 is able to establish similar hydrophobic packing. Moreover, the hydroxyl group also H-bonds with nearby residues, such as the carbonyl group of the neighboring loop residue Pro437. Accordingly, the residue swap does not generate an apparent negative effect on the protein structure based on the simulations.
c.1322T>C
V441A
2D
3DClick to see structure in 3D Viewer
AISynGAP1 variant V441A is listed in ClinVar as uncertain and is present in gnomAD (ID 6‑33438227‑T‑C). Consensus from most in silico predictors favors a benign effect: REVEL, FoldX, Rosetta, Foldetta, polyPhen‑2 HumVar, SIFT, FATHMM, and AlphaMissense‑Optimized all report benign. Pathogenic predictions come from PROVEAN, polyPhen‑2 HumDiv, and ESM1b, while premPS and AlphaMissense‑Default remain uncertain. High‑accuracy assessments give a mixed picture: AlphaMissense‑Optimized predicts benign; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) yields pathogenic; Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, reports benign. Overall, the preponderance of evidence points to a benign impact, aligning with the ClinVar uncertain designation rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPConflicting 26-33438227-T-C31.86e-6-9.439Likely Pathogenic0.359AmbiguousLikely Benign0.053Likely Benign-0.14Likely Benign0.00.33Likely Benign0.10Likely Benign0.95Ambiguous-2.92Deleterious0.513Possibly Damaging0.214Benign3.44Benign0.93Tolerated3.372900-2.4-28.05195.044.60.00.10.50.0XXUncertainThe iso-propyl side chain of Val441, located on the outer surface of an α helix (res. Asn440-Thr458), does not interact with other residues in the WT simulations. In the variant simulations, the methyl side chain of Ala441 is similarly hydrophobic and does not form any interactions on the outer helix surface. Although the residue swap does not negatively affect the protein structure based on the simulations, it is noteworthy that the residue faces the RasGTPase interface. Thus, the effect of the residue swap on the SynGAP-Ras complex formation or GTPase activation cannot be fully addressed using the SynGAP solvent-only simulations.
c.1339G>C
V447L
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant V447L is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that classify the variant as benign include REVEL, Foldetta, premPS, PROVEAN, SIFT, ESM1b, FATHMM, AlphaMissense‑Optimized, and the SGM‑Consensus (Likely Benign). Tools that predict pathogenicity are polyPhen‑2 HumDiv and polyPhen‑2 HumVar. Uncertain results are reported by FoldX, Rosetta, and AlphaMissense‑Default. High‑accuracy assessments show AlphaMissense‑Optimized as Benign, the SGM‑Consensus as Likely Benign, and Foldetta as Benign. Overall, the majority of evidence points to a benign effect, and this consensus does not contradict the ClinVar “Uncertain” designation.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-5.136Likely Benign0.491AmbiguousLikely Benign0.180Likely Benign-1.13Ambiguous0.10.54Ambiguous-0.30Likely Benign0.03Likely Benign-0.29Neutral0.947Possibly Damaging0.851Possibly Damaging3.61Benign0.90Tolerated3.373212-0.414.03
c.1345A>G
S449G
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S449G is listed in ClinVar with an “Uncertain” status and is present in the gnomAD database (variant ID 6‑33438250‑A‑G). Prediction tools that agree on a benign effect include REVEL, FoldX, PROVEAN, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Only polyPhen‑2 HumDiv predicts a pathogenic outcome, while Rosetta, Foldetta, and premPS are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as “Likely Benign,” and Foldetta as uncertain. Overall, the majority of evidence points to a benign effect, and this conclusion does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 16-33438250-A-G31.86e-6-5.936Likely Benign0.071Likely BenignLikely Benign0.116Likely Benign0.47Likely Benign0.00.55Ambiguous0.51Ambiguous0.85Ambiguous-2.32Neutral0.948Possibly Damaging0.124Benign3.35Benign0.13Tolerated3.3732010.4-30.03
c.1349C>A
A450E
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant A450E is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that classify the variant as benign include SIFT and FATHMM, whereas the majority of tools predict it to be pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized is pathogenic; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is likely pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, also predicts pathogenicity. No predictions are inconclusive. Overall, the evidence strongly favors a pathogenic impact for A450E, which does not contradict the current ClinVar status of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-16.578Likely Pathogenic0.989Likely PathogenicLikely Pathogenic0.653Likely Pathogenic3.86Destabilizing0.25.23Destabilizing4.55Destabilizing1.59Destabilizing-4.67Deleterious0.999Probably Damaging0.992Probably Damaging3.38Benign0.07Tolerated3.37320-1-5.358.04240.1-82.60.00.00.70.0XXPotentially PathogenicThe methyl group of Ala450, located in an α helix (res. Asn440-Thr458), packs against hydrophobic residues in the inter-helix space (e.g., Leu692). In the variant simulations, the carboxylate group of the Glu450 side chain rotates outward, away from the hydrophobic niche, where it does not form any lasting salt bridges or H-bonds. Although the residue swap does not negatively affect the protein structure based on the simulations, it is possible that the introduction of the negatively charged residue adversely affects the folding process or tertiary assembly.
c.1352T>C
L451P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L451P is reported in ClinVar as Pathogenic (ClinVar ID 3064222.0) and is not found in gnomAD. Prediction tools that assess functional impact uniformly classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized predicts pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts pathogenic. Based on these predictions, the variant is most likely pathogenic, and this conclusion aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-14.549Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.750Likely Pathogenic6.92Destabilizing0.28.57Destabilizing7.75Destabilizing2.58Destabilizing-6.81Deleterious1.000Probably Damaging1.000Probably Damaging2.43Pathogenic0.00Affected3.3734-3-3-5.4-16.04
c.1354G>A
V452I
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant V452I is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, FoldX, Foldetta, premPS, PROVEAN, FATHMM, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are polyPhen‑2 (HumDiv and HumVar) and SIFT, while ESM1b also predicts pathogenicity. Uncertain predictions come from Rosetta and AlphaMissense‑Default. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as benign. Taken together, the majority of evidence points to a benign impact. This conclusion does not contradict the ClinVar “Uncertain” classification, which remains inconclusive.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 1-8.985Likely Pathogenic0.361AmbiguousLikely Benign0.218Likely Benign-0.08Likely Benign0.10.51Ambiguous0.22Likely Benign0.25Likely Benign-0.99Neutral0.947Possibly Damaging0.851Possibly Damaging3.26Benign0.05Affected430.314.03
c.1354G>T
V452F
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 V452F variant is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect are Rosetta and FATHMM, whereas the remaining tools (REVEL, FoldX, Foldetta, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus) all predict a pathogenic impact. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized scores the variant as pathogenic; the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, also predicts pathogenicity. Based on the preponderance of evidence, the variant is most likely pathogenic, a conclusion that contradicts its current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.769Likely Pathogenic0.975Likely PathogenicLikely Pathogenic0.511Likely Pathogenic9.21Destabilizing0.10.37Likely Benign4.79Destabilizing0.61Ambiguous-4.94Deleterious0.999Probably Damaging0.993Probably Damaging3.29Benign0.00Affected3.3734-1-1-1.448.04249.4-35.70.00.00.40.1XPotentially PathogenicThe iso-propyl side chain of Val452, located in the middle of an α helix (res. Val441-Ser457), packs against hydrophobic residues in the inter-helix space at the intersection of three α helices (e.g., Leu500, His453, Leu465). In the variant simulations, the larger side chain of Phe452 cannot pack against the opposing α helix (res. Leu489-Glu519) as efficiently as valine. Due to space restrictions, the phenol ring adjusts to make room by rotating slightly sideways in the inter-helix space. Besides this small and local shift, no large-scale effects on the protein structure are seen based on the simulations. However, the size difference between the swapped residues could affect the protein folding process.
c.1367A>C
Q456P
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant Q456P is listed in ClinVar with an uncertain significance (ClinVar ID 2697090.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from REVEL, SIFT, and FATHMM, whereas pathogenic predictions are made by FoldX, Rosetta, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, AlphaMissense‑Default, AlphaMissense‑Optimized, ESM1b, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN), and Foldetta. High‑accuracy methods specifically report pathogenicity: AlphaMissense‑Optimized predicts pathogenic, the SGM Consensus (majority vote) is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. No predictions are inconclusive. Overall, the preponderance of evidence indicates the variant is most likely pathogenic, which contradicts the current ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-15.250Likely Pathogenic0.993Likely PathogenicLikely Pathogenic0.469Likely Benign3.68Destabilizing0.28.43Destabilizing6.06Destabilizing0.82Ambiguous-5.66Deleterious1.000Probably Damaging0.999Probably Damaging3.34Benign0.07Tolerated3.3734-101.9-31.01
c.136C>T
P46S
2D
AIThe SynGAP1 missense variant P46S is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, PROVEAN, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. In contrast, polyPhen‑2 (HumDiv and HumVar) and SIFT all predict a pathogenic impact. The SGM‑Consensus, which aggregates the majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports the variant as “Likely Benign.” High‑accuracy assessments further support a benign classification: AlphaMissense‑Optimized predicts benign, and the SGM‑Consensus (majority vote) also indicates benign. The Foldetta protein‑folding stability analysis is unavailable for this variant. Overall, the majority of evidence—including high‑accuracy tools—points to a benign effect, and this conclusion does not contradict the ClinVar “Uncertain” designation.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 1-3.338Likely Benign0.302Likely BenignLikely Benign0.066Likely Benign-0.60Neutral0.909Possibly Damaging0.901Possibly Damaging4.15Benign0.00Affected1-10.8-10.04
c.1370G>A
S457N
2D
AIThe SynGAP1 missense variant S457N is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools show a split: benign predictions come from REVEL, FoldX, Rosetta, SIFT, and FATHMM, while pathogenic predictions arise from PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, and AlphaMissense‑Default. The high‑accuracy consensus methods give a mixed picture: AlphaMissense‑Optimized is inconclusive, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) favors pathogenicity, and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, predicts a benign effect. Overall, the majority of individual predictors lean toward pathogenicity, but the high‑accuracy Foldetta result suggests a benign impact. Thus, the variant is most likely pathogenic based on the preponderance of predictions, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-10.221Likely Pathogenic0.949Likely PathogenicAmbiguous0.241Likely Benign0.19Likely Benign0.0-0.22Likely Benign-0.02Likely Benign0.67Ambiguous-2.76Deleterious0.940Possibly Damaging0.843Possibly Damaging3.28Benign0.06Tolerated11-2.727.03
c.1390T>G
F464V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 F464V variant is listed in ClinVar with an “Uncertain” status (ClinVar ID 1716596.0) and is not reported in gnomAD. Prediction tools that agree on a benign effect include only FATHMM; all other evaluated algorithms (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized) predict a pathogenic impact, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also indicates likely pathogenic. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized is pathogenic, the SGM‑Consensus is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. Based on the collective predictions, the variant is most likely pathogenic, which does not contradict the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-12.254Likely Pathogenic0.994Likely PathogenicLikely Pathogenic0.592Likely Pathogenic3.61Destabilizing0.12.89Destabilizing3.25Destabilizing1.40Destabilizing-6.96Deleterious0.998Probably Damaging0.996Probably Damaging3.36Benign0.04Affected3.3734-1-11.4-48.04210.140.5-0.10.0-0.90.3XPotentially PathogenicThe phenyl ring of Phe464, located in the middle of an α helix (res. Ala461–Phe476), packs against hydrophobic residues (e.g., Met468, Leu451, Leu455, and Tyr428) in the inter-helix space formed with two other α helices (res. Asn440-Lys460 and res. Pro413-Glu436). The iso-propyl side chain of Val464 is similarly hydrophobic but considerably smaller than the original phenyl ring of Phe464. To compensate for the size difference, neighboring residues need to fill in the gap in the variant simulations.The phenolic side chain of Tyr428, located at the middle bend of an α helix (res. Glu436-Pro413), assumes a new position in the inter-helix space or rotates inward next to the third α helix (res. Asn440-Lys460) when the stable H-bond between Tyr428 and Asp467 seen in the WT simulations breaks. The residue swap also leads to the loss of the methionine-aromatic interaction between the Met468 and Phe464 side chains, which could weaken the integrity of the parent α helix (res. Ala461-Phe476). Although the simulations likely underestimate the full adverse effect of the introduced mutation during folding, the two opposing α helices (res. Ala461–Phe476 and res. Glu436-Pro413) move substantially closer to each other in the variant simulations.
c.1393C>G
L465V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L465V is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools cluster into two groups: benign predictions come from REVEL and SIFT, while the remaining tools—FoldX, Rosetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, and AlphaMissense‑Default—indicate pathogenicity. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized is uncertain; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports likely pathogenic; and Foldetta, which combines FoldX‑MD and Rosetta stability outputs, predicts pathogenic. Overall, the majority of evidence points to a pathogenic impact, which is consistent with the ClinVar uncertain status and does not contradict it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.893Likely Pathogenic0.838Likely PathogenicAmbiguous0.276Likely Benign2.46Destabilizing0.12.66Destabilizing2.56Destabilizing1.21Destabilizing-2.98Deleterious0.996Probably Damaging0.992Probably Damaging2.44Pathogenic0.10Tolerated3.3734210.4-14.03204.330.90.00.0-0.40.6XPotentially BenignThe iso-butyl side chain of Leu465, located in the middle of an α helix (res. Ala461–Phe476), packs with hydrophobic residues (e.g., Phe464, Met468, Tyr497, Ile494) in an inter-helix space formed with two other α helices (res. Ala461–Phe476 and res. Thr488-Gly502). In the variant simulations, the iso-propyl side chain of Val465 is equally sized and similarly hydrophobic as the original side chain of Leu465. Hence, the mutation does not exert any negative effects on the protein structure based on the variant simulations.
c.1394T>C
L465P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L465P is listed in ClinVar as Pathogenic (ClinVar ID 1067821.0) and is not reported in gnomAD. Prediction tools that assess functional impact uniformly classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized predicts pathogenicity; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) also predicts pathogenicity. Based on the unanimous computational evidence, the variant is most likely pathogenic, and this conclusion aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-14.824Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.778Likely Pathogenic7.18Destabilizing0.310.85Destabilizing9.02Destabilizing2.73Destabilizing-6.96Deleterious1.000Probably Damaging1.000Probably Damaging2.29Pathogenic0.00Affected3.3734-3-3-5.4-16.04211.165.90.10.0-0.20.0XPotentially PathogenicThe iso-butyl side chain of Leu465, located in the middle of an α helix (res. Ala461–Phe476), packs with hydrophobic residues (e.g., Phe464, Met468, Tyr497, Ile494) in an inter-helix space formed with two other α helices (res. Ala461–Phe476 and res. Thr488-Gly502). In the variant simulations, the cyclic five-membered pyrrolidine ring of Pro465 is not as optimal as the side chain of Leu465 for filling the three α helix hydrophobic niche. Although the residue swap does not cause a large-scale conformational shift during the simulations, the H-bond between the backbone amide group of Leu465 and the backbone carbonyl group of Ala461 is lost. This, in turn, breaks the continuity of the α helix secondary structure element.
c.13C>G
R5G
2D
AIThe SynGAP1 missense variant R5G is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that indicate a benign effect include REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (Likely Benign). Only SIFT predicts a pathogenic outcome. High‑accuracy assessments show AlphaMissense‑Optimized as benign and the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also as benign; Foldetta results are unavailable. Overall, the majority of evidence points to a benign impact, and this conclusion does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 1-3.639Likely Benign0.150Likely BenignLikely Benign0.169Likely Benign-0.16Neutral0.013Benign0.003Benign4.12Benign0.00Affected4.321-2-34.1-99.14
c.1402A>G
M468V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant M468V is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from PROVEAN, SIFT, and AlphaMissense‑Optimized, while pathogenic predictions are made by REVEL, FoldX, Rosetta, Foldetta, polyPhen‑2 (HumDiv and HumVar), ESM1b, and FATHMM. The remaining tools, premPS and AlphaMissense‑Default, return uncertain results. High‑accuracy assessments further clarify the variant’s impact: AlphaMissense‑Optimized predicts a benign effect; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, indicates pathogenicity; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, also classifies the variant as pathogenic. Overall, the preponderance of evidence points to a pathogenic effect, which does not contradict the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 1-9.461Likely Pathogenic0.361AmbiguousLikely Benign0.570Likely Pathogenic2.69Destabilizing0.12.20Destabilizing2.45Destabilizing0.89Ambiguous-1.66Neutral0.998Probably Damaging0.993Probably Damaging-1.21Pathogenic0.08Tolerated3.3731122.3-32.06
c.1403T>A
M468K
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant M468K is listed in ClinVar (ID 642691.0) as Pathogenic and is not reported in gnomAD. All available in silico predictors classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments confirm this: AlphaMissense‑Optimized predicts pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) yields Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts pathogenic. Thus, the variant is most likely pathogenic, and this prediction aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-16.982Likely Pathogenic0.978Likely PathogenicLikely Pathogenic0.828Likely Pathogenic3.21Destabilizing0.13.30Destabilizing3.26Destabilizing2.57Destabilizing-4.61Deleterious0.878Possibly Damaging0.922Probably Damaging-1.34Pathogenic0.04Affected3.37310-1-5.8-3.02188.769.30.00.0-0.10.2XXPotentially PathogenicThe thioether group of Met468, located in the middle of an α helix (res. Ala461–Phe476), interacts with hydrophobic residues (e.g., Phe464, Leu465, Leu489) in an inter-helix space formed by two other α helices (res. Ala461–Phe476, res. Thr488–Gly502). In the variant simulations, the positively charged side chain of Lys468 rotates outward to escape the hydrophobic niche, forming an H-bond with the hydroxyl group of the Ser471 side chain and a salt bridge with the carboxylate group of the Glu472 side chain. This residue swap also disrupts the methionine-aromatic stacking with the phenyl ring of the Phe464 side chain. Although no large-scale structural changes are observed during the variant simulations, the importance of hydrophobic packing suggests that the effects could be more pronounced during protein folding.
c.1404G>A
M468I
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant M468I is listed in ClinVar with an uncertain significance (ClinVar ID 3657719.0) and is present in gnomAD (6‑33438436‑G‑A). Functional prediction tools cluster into two groups: benign predictions come from premPS, PROVEAN, and SIFT, while pathogenic predictions arise from REVEL, FoldX, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, and AlphaMissense‑Default. Two tools report uncertainty: AlphaMissense‑Optimized and Rosetta. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized is inconclusive, SGM Consensus is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. Overall, the preponderance of evidence indicates a pathogenic impact for M468I, which does not contradict the ClinVar uncertain status but suggests a likely pathogenic classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33438436-G-A16.20e-7-8.583Likely Pathogenic0.907Likely PathogenicAmbiguous0.508Likely Pathogenic2.53Destabilizing0.21.89Ambiguous2.21Destabilizing0.37Likely Benign-1.06Neutral0.748Possibly Damaging0.886Possibly Damaging-1.10Pathogenic0.07Tolerated3.3731122.6-18.03
c.1405G>A
A469T
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant A469T is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from premPS, PROVEAN, SIFT, and AlphaMissense‑Optimized; pathogenic predictions arise from REVEL, FoldX, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN), and the Foldetta stability assessment (combining FoldX‑MD and Rosetta). The high‑accuracy subset shows AlphaMissense‑Optimized as benign, whereas SGM Consensus and Foldetta both predict pathogenic. Overall, the majority of evidence supports a pathogenic effect, and this conclusion does not conflict with the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.540Likely Pathogenic0.723Likely PathogenicLikely Benign0.527Likely Pathogenic2.26Destabilizing0.11.90Ambiguous2.08Destabilizing0.34Likely Benign-1.46Neutral0.994Probably Damaging0.986Probably Damaging-1.21Pathogenic0.42Tolerated10-2.530.03
c.1406C>A
A469D
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant A469D is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that assess the variant’s effect fall into two groups: the single benign prediction from SIFT, and a consensus of pathogenic predictions from the remaining 15 tools (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM Consensus). High‑accuracy methods further support a deleterious impact: AlphaMissense‑Optimized predicts pathogenic, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) also indicates pathogenic. Taken together, the overwhelming majority of evidence points to a pathogenic effect, which is consistent with the ClinVar uncertain status rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.643Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.738Likely Pathogenic5.09Destabilizing0.24.16Destabilizing4.63Destabilizing1.68Destabilizing-3.48Deleterious0.999Probably Damaging0.996Probably Damaging-1.34Pathogenic0.21Tolerated3.37340-2-5.344.01237.0-58.2-0.20.10.80.1XXPotentially PathogenicThe methyl group of Ala469, located in an α helix (res. Ala461–Phe476), interacts with hydrophobic residues (e.g., Trp572, Leu588, Met470) in an inter-helix space formed by two other α helices (res. Glu582–Ser604, res. Arg563–Gly580). In the variant simulations, Asp469 introduces a negatively charged and bulky side chain into the hydrophobic niche. Consequently, the side chain of Asp469 rotates outward, allowing the carboxylate group to form a salt bridge with the guanidinium group of Arg575 on the protein surface. This interaction affects the continuity of the parent α helix (Ala461–Phe476). Due to the importance of hydrophobic packing, the structural effects could be more pronounced during actual protein folding.
c.1408A>C
M470L
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant M470L is listed in ClinVar as benign (ClinVar ID 536996.0) and is present in gnomAD (variant ID 6‑33438440‑A‑C). Functional prediction tools cluster into two groups: benign predictions come from SIFT and AlphaMissense‑Optimized, while pathogenic predictions are made by REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, and FATHMM. The SGM Consensus, which aggregates AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports the variant as likely pathogenic. High‑accuracy assessments further show AlphaMissense‑Optimized as benign, SGM Consensus as likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as uncertain. No definitive folding‑stability change is reported by FoldX or Rosetta individually. Overall, the majority of predictive algorithms favor a pathogenic effect, directly contradicting the benign classification in ClinVar.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Benign 16-33438440-A-C16.20e-7-8.993Likely Pathogenic0.406AmbiguousLikely Benign0.678Likely Pathogenic0.73Ambiguous0.10.84Ambiguous0.79Ambiguous1.04Destabilizing-2.72Deleterious0.484Possibly Damaging0.654Possibly Damaging-1.22Pathogenic0.16Tolerated3.3734421.9-18.03225.317.90.00.0-0.80.5XPotentially BenignThe thioether group of Met470, located in the middle of an α helix (res. Ala461–Phe476), interacts with hydrophobic residues in the inter-helix space (e.g., Val473, Leu558) formed by two other α helices (res. Ser604–Arg581, res. Pro562–Arg579). In the WT simulations, Met470 also packs against the positively charged guanidinium groups of Arg575, Arg429, and Arg579, which form salt bridges with the negatively charged carboxylate groups of the Asp474 and Asp467 side chains at the protein surface. In the variant simulations, the iso-butyl side chain of Leu470 packs similarly with the hydrophobic residues as methionine, resulting in no negative effects on the protein structure during the simulation.
c.1408A>G
M470V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant M470V is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Consensus from most in silico predictors indicates a pathogenic effect: SGM‑Consensus, REVEL, FoldX, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, and FATHMM all score it as deleterious. Only two tools—SIFT and AlphaMissense‑Optimized—classify it as benign, while Rosetta and AlphaMissense‑Default remain inconclusive. High‑accuracy assessments reinforce the pathogenic prediction: AlphaMissense‑Optimized reports a benign outcome, but the SGM‑Consensus (derived from a majority of pathogenic calls among AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) and Foldetta (combining pathogenic FoldX with uncertain Rosetta) both predict pathogenicity. Overall, the preponderance of evidence supports a likely pathogenic classification, which does not conflict with the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-8.856Likely Pathogenic0.478AmbiguousLikely Benign0.770Likely Pathogenic2.73Destabilizing0.11.88Ambiguous2.31Destabilizing1.31Destabilizing-3.58Deleterious0.999Probably Damaging0.993Probably Damaging-1.20Pathogenic0.15Tolerated3.3734122.3-32.06
c.1409T>C
M470T
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant M470T is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include only SIFT, whereas the remaining tools—REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN)—all predict a pathogenic impact. High‑accuracy methods further support this: AlphaMissense‑Optimized is pathogenic, the SGM‑Consensus is “Likely Pathogenic,” and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. No prediction or folding‑stability result is missing or inconclusive. Based on the overwhelming consensus of pathogenic predictions, the variant is most likely pathogenic, which is consistent with the ClinVar “Uncertain” classification rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-8.104Likely Pathogenic0.976Likely PathogenicLikely Pathogenic0.763Likely Pathogenic3.19Destabilizing0.12.68Destabilizing2.94Destabilizing1.49Destabilizing-5.30Deleterious0.996Probably Damaging0.985Probably Damaging-1.08Pathogenic0.24Tolerated3.3734-1-1-2.6-30.09213.846.50.00.0-0.20.2XXPotentially PathogenicThe thioether group of Met470, located in the middle of an α helix (res. Ala461–Phe476), interacts with hydrophobic residues in the inter-helix space (e.g., Val473, Leu558, Cys576, Trp572) formed by two other α helices (res. Ser604–Arg581, res. Pro562–Arg579). In the WT simulations, the Met470 side chain also packs against the positively charged guanidinium groups of Arg575, Arg429, and Arg579, which form salt bridges with the negatively charged carboxylate groups of the Asp474 and Asp467 side chains at the protein surface. In the variant simulations, the hydroxyl group of the Thr470 side chain forms an H-bond with the backbone carbonyl group of Ser466 in the α helix, potentially lowering its structural integrity. Importantly, the hydroxyl group of Thr470 also forms an H-bond with the guanidinium group of Arg575, which helps it form a more permanent salt bridge with Asp467.
c.140G>A
R47Q
2D
AIThe SynGAP1 missense variant R47Q is listed in ClinVar (ID 436920.0) as Benign and is present in gnomAD (6‑33423549‑G‑A). Prediction tools that agree on a benign effect include REVEL, PROVEAN, ESM1b, FATHMM, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). Tools that predict a pathogenic effect are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and SIFT. AlphaMissense‑Default is uncertain, and Foldetta results are unavailable. High‑accuracy assessments show AlphaMissense‑Optimized as Benign, the SGM‑Consensus as Benign, and no Foldetta data to influence the conclusion. Overall, the majority of evidence points to a benign impact, consistent with the ClinVar classification; there is no contradiction with the reported ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignLikely Benign 16-33423549-G-A42.48e-6-4.989Likely Benign0.347AmbiguousLikely Benign0.096Likely Benign-0.57Neutral0.829Possibly Damaging0.614Possibly Damaging4.12Benign0.00Affected4.321111.0-28.0610.1016/j.ajhg.2020.11.011
c.1417G>A
V473I
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant V473I is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33438449‑G‑A). Functional prediction tools that agree on benign impact include REVEL, FoldX, premPS, PROVEAN, SIFT, FATHMM, and AlphaMissense‑Optimized. Pathogenic predictions are provided by both polyPhen‑2 HumDiv and HumVar. Predictions that are inconclusive are AlphaMissense‑Default, ESM1b, Foldetta, and Rosetta. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is unavailable due to no majority, and Foldetta is uncertain. Overall, the balance of evidence favors a benign effect for V473I, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 16-33438449-G-A16.20e-7-7.481In-Between0.418AmbiguousLikely Benign0.203Likely Benign-0.12Likely Benign0.01.20Ambiguous0.54Ambiguous-0.06Likely Benign-0.91Neutral0.929Possibly Damaging0.917Probably Damaging3.74Benign0.18Tolerated3.3734340.314.03
c.1423C>T
R475W
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R475W is listed in ClinVar with an “Uncertain” status and is present in gnomAD (variant ID 6‑33438455‑C‑T). Prediction tools that agree on a benign effect include only Foldetta, whereas the remaining tools (REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM Consensus) uniformly predict a pathogenic impact; FoldX, Rosetta, and premPS are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM Consensus as likely pathogenic, and Foldetta as benign. Overall, the majority of evidence points to a pathogenic effect, which does not contradict the ClinVar “Uncertain” classification but suggests that the variant is more likely pathogenic rather than benign.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33438455-C-T16.20e-7-13.235Likely Pathogenic0.962Likely PathogenicLikely Pathogenic0.725Likely Pathogenic1.44Ambiguous0.4-0.92Ambiguous0.26Likely Benign0.56Ambiguous-7.56Deleterious1.000Probably Damaging0.995Probably Damaging-1.45Pathogenic0.00Affected3.39282-33.630.03266.939.60.00.00.00.1XXXPotentially PathogenicIn the WT simulations, the guanidinium group of Arg475, located near the end of an α-helix (res. Ala461-Phe476), stacks with the phenyl ring of Phe476 and forms a salt bridge with Glu472. Additionally, Arg475 occasionally forms another salt bridge with the carboxylate group of Glu486 on the α-α loop connecting the two α-helices (res. Ala461-Phe476 and Leu489-Glu519) at the GAP-Ras interface. Therefore, Arg475 potentially plays a key role in positioning the loop by interacting with Glu486, which is necessary for the positioning of the “arginine finger” (Arg485) and, ultimately, for RasGTPase activation.In the variant simulations, Trp475 moves and stacks with Arg479 on the proceeding α-α loop, disrupting the terminal end of the α-helix. Lastly, the potential effect of the residue swap on the SynGAP-Ras complex formation or GTPase activation cannot be fully addressed using the SynGAP solvent-only simulations.
c.1436G>A
R479Q
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R479Q is listed in ClinVar with an “Uncertain” significance and is present in gnomAD (variant ID 6‑33438468‑G‑A). Prediction tools that agree on a benign effect include REVEL, premPS, PROVEAN, SIFT, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (Likely Benign). In contrast, polyPhen‑2 HumDiv and HumVar both predict a pathogenic impact. Uncertain or inconclusive results come from FoldX, Rosetta, Foldetta, and ESM1b. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus also as likely benign, while Foldetta remains uncertain. Overall, the majority of evidence points to a benign effect, and this consensus does not contradict the ClinVar “Uncertain” status; thus the variant is most likely benign based on current predictions.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 16-33438468-G-A74.34e-6-7.109In-Between0.259Likely BenignLikely Benign0.191Likely Benign0.54Ambiguous0.10.57Ambiguous0.56Ambiguous0.49Likely Benign-1.16Neutral1.000Probably Damaging0.991Probably Damaging3.42Benign0.31Tolerated3.3932111.0-28.06
c.1436G>C
R479P
2D
3DClick to see structure in 3D Viewer
AIClinVar lists the SynGAP1 R479P variant as Uncertain, and it is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, SIFT, and FATHMM. Those that predict a pathogenic effect are FoldX, Rosetta, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, AlphaMissense‑Default, and ESM1b. Predictions that are inconclusive are AlphaMissense‑Optimized and premPS. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta) as pathogenic. Overall, the majority of tools and the high‑accuracy methods support a pathogenic classification, which is in contrast to the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-11.795Likely Pathogenic0.938Likely PathogenicAmbiguous0.277Likely Benign2.86Destabilizing0.23.88Destabilizing3.37Destabilizing0.81Ambiguous-3.52Deleterious1.000Probably Damaging1.000Probably Damaging3.41Benign0.18Tolerated0-22.9-59.07
c.1441C>T
H481Y
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant H481Y is listed in ClinVar as benign (ClinVar ID 1543764.0) and is present in the gnomAD database (gnomAD ID 6‑33438473‑C‑T). Prediction tools that classify the variant as benign include REVEL, Rosetta, premPS, SIFT, FATHMM, and AlphaMissense‑Optimized. Those that predict pathogenicity are PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, and AlphaMissense‑Default. FoldX and Foldetta report uncertain stability effects. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as likely pathogenic, and Foldetta as uncertain. Taking all available evidence together, the variant is most likely benign, which is consistent with its ClinVar benign annotation.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Benign 16-33438473-C-T169.91e-6-10.910Likely Pathogenic0.565Likely PathogenicLikely Benign0.256Likely Benign-0.53Ambiguous0.1-0.46Likely Benign-0.50Ambiguous0.20Likely Benign-3.32Deleterious0.988Probably Damaging0.979Probably Damaging3.40Benign0.59Tolerated3.3733021.926.03256.5-44.40.00.00.20.2XXUncertainThe imidazole ring of the His481 side chain is located in a short helical structure (res. Glu480-Leu482) within an α-α loop connecting the two α-helices (res. Ala461-Phe476 and Leu489-Glu519) at the GAP-Ras interface. In the WT simulations, His481 alternately stacks against Arg485, Arg587, and Glu480 without a definite role. In the variant simulations, Tyr481 also alternately stacks with nearby arginine residues, including Arg485, Arg587, and Arg479. The interaction between Tyr481 and Arg479 affects the α-α loop, causing it to fold into a distorted helical structure, an effect that might be more pronounced during protein folding. Finally, the potential effect of the residue swap on SynGAP-Ras complex formation or GTPase activation cannot be fully addressed using the SynGAP solvent-only simulations.
c.1447A>G
I483V
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant I483V is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools show mixed results: benign predictions come from REVEL, Rosetta, PROVEAN, FATHMM, and AlphaMissense‑Optimized, while pathogenic predictions are reported by premPS, polyPhen‑2 (HumDiv and HumVar), SIFT, and ESM1b. Predictions marked as uncertain include FoldX, Foldetta, and AlphaMissense‑Default. High‑accuracy assessments further support a benign interpretation: AlphaMissense‑Optimized predicts benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also yields benign, whereas Foldetta remains uncertain. Overall, the balance of evidence from both general and high‑accuracy tools leans toward a benign effect, which does not contradict the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPConflicting 2-10.121Likely Pathogenic0.523AmbiguousLikely Benign0.228Likely Benign1.00Ambiguous0.00.27Likely Benign0.64Ambiguous1.02Destabilizing-0.86Neutral0.914Possibly Damaging0.921Probably Damaging3.23Benign0.03Affected3.373234-0.3-14.03
c.1453C>A
R485S
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R485S is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include only FoldX, which scores the variant as benign. In contrast, the majority of tools predict a pathogenic impact: REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (which is a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN). Tools that return uncertain results are Rosetta, Foldetta, and premPS. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM‑Consensus as likely pathogenic, and Foldetta as inconclusive. Overall, the preponderance of evidence points to a pathogenic effect for R485S, which is consistent with the ClinVar “Uncertain” classification rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-15.603Likely Pathogenic0.998Likely PathogenicLikely Pathogenic0.609Likely Pathogenic0.40Likely Benign0.11.07Ambiguous0.74Ambiguous0.82Ambiguous-5.97Deleterious1.000Probably Damaging1.000Probably Damaging1.93Pathogenic0.00Affected0-13.7-69.11
c.1454G>A
R485H
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 R485H missense variant is listed in ClinVar as Benign (ClinVar ID 3707943.0) and is present in the gnomAD database (gnomAD ID 6‑33438486‑G‑A). Functional prediction tools that agree on a benign effect are Rosetta and Foldetta, while the majority of tools (REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default) predict a pathogenic impact. High‑accuracy assessments show AlphaMissense‑Optimized as Uncertain, SGM Consensus (derived from the unanimous pathogenic vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as Pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as Benign. Overall, the preponderance of evidence points to a pathogenic effect, which contradicts the ClinVar benign classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Benign 16-33438486-G-A138.05e-6-13.628Likely Pathogenic0.948Likely PathogenicAmbiguous0.618Likely Pathogenic0.77Ambiguous0.10.12Likely Benign0.45Likely Benign1.13Destabilizing-4.97Deleterious1.000Probably Damaging0.998Probably Damaging1.93Pathogenic0.00Affected3.3735021.3-19.05
c.1456G>A
E486K
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant E486K is listed in ClinVar with an uncertain significance status and is not reported in gnomAD. Functional prediction tools show mixed results: benign predictions come from REVEL, FoldX, Rosetta, Foldetta, premPS, SIFT, and FATHMM, whereas pathogenic predictions are reported by PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, and AlphaMissense‑Default. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized predicts pathogenic, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates likely pathogenic, and the Foldetta stability analysis (combining FoldX‑MD and Rosetta) predicts benign. Overall, the majority of high‑confidence tools and the consensus analysis favor a pathogenic interpretation, which contrasts with the ClinVar uncertain designation.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.545Likely Pathogenic0.988Likely PathogenicLikely Pathogenic0.435Likely Benign0.06Likely Benign0.10.37Likely Benign0.22Likely Benign0.41Likely Benign-3.58Deleterious1.000Probably Damaging0.988Probably Damaging3.40Benign0.12Tolerated3.373501-0.4-0.94206.852.1-0.30.10.20.0XXUncertainGlu486 is located in an α-α loop connecting the two α-helices (res. Ala461-Phe476 and Leu489-Glu519) at the GAP-Ras interface. It is adjacent to the arginine finger (Arg485) and is expected to closely interact with Ras. The residue swap could affect complex formation with the GTPase and its activation. In the WT simulations, the carboxylate group of Glu486 forms salt bridges with Arg485 and Arg475 on the preceding α-helix (res. Ala461-Phe476). In the variant simulations, Lys486 does not form any specific interactions. Although the amino group of the Lys486 side chain cannot form these salt bridges, no negative effects on the protein structure are observed. Nevertheless, the potential role of Glu486 in SynGAP-Ras complex formation or GTPase activation cannot be fully addressed using the SynGAP solvent-only simulations, and no definite conclusions can be drawn.
c.1463C>T
T488M
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant T488M is listed in ClinVar with an uncertain significance (ClinVar ID 2824521.0) and is present in gnomAD (ID 6‑33438495‑C‑T). Prediction tools that indicate a benign effect include premPS and FATHMM, whereas the majority of algorithms predict a pathogenic outcome: REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM‑Consensus as likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta) as inconclusive. No other tools provide definitive evidence. Based on the preponderance of pathogenic predictions, the variant is most likely pathogenic, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33438495-C-T21.24e-6-12.459Likely Pathogenic0.973Likely PathogenicLikely Pathogenic0.746Likely Pathogenic0.66Ambiguous0.31.62Ambiguous1.14Ambiguous0.46Likely Benign-5.70Deleterious1.000Probably Damaging0.999Probably Damaging3.21Benign0.00Affected3.3735-1-12.630.09
c.1466T>C
L489P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L489P is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. All evaluated in‑silico predictors classify the change as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized predicts pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) reports “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, also predicts pathogenic. Overall, the variant is most likely pathogenic based on the consensus of predictive tools, a conclusion that contradicts the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 2-13.520Likely Pathogenic0.997Likely PathogenicLikely Pathogenic0.939Likely Pathogenic2.50Destabilizing0.14.69Destabilizing3.60Destabilizing1.73Destabilizing-6.74Deleterious1.000Probably Damaging1.000Probably Damaging-1.56Pathogenic0.00Affected3.3735-3-3-5.4-16.04209.961.90.10.00.60.1XPotentially PathogenicThe iso-butyl side chain of Leu489, located in the α-helix (res. Leu489-Glu519) within an inter-helix space of four helices (res. Ala461-Phe476, res. Val441-Ser457, and res. Met414-Glu436), packs with hydrophobic residues (e.g., Cys432, Ala448, Lys444, Ala493, Val447, Met468). In the variant simulations, Pro489 is located near the beginning of the α-helix, so the residue swap with Leu489 does not affect the continuity of the secondary structure element. However, the side chain of proline is not as optimal as that of leucine for maintaining hydrophobic packing with nearby residues (e.g., Ala448, Lys444). Additionally, the consistently maintained hydrogen bond interaction between the backbone amide group of Leu489 and the carbonyl of Glu436 is lost due to the residue swap, potentially affecting the tertiary structure integrity.
c.1468G>C
A490P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant A490P is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Among the available in‑silico predictors, 10 tools (REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus) uniformly predict a pathogenic effect, whereas only Foldetta predicts a benign outcome; FoldX, Rosetta, and AlphaMissense‑Optimized are inconclusive. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized is uncertain, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta stability outputs) is benign. Overall, the preponderance of evidence indicates that the variant is most likely pathogenic, which does not contradict the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-12.905Likely Pathogenic0.941Likely PathogenicAmbiguous0.878Likely Pathogenic-1.27Ambiguous0.11.31Ambiguous0.02Likely Benign1.07Destabilizing-4.81Deleterious1.000Probably Damaging0.998Probably Damaging-1.42Pathogenic0.01Affected3.3735-11-3.426.04
c.1474A>G
K492E
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant K492E is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that classify the variant as benign include only FATHMM. The remaining tools—REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus—predict it to be pathogenic or likely pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized scores it as pathogenic, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) reports it as likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is inconclusive. Overall, the preponderance of evidence indicates that the variant is most likely pathogenic, which contradicts its current ClinVar status of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 2-16.175Likely Pathogenic0.998Likely PathogenicLikely Pathogenic0.510Likely Pathogenic1.53Ambiguous0.11.90Ambiguous1.72Ambiguous1.42Destabilizing-3.98Deleterious1.000Probably Damaging0.998Probably Damaging2.99Benign0.01Affected3.3735100.40.94
c.1480A>G
I494V
2D
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AISynGAP1 missense variant I494V is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33438512‑A‑G). Functional prediction tools that agree on benign impact include REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, AlphaMissense‑Default, and AlphaMissense‑Optimized. Pathogenic predictions come from premPS and FATHMM. Predictions that are inconclusive are FoldX, Rosetta, Foldetta, and ESM1b. High‑accuracy assessments show AlphaMissense‑Optimized as benign; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also yields benign; Foldetta remains uncertain. Overall, the majority of evidence supports a benign effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPConflicting 26-33438512-A-G362.23e-5-7.102In-Between0.112Likely BenignLikely Benign0.439Likely Benign1.16Ambiguous0.00.71Ambiguous0.94Ambiguous1.02Destabilizing-0.83Neutral0.278Benign0.179Benign-1.30Pathogenic0.07Tolerated3.373543-0.3-14.03248.629.30.00.0-1.10.5XPotentially BenignThe sec-butyl side chain of Ile494, located in an α-helix (res. Leu489-Glu519), packs against hydrophobic residues (e.g., Phe484, Leu465, Trp572, Ala493, Met468) in an inter-helix space (res. Leu489-Glu519 and res. Ala461-Phe476). In the variant simulations, the hydrophobic iso-propyl side chain of Val494, which is of a similar size and has similar physicochemical properties to Ile494 in the WT, resides similarly in the inter-helix hydrophobic space. Thus, no negative effects on the protein structure are observed.
c.1481T>G
I494R
2D
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AIThe SynGAP1 missense variant I494R is listed in ClinVar as Pathogenic (ClinVar ID 1685460.0) and is not reported in gnomAD. Prediction tools that assess functional impact all converge on a pathogenic outcome: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all indicate pathogenicity. No tool predicts a benign effect. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. Thus, the variant is most likely pathogenic, and this prediction aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-15.758Likely Pathogenic0.995Likely PathogenicLikely Pathogenic0.911Likely Pathogenic6.71Destabilizing0.33.40Destabilizing5.06Destabilizing2.19Destabilizing-6.43Deleterious0.999Probably Damaging0.957Probably Damaging-1.41Pathogenic0.00Affected3.3735-2-3-9.043.03273.9-59.80.00.00.00.1XXXXPotentially PathogenicThe sec-butyl side chain of Ile494, located in an α-helix (res. Leu489-Glu519), packs against hydrophobic residues (e.g., Phe484, Leu465, Trp572, Ala493, Met468) in an inter-helix space (res. Leu489-Glu519 and res. Ala461-Phe476). In the variant simulations, the bulkier and positively charged residue, Arg494, weakens the integrity of the opposing helix. Additionally, the bulkier Arg494 stacks with Phe484, causing the α-helices to move farther apart to accommodate it. This mutation could have substantial negative effects due to the fundamental role of hydrophobic packing, which is disrupted by Arg494 during protein folding.
c.1483G>A
E495K
2D
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AIThe SynGAP1 missense variant E495K is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include FoldX and Foldetta, whereas the majority of tools predict a pathogenic impact: REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (which is a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN). Tools with inconclusive results (Rosetta and premPS) are treated as unavailable. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM‑Consensus also as pathogenic, while Foldetta (a protein‑folding stability method combining FoldX‑MD and Rosetta outputs) indicates a benign effect. Overall, the preponderance of evidence from standard and high‑accuracy predictors points to a pathogenic effect for E495K, which is not in conflict with the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-11.478Likely Pathogenic0.986Likely PathogenicLikely Pathogenic0.869Likely Pathogenic0.15Likely Benign0.20.66Ambiguous0.41Likely Benign0.70Ambiguous-3.91Deleterious0.999Probably Damaging0.994Probably Damaging-1.29Pathogenic0.01Affected3.373510-0.4-0.94
c.1484A>G
E495G
2D
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AIThe SynGAP1 E495G missense variant is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33438516‑A‑G). Among the available in‑silico predictors, the following tools uniformly indicate a pathogenic effect: REVEL, Rosetta, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus (which itself is a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN). No tool in the dataset predicts a benign outcome; predictions that are uncertain (FoldX, Foldetta, premPS, AlphaMissense‑Optimized) are treated as unavailable. High‑accuracy assessments show AlphaMissense‑Optimized as “Uncertain,” SGM‑Consensus as “Likely Pathogenic,” and Foldetta as “Uncertain.” Overall, the preponderance of pathogenic predictions strongly suggests that the variant is most likely pathogenic, which does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33438516-A-G16.20e-7-9.400Likely Pathogenic0.923Likely PathogenicAmbiguous0.867Likely Pathogenic1.21Ambiguous0.02.06Destabilizing1.64Ambiguous0.78Ambiguous-6.70Deleterious1.000Probably Damaging0.999Probably Damaging-1.46Pathogenic0.02Affected3.3735-203.1-72.06
c.1485A>C
E495D
2D
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AISynGAP1 missense variant E495D is listed in ClinVar with an uncertain significance (ClinVar ID 2000233.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions from SIFT and ESM1b, and pathogenic predictions from REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. The high‑accuracy consensus (SGM Consensus) derived from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN classifies the variant as likely pathogenic. AlphaMissense‑Optimized also predicts pathogenicity, whereas Foldetta, which integrates FoldX‑MD and Rosetta outputs, remains uncertain. Overall, the majority of evidence points to a pathogenic effect, which does not contradict the ClinVar uncertain status but suggests a higher likelihood of deleterious impact.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 2-3.574Likely Benign0.958Likely PathogenicLikely Pathogenic0.566Likely Pathogenic1.39Ambiguous0.11.03Ambiguous1.21Ambiguous0.98Ambiguous-2.52Deleterious0.998Probably Damaging0.989Probably Damaging-1.41Pathogenic0.17Tolerated3.3735320.0-14.03220.638.80.00.00.10.1XXUncertainGlu495 is located in the α-helix (res. Leu489-Glu519), and its carboxylate group forms salt bridges with the neighboring Lys492 and with Arg596 on an opposing α-helix (res. Glu582-Met603) in the WT simulations. In the variant simulations, the acidic carboxylate side chain of Asp495 can also form salt bridges with both Lys492 and Arg596. However, the shorter side chain of aspartate tends to favor forming a salt bridge with the nearby Arg499 on the same α-helix instead. Asp495 might not maintain the salt bridge with Arg596 on the opposing α-helix as efficiently as Glu495 in the WT, potentially weakening the tertiary structure. Regardless, the potential negative effect is likely to be minor, with no deleterious effects observed on the protein structure during the simulations. However, due to its location at the GAP-Ras interface, the effect of the residue swap on SynGAP-Ras complex formation or GTPase activation cannot be fully addressed using the SynGAP solvent-only simulations.
c.1487A>G
E496G
2D
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AIThe SynGAP1 E496G missense variant is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess the variant’s effect fall into two groups: no tool predicts a benign outcome, while eight tools (REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default) all predict a pathogenic effect. The SGM‑Consensus, which is a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, also indicates a likely pathogenic outcome. High‑accuracy assessments are mixed: AlphaMissense‑Optimized is uncertain, the SGM‑Consensus remains likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is uncertain. Overall, the preponderance of evidence points to a pathogenic effect, contradicting the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-13.529Likely Pathogenic0.850Likely PathogenicAmbiguous0.825Likely Pathogenic1.83Ambiguous0.11.76Ambiguous1.80Ambiguous0.92Ambiguous-6.16Deleterious1.000Probably Damaging0.999Probably Damaging-1.45Pathogenic0.02Affected3.37350-23.1-72.06173.9103.10.00.0-0.70.0XXPotentially PathogenicGlu496 is located in the α-helix (res. Leu489-Glu519), and its carboxylate group forms salt bridges with the neighbouring residues Lys492 and Arg499 in the WT simulations. Glu496 also forms a hydrogen bond with Ser449 on an opposing helix (res. Val441-Ser457). In the variant simulations, Gly496 cannot form these salt bridges, which could weaken the secondary structure. Additionally, the loss of the hydrogen bond with Ser449 on the opposite helix can weaken the tertiary structure assembly. Moreover, glycine is an α-helix breaker, and it is seen to weaken the integrity of the helix as the hydrogen bonding between the backbone atoms of Gly496 and Ala493 breaks down. Also, due to its location at the GAP-Ras interface, the interaction of Glu496 with Arg499 and Lys492 might play a role in complex association and stability, which cannot be fully addressed using the SynGAP solvent-only simulations.
c.1490A>G
Y497C
2D
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AIThe SynGAP1 missense variant Y497C is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity all return a deleterious signal: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) all predict pathogenic. No tool reports a benign outcome. High‑accuracy assessments show AlphaMissense‑Optimized as “Uncertain,” SGM Consensus as “Likely Pathogenic,” and Foldetta (combining FoldX‑MD and Rosetta outputs) as “Pathogenic.” Overall, the variant is most likely pathogenic based on the consensus of predictive algorithms, which contradicts the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-11.872Likely Pathogenic0.948Likely PathogenicAmbiguous0.806Likely Pathogenic3.88Destabilizing0.14.76Destabilizing4.32Destabilizing1.40Destabilizing-8.82Deleterious1.000Probably Damaging0.995Probably Damaging-1.65Pathogenic0.03Affected3.37350-23.8-60.04209.959.1-0.10.0-0.30.1XXPotentially PathogenicTyr497 is located in the α-helix (res. Leu489-Glu519) within the inter-helix space of four α-helices (res. Leu489-Ile501, res. Val441-Ser457, res. Arg563-Glu578, res. Ala461-Val473). In the WT simulations, the phenol ring of Tyr497 hydrophobically packs with other residues in the inter-helix space (e.g., Leu465, Leu565, Val568). The hydroxyl group of Tyr497 also alternately forms hydrogen bonds with the carboxylate side chain of Gln456 and the backbone carbonyl of Glu564. Thus, Tyr497 plays a role in the folding and maintenance of the tertiary structure assembly between these four helices.In the variant simulations, the comparatively smaller residue, Cys497, cannot maintain any of the interactions seen with Tyr497 in the WT. Although no severe deleterious consequences are observed in the simulations, the structural effects could be more pronounced during actual protein folding. Indeed, the tertiary structure is seen to slightly break apart in the variant simulations.
c.1493T>G
M498R
2D
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AIThe SynGAP1 missense variant M498R is listed in ClinVar as Pathogenic (ClinVar ID 3907767.0) and is not reported in gnomAD. Prediction tools that agree on a benign effect include only polyPhen‑2 HumVar; all other evaluated algorithms (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized) predict a pathogenic impact. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, is pathogenic. No predictions or stability results are missing or inconclusive. Based on the overwhelming consensus of pathogenic predictions, the variant is most likely pathogenic, and this conclusion aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-8.812Likely Pathogenic0.988Likely PathogenicLikely Pathogenic0.869Likely Pathogenic3.85Destabilizing0.22.35Destabilizing3.10Destabilizing1.76Destabilizing-4.53Deleterious0.464Possibly Damaging0.120Benign-1.36Pathogenic0.00Affected0-1-6.424.99
c.1499T>C
L500P
2D
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AIThe SynGAP1 missense variant L500P is listed in ClinVar (ID 2708686.0) as Pathogenic and is not reported in gnomAD. All available in‑silico predictors classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments confirm this: AlphaMissense‑Optimized predicts pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts pathogenic. Thus, the variant is most likely pathogenic, and this prediction aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPPathogenic 1-15.898Likely Pathogenic0.996Likely PathogenicLikely Pathogenic0.894Likely Pathogenic5.91Destabilizing0.38.90Destabilizing7.41Destabilizing1.92Destabilizing-6.96Deleterious1.000Probably Damaging1.000Probably Damaging-1.37Pathogenic0.01Affected3.3735-3-3-5.4-16.04
c.1502T>C
I501T
2D
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AIThe SynGAP1 missense variant I501T is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Those that predict a pathogenic outcome are FoldX, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and premPS, while Rosetta remains uncertain. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as likely benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as pathogenic. Overall, the majority of predictions lean toward a benign effect, and this does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-5.996Likely Benign0.252Likely BenignLikely Benign0.362Likely Benign2.40Destabilizing0.11.81Ambiguous2.11Destabilizing1.57Destabilizing-3.48Deleterious1.000Probably Damaging1.000Probably Damaging3.44Benign0.16Tolerated3.37350-1-5.2-12.05214.526.90.00.00.50.0XPotentially PathogenicIle501 is located near a hinge in the middle of an α-helix (res. Leu489-Glu519). The sec-butyl side chain of Ile501 is hydrophobically packed with other residues in the inter-helix space (e.g., Leu500, Tyr497, Phe679) in the WT simulations. In the variant simulations, the hydroxyl group of Thr501 forms a hydrogen bond with the backbone atoms of Tyr497 on the same α-helix, which may weaken the α-helix integrity. Additionally, the polar hydroxyl group of Thr501 is not suitable for the hydrophobic inter-helix space, and thus, the residue swap could affect protein folding. However, Ile501 is followed by Gly502, which facilitates a hinge in the middle of the α-helix, making further weakening caused by Thr501 unlikely to be harmful to the α-helix integrity.
c.1505G>A
G502D
2D
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AIThe SynGAP1 missense variant G502D is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity all converge on a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all report a pathogenic or likely pathogenic outcome. No tool in the dataset predicts a benign effect. High‑accuracy assessments reinforce this consensus: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, is pathogenic. Based on the uniform predictions, the variant is most likely pathogenic, a conclusion that contradicts the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.796Likely Pathogenic0.994Likely PathogenicLikely Pathogenic0.915Likely Pathogenic3.79Destabilizing0.95.69Destabilizing4.74Destabilizing1.38Destabilizing-6.80Deleterious0.999Probably Damaging0.977Probably Damaging-1.66Pathogenic0.00Affected3.37351-1-3.158.04224.2-80.0-0.80.70.60.3XXXPotentially PathogenicGly502 is located in a hinge in the middle of an α-helix (res. Leu489-Glu519). In the WT, Gly502 acts as an α-helix breaker due to its lack of a side chain, facilitating a bend in the middle of the α-helix. In the variant simulations, the carboxylate group of Asp502 forms hydrogen bonds with neighboring residues (e.g., Ser677, Lys504), disrupting the hinge. Additionally, Asp502 struggles to fit into the α-helix hinge and cannot generate a similar bend as Gly502, which would drastically affect the secondary structure during folding. Thus, the deleterious effect seen in the simulations is likely an underestimate of the impact of the residue swap on the protein structure during protein folding.
c.1513T>C
Y505H
2D
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AIThe SynGAP1 missense variant Y505H is listed in ClinVar as Pathogenic (ClinVar ID 3064218.0) and is not reported in gnomAD. Prediction tools that classify the variant as benign include only FATHMM. All other evaluated algorithms—REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized—predict a pathogenic effect. High‑accuracy consensus methods reinforce this view: AlphaMissense‑Optimized is Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, is also Pathogenic. No prediction or stability result is missing or inconclusive. Based on the overwhelming agreement among predictive tools, the variant is most likely pathogenic, consistent with its ClinVar classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-11.383Likely Pathogenic0.982Likely PathogenicLikely Pathogenic0.646Likely Pathogenic2.91Destabilizing0.12.88Destabilizing2.90Destabilizing1.60Destabilizing-4.97Deleterious1.000Probably Damaging1.000Probably Damaging2.64Benign0.00Affected3.373520-1.9-26.03
c.1513T>G
Y505D
2D
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AIThe SynGAP1 missense variant Y505D is listed in ClinVar as Pathogenic (ClinVar ID 3172759.0) and is not reported in gnomAD. Prediction tools that indicate a benign effect are limited to FATHMM, whereas the remaining tools—REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized—consistently predict a pathogenic impact. High‑accuracy assessments further support this view: AlphaMissense‑Optimized scores the variant as Pathogenic; the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) yields a Likely Pathogenic verdict; and Foldetta, which integrates FoldX‑MD and Rosetta stability predictions, also classifies the variant as Pathogenic. Based on the overwhelming agreement among these predictions, the variant is most likely pathogenic, and this conclusion aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-14.078Likely Pathogenic0.993Likely PathogenicLikely Pathogenic0.718Likely Pathogenic4.98Destabilizing0.14.72Destabilizing4.85Destabilizing2.49Destabilizing-9.95Deleterious1.000Probably Damaging1.000Probably Damaging2.60Benign0.00Affected3.3735-3-4-2.2-48.09
c.1516C>T
L506F
2D
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AIThe SynGAP1 missense variant L506F is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include only REVEL, whereas the majority of tools (FoldX, Rosetta, Foldetta, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default) predict a pathogenic impact; premPS and AlphaMissense‑Optimized are inconclusive. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized is uncertain, the SGM Consensus (derived from the unanimous pathogenic vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. Overall, the preponderance of evidence indicates that the variant is most likely pathogenic, which is consistent with its ClinVar “Uncertain” classification and does not contradict the available data.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-11.262Likely Pathogenic0.883Likely PathogenicAmbiguous0.464Likely Benign4.92Destabilizing0.85.76Destabilizing5.34Destabilizing0.91Ambiguous-3.98Deleterious0.999Probably Damaging0.997Probably Damaging1.62Pathogenic0.01Affected3.373502-1.034.02
c.1529T>G
I510S
2D
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AIThe SynGAP1 missense variant I510S is listed in ClinVar as Pathogenic (ClinVar ID 449946.0) and is not reported in gnomAD. Prediction tools that assess the variant’s effect all converge on a deleterious outcome: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) all indicate pathogenicity. No tool predicts a benign effect. High‑accuracy assessments further support this: AlphaMissense‑Optimized is uncertain, SGM‑Consensus is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. Based on the collective evidence, the variant is most likely pathogenic, and this prediction aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-11.661Likely Pathogenic0.955Likely PathogenicAmbiguous0.926Likely Pathogenic4.00Destabilizing0.13.78Destabilizing3.89Destabilizing2.34Destabilizing-4.63Deleterious1.000Probably Damaging0.999Probably Damaging-1.44Pathogenic0.00Affected3.3735-1-2-5.3-26.08201.445.9-0.40.20.00.3XPotentially PathogenicIle510 is located in the middle of an α-helix (res. Gly502-Tyr518) within the inter-helix space of three helices (res. Gly502-Tyr518, Ala533-Val560, and res. Glu582-Met603). In the WT simulations, the sec-butyl side chain of Ile510 hydrophobically packs with other residues in the inter-helix space (e.g., Leu506, Leu610, Ile514, Ile602, Leu598). In the variant simulations, the hydroxyl group of Ser510 forms a hydrogen bond with the backbone atoms of Leu506 and Gly511 in the same α-helix, which could further weaken the α-helix integrity. This α-helix already shows weakness in the WT simulations due to Gly511. Although the simulations do not show large-scale effects, the residue swap could have a substantial impact due to the fundamental role of hydrophobic packing during protein folding.
c.1531G>A
G511R
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant G511R is listed in ClinVar as Pathogenic (ClinVar ID 1774641.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from REVEL, SIFT, and FATHMM, while pathogenic predictions are made by PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized predicts Pathogenic; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, also indicates Pathogenic; Foldetta, which integrates FoldX‑MD and Rosetta outputs, is inconclusive. Stability calculations from FoldX and Rosetta are uncertain, and premPS is unavailable. Overall, the majority of evidence points to a pathogenic impact, aligning with the ClinVar classification and not contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-11.327Likely Pathogenic0.991Likely PathogenicLikely Pathogenic0.416Likely Benign1.94Ambiguous0.31.32Ambiguous1.63Ambiguous0.94Ambiguous-7.72Deleterious1.000Probably Damaging1.000Probably Damaging3.26Benign0.06Tolerated3.3735-3-2-4.199.14279.4-159.90.00.00.70.1XXPotentially PathogenicGly511 is located in an α-helix (res. Gly502-Tyr518), facing hydrophobic residues in an inter-helix space (e.g., Leu610, Ile514) in the WT simulations. In contrast, in the variant simulations, the bulkier and positively charged guanidinium side chain of Arg511 forms a salt bridge with the carboxylate group of Glu217 or hydrogen bonds with the backbone carbonyl group of Leu610. Although the residue swap introduces a third positively charged residue in close vicinity (Arg511, Lys507, Arg515), the protein structure seems to remain stable in the variant simulations. Importantly, according to ClinVar, the residue swap alters the last nucleotide of an exon and is predicted to destroy the splice donor site, resulting in aberrant splicing and pathogenic status.10.1016/j.ajhg.2020.11.011
c.1531G>C
G511R
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant G511R is listed in ClinVar (ID 452818.0) as Pathogenic and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, SIFT, and FATHMM, whereas those that predict a pathogenic effect are PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). High‑accuracy assessments show AlphaMissense‑Optimized as Pathogenic, the SGM‑Consensus as Likely Pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as Uncertain, which is treated as unavailable evidence. Overall, the majority of available predictions support a pathogenic impact, aligning with the ClinVar classification. Thus, the variant is most likely pathogenic, and this conclusion does not contradict the ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPPathogenic 1-11.327Likely Pathogenic0.991Likely PathogenicLikely Pathogenic0.415Likely Benign1.94Ambiguous0.31.32Ambiguous1.63Ambiguous0.94Ambiguous-7.72Deleterious1.000Probably Damaging1.000Probably Damaging3.26Benign0.06Tolerated3.3735-3-2-4.199.14279.4-159.90.00.00.70.1XXPotentially PathogenicGly511 is located in an α-helix (res. Gly502-Tyr518), facing hydrophobic residues in an inter-helix space (e.g., Leu610, Ile514) in the WT simulations. In contrast, in the variant simulations, the bulkier and positively charged guanidinium side chain of Arg511 forms a salt bridge with the carboxylate group of Glu217 or hydrogen bonds with the backbone carbonyl group of Leu610. Although the residue swap introduces a third positively charged residue in close vicinity (Arg511, Lys507, Arg515), the protein structure seems to remain stable in the variant simulations. Importantly, according to ClinVar, the residue swap alters the last nucleotide of an exon and is predicted to destroy the splice donor site, resulting in aberrant splicing and pathogenic status.10.1016/j.ajhg.2020.11.011
c.1540A>T
I514F
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant I514F is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that classify the variant as benign include only FATHMM. All other evaluated algorithms—REVEL, FoldX, Rosetta, Foldetta, premPS (uncertain), PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized—report it as pathogenic or likely pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized predicts pathogenicity; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, also indicates pathogenicity; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, classifies the variant as pathogenic. Based on the overwhelming consensus of pathogenic predictions, the variant is most likely pathogenic, which is consistent with its ClinVar uncertain status rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-13.383Likely Pathogenic0.962Likely PathogenicLikely Pathogenic0.601Likely Pathogenic2.35Destabilizing0.33.74Destabilizing3.05Destabilizing0.93Ambiguous-3.98Deleterious0.997Probably Damaging0.993Probably Damaging2.89Benign0.00Affected3.373501-1.734.02
c.1544G>A
R515H
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant R515H is listed in ClinVar with an uncertain significance (ClinVar ID 638438.0) and is present in gnomAD (variant ID 6‑33438787‑G‑A). Prediction tools that agree on a benign effect include AlphaMissense‑Default and AlphaMissense‑Optimized. Those that predict a pathogenic impact comprise REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, and FATHMM. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a likely pathogenic classification. High‑accuracy assessments show AlphaMissense‑Optimized as benign, while the SGM Consensus remains pathogenic; Foldetta, which integrates FoldX‑MD and Rosetta outputs, is inconclusive. Overall, the balance of evidence favors a pathogenic effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33438787-G-A31.86e-6-10.774Likely Pathogenic0.337Likely BenignLikely Benign0.730Likely Pathogenic1.07Ambiguous0.20.74Ambiguous0.91Ambiguous1.09Destabilizing-3.44Deleterious1.000Probably Damaging0.998Probably Damaging-1.32Pathogenic0.01Affected3.3735201.3-19.05239.277.80.00.00.40.2XPotentially BenignThe guanidinium group of Arg515, located in the middle of an α-helix at the GAP domain (res. Gly502-Tyr518), forms salt bridges with the carboxylate groups of Glu512 on the same helix and Glu217 on a loop in the PH domain. Additionally, the positively charged Arg515 side chain forms hydrogen bonds with Leu610 and Gln612 in an opposing loop (res. Gly609-Asp616). In contrast, in the variant simulations, the imidazole ring of His515 cannot form salt bridges with either of the acidic residues, and its side chain is too short to form hydrogen bonds with the loop residues. Accordingly, the residue swap could weaken the tertiary structure assembly of the protein. Due to the missing N-terminal part of the SynGAP model, the effect could be largely underestimated or missing. Notably, the doubly protonated and positively charged form of histidine was not simulated here.
c.1552T>C
Y518H
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant Y518H is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, SIFT, and FATHMM, whereas a majority of tools predict a pathogenic impact: FoldX, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), AlphaMissense‑Default, and ESM1b. Predictions that are inconclusive are Foldetta, AlphaMissense‑Optimized, and Rosetta. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM Consensus (derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as “Likely Pathogenic,” and Foldetta (combining FoldX‑MD and Rosetta outputs) as uncertain. Overall, the preponderance of evidence points to a pathogenic effect for Y518H, which does not contradict the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.797Likely Pathogenic0.943Likely PathogenicAmbiguous0.496Likely Benign2.39Destabilizing0.40.82Ambiguous1.61Ambiguous1.31Destabilizing-4.74Deleterious1.000Probably Damaging1.000Probably Damaging3.40Benign0.08Tolerated02-1.9-26.03
c.1556A>C
E519A
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 E519A missense variant is listed in ClinVar as Pathogenic (ClinVar ID 1029087.0) and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, FoldX, Foldetta, premPS, SIFT, and FATHMM. Those that predict a pathogenic effect are PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, AlphaMissense‑Default, ESM1b, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN). Uncertain predictions from Rosetta and AlphaMissense‑Optimized are treated as unavailable. High‑accuracy results are: AlphaMissense‑Optimized – unavailable; SGM‑Consensus – Pathogenic; Foldetta – Benign. Overall, the predictions are balanced, but the high‑accuracy Foldetta result leans toward benign while the consensus leans toward pathogenic, leaving the assessment inconclusive. Based on the available predictions, the variant is most likely benign, contradicting the ClinVar pathogenic classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-8.557Likely Pathogenic0.904Likely PathogenicAmbiguous0.384Likely Benign-0.05Likely Benign0.00.55Ambiguous0.25Likely Benign0.00Likely Benign-5.23Deleterious0.999Probably Damaging0.998Probably Damaging3.33Benign0.10Tolerated3.37350-15.3-58.04162.483.5-0.10.1-0.20.0XPotentially BenignGlu519 is located at the beginning of an α-α loop between the two α-helices (res. Gly502-Tyr518 and Ala533-Val560). In the WT simulations, the carboxylate side chain of Glu519 does not make any specific interactions. Accordingly, the Ala residue swap does not show any negative structural effects in the variant simulations. However, it should be noted that Glu519 faces the missing part of the N-terminal in the model, and thus its potential role in maintaining the tertiary structure might be de-emphasized in the current model.
c.1558T>C
S520P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S520P is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity all converge on a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all report a pathogenic outcome, while premPS remains inconclusive. No tool predicts a benign effect. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, is pathogenic. Overall, the evidence strongly supports a pathogenic impact for S520P, and this conclusion does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-12.707Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.855Likely Pathogenic3.72Destabilizing0.88.86Destabilizing6.29Destabilizing0.83Ambiguous-4.57Deleterious0.997Probably Damaging0.986Probably Damaging-1.32Pathogenic0.01Affected1-1-0.810.04
c.1559C>T
S520F
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S520F is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools that classify the variant as benign include Rosetta, Foldetta, and premPS. Those that predict pathogenicity are REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. FoldX gives an uncertain result. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized predicts pathogenicity, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) indicates likely pathogenic, whereas Foldetta, a protein‑folding stability method combining FoldX‑MD and Rosetta outputs, predicts a benign impact. Overall, the majority of evidence points to a pathogenic effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-12.541Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.833Likely Pathogenic-1.20Ambiguous0.40.39Likely Benign-0.41Likely Benign0.25Likely Benign-5.57Deleterious0.999Probably Damaging0.996Probably Damaging-1.36Pathogenic0.00Affected3.3735-2-33.660.10
c.155C>T
S52L
2D
AISynGAP1 missense variant S52L is listed in ClinVar with an uncertain significance and is present in the gnomAD database (ID 6‑33423564‑C‑T). Functional prediction tools cluster into two groups: benign predictions come from REVEL, PROVEAN, FATHMM, and AlphaMissense‑Optimized, while pathogenic predictions arise from polyPhen‑2 (HumDiv and HumVar), SIFT, and AlphaMissense‑Default; ESM1b remains uncertain. High‑accuracy assessments further support a benign interpretation: AlphaMissense‑Optimized scores the variant as benign, and the SGM Consensus—derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN—also favors benign. The Foldetta protein‑folding stability analysis is unavailable for this variant. Overall, the collective evidence points to a likely benign effect, which does not contradict the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Uncertain 16-33423564-C-T16.20e-7-7.199In-Between0.688Likely PathogenicLikely Benign0.087Likely Benign-1.41Neutral0.829Possibly Damaging0.706Possibly Damaging4.10Benign0.00Affected4.321-3-24.626.08
c.1579G>T
D527Y
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant D527Y is listed in ClinVar with an uncertain significance (ClinVar ID 1698369.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: the single benign prediction from premPS versus a consensus of pathogenic predictions from the remaining 12 tools (REVEL, SGM‑Consensus, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized). High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized predicts pathogenic, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is inconclusive. Protein‑stability calculations from FoldX and Rosetta are also uncertain. Overall, the preponderance of evidence indicates that D527Y is most likely pathogenic, which does not contradict the current ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-15.386Likely Pathogenic0.978Likely PathogenicLikely Pathogenic0.905Likely Pathogenic-0.77Ambiguous0.21.89Ambiguous0.56Ambiguous-0.14Likely Benign-8.79Deleterious1.000Probably Damaging0.999Probably Damaging-2.41Pathogenic0.00Affected3.3735-4-32.248.09270.9-45.70.10.1-0.10.0XPotentially PathogenicAsp527 is located on an α-α loop between the two α-helices (res. Gly502-Tyr518 and Ala533-Val560). In the WT simulations, the carboxylate group of the Asp527 side chain forms hydrogen bonds with the backbone atoms of loop residues (e.g., Ile529, Lys530) facing the membrane surface. In the variant simulations, Tyr527 is a bulkier residue that faces away from the loop and stacks with Phe646 in a nearby α-helix (res. Ser614-Ser668). Regardless, no negative structural effects are observed during the variant simulations. However, due to its location near the SynGAP-membrane interface, the effect of the residue swap cannot be fully addressed using the SynGAP solvent-only simulations.
c.1586T>C
I529T
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant I529T is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus “Likely Benign” call. Tools that predict a pathogenic outcome are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and FATHMM. High‑accuracy assessments show AlphaMissense‑Optimized as benign; the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also yields a benign prediction; and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, predicts benign. Overall, the majority of evidence points to a benign effect, and this is consistent with the ClinVar “Uncertain” classification—there is no contradiction between the predictions and the current ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-0.539Likely Benign0.336Likely BenignLikely Benign0.343Likely Benign0.22Likely Benign0.20.16Likely Benign0.19Likely Benign0.17Likely Benign0.24Neutral0.872Possibly Damaging0.820Possibly Damaging-1.23Pathogenic0.55Tolerated3.37350-1-5.2-12.05207.229.80.20.00.20.1XPotentially BenignIle529 is located on an α-α loop between the two α-helices (res. Gly502-Tyr518 and Ala533-Val560). In the WT simulations, the sec-butyl side chain of Ile529 faces the membrane interface and shows no specific interactions. In the variant simulations, the hydroxyl group of Thr529 forms a hydrogen bond with the carboxylate side chain of Asp527, but no negative structural changes are observed. However, due to its location near the SynGAP-membrane interface, the effect of the residue swap cannot be fully addressed using the SynGAP solvent-only simulations.
c.1594A>C
T532P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant T532P is listed in ClinVar as Benign (ClinVar ID 1598909.0) and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM Consensus (majority vote). Only FATHMM predicts a pathogenic outcome. High‑accuracy assessments—AlphaMissense‑Optimized, the SGM Consensus, and Foldetta (combining FoldX‑MD and Rosetta outputs)—all indicate a benign impact. No prediction or folding‑stability result is missing or inconclusive. Based on the collective evidence, the variant is most likely benign, and this conclusion is consistent with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPBenign 1-2.143Likely Benign0.061Likely BenignLikely Benign0.201Likely Benign-0.30Likely Benign0.20.06Likely Benign-0.12Likely Benign0.08Likely Benign-0.90Neutral0.005Benign0.008Benign-1.28Pathogenic0.18Tolerated3.37350-1-0.9-3.99174.235.10.40.00.10.0XPotentially BenignThr532 is located on an α-α loop between the two α-helices (res. Gly502-Tyr518 and Ala533-Val560) facing the membrane. In the WT simulations, the hydroxyl group of Thr532 occasionally forms hydrogen bonds with the backbone atoms of other loop residues without any specific interaction. In the variant simulations, the Pro532 residue swap does not cause structural changes. Although hydrophilic residues seem more favorable in the loop, the pyrrolidine side chain of proline is well suited for unstructured protein regions such as loops. However, due to its location at the SynGAP-membrane interface, the effect of the residue swap cannot be fully addressed using the SynGAP solvent-only simulations.
c.1600T>C
S534P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S534P is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33438843‑T‑C). Functional prediction tools that report a benign effect include REVEL, FoldX, Rosetta, Foldetta, premPS, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. In contrast, tools that predict a pathogenic effect are PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and SIFT. The high‑accuracy assessments are consistent with a benign outcome: AlphaMissense‑Optimized predicts benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) indicates “Likely Benign,” and Foldetta (combining FoldX‑MD and Rosetta outputs) also predicts benign. Based on the aggregate predictions, the variant is most likely benign, which does not contradict the ClinVar status of uncertainty.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 16-33438843-T-C31.86e-6-5.056Likely Benign0.265Likely BenignLikely Benign0.203Likely Benign-0.40Likely Benign0.20.35Likely Benign-0.03Likely Benign0.47Likely Benign-3.81Deleterious0.993Probably Damaging0.993Probably Damaging3.32Benign0.05Affected3.3735-11-0.810.04
c.1604G>C
S535T
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S535T is catalogued in ClinVar as benign (ClinVar ID 537005.0) and is observed in gnomAD (variant ID 6‑33438847‑G‑C). In silico prediction tools largely agree on a benign effect: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized all return benign scores. Only FATHMM predicts a pathogenic outcome. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, classifies the variant as likely benign. High‑accuracy assessments confirm this: AlphaMissense‑Optimized is benign; the SGM Consensus is likely benign; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, also reports a benign effect. Overall, the consensus of predictive tools and high‑accuracy methods indicates that the variant is most likely benign, consistent with its ClinVar classification and presence in gnomAD.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPBenign 16-33438847-G-C148.67e-6-3.886Likely Benign0.069Likely BenignLikely Benign0.177Likely Benign0.45Likely Benign0.1-0.27Likely Benign0.09Likely Benign0.17Likely Benign-0.81Neutral0.000Benign0.001Benign-1.25Pathogenic0.25Tolerated3.3735110.114.03201.3-17.3-0.10.7-0.20.1XPotentially BenignSer535 is located near the terminal end of an α-helix (res. Ala533-Val560) close to the membrane interface. In the WT simulations, the hydroxyl side chain of Ser535 forms hydrogen bonds with nearby residues (e.g., His539, Glu538) without any specific interactions. These hydrogen bonds disrupt the structure of the terminal end of the α-helix (Ala533-Ser535), causing it to weaken or unfold during the WT simulations. In the variant simulations, Thr535, a hydrophilic residue with a hydroxyl group of almost the same size as Ser, interacts more frequently with the preceding loop residues (e.g., Thr532, Cys531) due to its longer side chain. Regardless, the residue swap is tolerated in the simulations with no negative effects. However, due to its location near the SynGAP-membrane interface, the effect of the residue swap cannot be fully addressed using the SynGAP solvent-only simulations.10.1016/j.ajhg.2020.11.011
c.1606T>G
L536V
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant L536V is listed in ClinVar (ID 1690714.0) with an uncertain significance designation and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from SIFT, AlphaMissense‑Default, and AlphaMissense‑Optimized; pathogenic predictions arise from REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, and FATHMM. The SGM‑Consensus, which aggregates AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a likely pathogenic verdict. High‑accuracy assessments show AlphaMissense‑Optimized as benign, SGM‑Consensus as likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) remains uncertain. No evidence from FoldX or Rosetta alone is available. Overall, the majority of evidence points toward a pathogenic effect, which does not contradict the ClinVar uncertain status but suggests a higher likelihood of pathogenicity.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.014Likely Pathogenic0.269Likely BenignLikely Benign0.586Likely Pathogenic1.25Ambiguous0.31.22Ambiguous1.24Ambiguous1.20Destabilizing-2.81Deleterious0.998Probably Damaging0.992Probably Damaging-1.34Pathogenic0.09Tolerated3.3734210.4-14.03204.726.40.20.0-0.20.2XPotentially BenignLeu536 is located on an α-helix (res. Ala533-Val560) at the membrane interface. The iso-butyl group of Leu536 interacts with nearby hydrophobic residues in the preceding loop (e.g., Val526, Pro528, Cys531). In the variant simulations, the iso-propyl side chain of Val536 forms similar hydrophobic interactions as Leu536 in the WT, causing no negative structural effects.
c.1610C>T
A537V
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant A537V is listed in ClinVar as Benign (ClinVar ID 766762.0) and is present in gnomAD (ID 6‑33438853‑C‑T). Functional prediction tools that agree on a benign effect include REVEL, Rosetta, Foldetta, premPS, PROVEAN, SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and FATHMM. High‑accuracy assessments further support a benign outcome: AlphaMissense‑Optimized is benign; the SGM Consensus, derived from the majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is benign; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, is benign. FoldX alone is uncertain and therefore not considered evidence. Overall, the consensus of available predictions indicates that the variant is most likely benign, in agreement with its ClinVar classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPLikely Benign 16-33438853-C-T74.34e-6-6.888Likely Benign0.120Likely BenignLikely Benign0.382Likely Benign0.54Ambiguous0.0-0.05Likely Benign0.25Likely Benign0.41Likely Benign-1.97Neutral0.977Probably Damaging0.469Possibly Damaging-1.26Pathogenic0.24Tolerated3.3735002.428.05220.3-45.10.00.0-0.70.1XPotentially BenignAla537 is located on the outer surface of an α-helix (res. Ala533-Val560). The methyl group of Ala537 is on the surface and does not form any interactions. In the variant simulations, the iso-propyl side chain of Val537 is also on the surface, similar to Ala537 in the WT, causing no negative structural effects.
c.1621G>C
A541P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant A541P is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that classify the variant as benign include only SIFT, whereas the remaining tools—REVEL, FoldX, Rosetta, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized—predict it to be pathogenic. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, also indicates likely pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized is pathogenic, the SGM Consensus is likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts pathogenicity. No predictions are inconclusive or missing. Overall, the collective evidence points to a pathogenic effect for A541P, which is in contrast to the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.733Likely Pathogenic0.996Likely PathogenicLikely Pathogenic0.594Likely Pathogenic2.47Destabilizing0.37.26Destabilizing4.87Destabilizing0.86Ambiguous-3.16Deleterious1.000Probably Damaging0.998Probably Damaging-1.34Pathogenic0.07Tolerated3.37351-1-3.426.04170.4-11.20.10.00.10.0XPotentially PathogenicAla541 is located on the outer surface of an α-helix (res. Ala533-Val560). The methyl group of Ala541 is on the surface and does not form any interactions. Proline lacks a free backbone amide group, and thus, Pro541 is unable to form a hydrogen bond with the carbonyl group of Ala537 in the variant simulations. Consequently, Pro541 disrupts the continuity of the secondary structure element, causing the α-helix to bend slightly in the variant simulations.
c.1622C>G
A541G
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant A541G is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33438865‑C‑G). Prediction tools that agree on a benign effect include REVEL, PROVEAN, SIFT, and AlphaMissense‑Optimized. Those that predict a pathogenic effect are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and FATHMM. The remaining tools (FoldX, Rosetta, Foldetta, premPS, AlphaMissense‑Default, and ESM1b) return uncertain or inconclusive results. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is inconclusive, and Foldetta is also inconclusive. Overall, the balance of evidence leans toward a benign impact, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 16-33438865-C-G21.24e-6-7.233In-Between0.341AmbiguousLikely Benign0.421Likely Benign0.67Ambiguous0.00.94Ambiguous0.81Ambiguous0.76Ambiguous-1.48Neutral0.999Probably Damaging0.995Probably Damaging-1.31Pathogenic0.57Tolerated3.373510-2.2-14.03170.123.60.00.00.00.0XPotentially PathogenicAla541 is located on the outer surface of an α-helix (res. Ala533-Val560). The methyl group of Ala541 is on the surface and does not form any interactions. Glycine, known as an “α-helix breaker,” weakens the integrity of the helix. Indeed, in the variant simulations, the hydrogen bond formation between Gly541 and the backbone carbonyl of Ala537 is disrupted.
c.1625A>G
N542S
2D
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AISynGAP1 missense variant N542S is listed in ClinVar as benign (ClinVar ID 833567.0) and is not reported in gnomAD. Prediction tools that classify the variant as benign include SIFT and AlphaMissense‑Optimized, whereas the majority of tools predict pathogenicity: REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus (Likely Pathogenic). High‑accuracy assessments show AlphaMissense‑Optimized predicting benign, SGM‑Consensus predicting likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) yielding an uncertain result. Overall, the preponderance of evidence points to a pathogenic effect, which is in conflict with the ClinVar benign designation.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Benign 1-9.675Likely Pathogenic0.767Likely PathogenicLikely Benign0.752Likely Pathogenic0.98Ambiguous0.10.99Ambiguous0.99Ambiguous0.91Ambiguous-4.40Deleterious1.000Probably Damaging0.989Probably Damaging-1.36Pathogenic0.13Tolerated3.3735112.7-27.03212.532.10.00.0-0.60.3XPotentially PathogenicAsn542 is located in an α-helix (res. Ala533-Val560) next to an α-α loop between two α-helices (res. Gly502-Tyr518 and Ala533-Val560). In the WT simulations, the carboxamide group of the Asn542 side chain forms a hydrogen bond with the backbone carbonyl group of Asn523 and packs favourably against Glu522 from the loop. In contrast, in the variant simulations, the hydroxyl group of the Ser542 side chain is unable to maintain either the hydrogen bond with Asn523 or the packing against the Glu522 side chain. Instead, the hydroxyl group of Ser542 occasionally forms a hydrogen bond with the backbone carbonyl group of Glu538.Altogether, the residue swap results in a looser helix-loop association, which is especially evident in the third replica simulation, where Asn523 moves away from its initial placement next to the α-helix. In short, based on the simulations, the residue swap weakens the GAP domain tertiary structure assembly, which in turn could negatively affect protein folding.
c.1631G>A
R544Q
2D
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AIThe SynGAP1 missense variant R544Q is listed in ClinVar with an “Uncertain” status and is present in gnomAD (variant ID 6‑33438874‑G‑A). Prediction tools that classify the change as benign include FoldX, PROVEAN, SIFT, and AlphaMissense‑Optimized. Those that predict pathogenicity are REVEL, premPS, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, and AlphaMissense‑Default. Foldetta and Rosetta give uncertain results. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta remains uncertain. Overall, the majority of evidence points toward a pathogenic effect, which is not contradictory to the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33438874-G-A16.20e-7-10.281Likely Pathogenic0.596Likely PathogenicLikely Benign0.542Likely Pathogenic0.19Likely Benign0.20.87Ambiguous0.53Ambiguous1.40Destabilizing-2.41Neutral1.000Probably Damaging0.997Probably Damaging-1.40Pathogenic0.09Tolerated3.3735111.0-28.06
c.1631G>C
R544P
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant R544P is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Across the available in‑silico predictors, none indicate a benign effect; all 13 tools (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized) predict a pathogenic outcome. High‑accuracy methods reinforce this view: AlphaMissense‑Optimized is pathogenic, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta) is pathogenic. Consequently, the variant is most likely pathogenic based on current predictions, which contradicts the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 2-16.905Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.762Likely Pathogenic4.70Destabilizing0.14.19Destabilizing4.45Destabilizing1.14Destabilizing-4.88Deleterious1.000Probably Damaging1.000Probably Damaging-1.48Pathogenic0.05Affected3.37350-22.9-59.07192.0123.80.10.0-0.30.0XXPotentially PathogenicArg544 is located in the middle of an α-helix (res. Ala533-Val560). In the WT simulations, the guanidinium side chain of Arg544 forms a salt bridge with the carboxylate groups of Glu548 on the same α-helix, and with Glu651 and Glu656 on an opposing α-helix (res. Glu666-Asp644). In the variant simulations, the pyrrolidine side chain of Pro544 cannot form any of the salt bridges that Arg544 does in the WT, potentially weakening the tertiary structure assembly. Additionally, Pro544 lacks the amide group, and thus, unlike Arg544 in the WT, is unable to form a hydrogen bond with the carbonyl of Gln540. This disruption breaks the continuity of the secondary structure element, causing the α-helix to bend slightly in the variant simulations. These negative structural effects could be more pronounced during protein folding and are likely to be undermined in the MD simulations.
c.1635G>A
M545I
2D
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AIThe SynGAP1 missense variant M545I is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools cluster into two groups: benign predictions arise from FoldX, Rosetta, and SIFT, whereas pathogenic predictions come from REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, and AlphaMissense‑Default; premPS remains inconclusive. High‑accuracy methods provide mixed evidence: AlphaMissense‑Optimized indicates pathogenicity, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also suggests likely pathogenic, while Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, predicts a benign effect. Overall, the preponderance of conventional tools and the SGM Consensus lean toward pathogenicity, whereas the Foldetta result is an outlier. Thus, the variant is most likely pathogenic based on the available predictions, and this assessment does not contradict its ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-8.348Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.592Likely Pathogenic0.47Likely Benign0.10.14Likely Benign0.31Likely Benign0.63Ambiguous-3.61Deleterious0.935Possibly Damaging0.941Probably Damaging-1.27Pathogenic0.28Tolerated3.3735122.6-18.03
c.1639T>C
C547R
2D
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AIThe SynGAP1 missense variant C547R is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity all converge on a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all predict pathogenicity, while no tool in the dataset predicts a benign outcome. High‑accuracy methods reinforce this view: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, also predicts pathogenicity. Based on the unanimous computational evidence, the variant is most likely pathogenic, a conclusion that contradicts the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-16.967Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.900Likely Pathogenic7.76Destabilizing0.85.83Destabilizing6.80Destabilizing1.69Destabilizing-11.60Deleterious1.000Probably Damaging0.998Probably Damaging-1.33Pathogenic0.02Affected3.3735-4-3-7.053.05267.4-90.30.00.0-0.10.1XXXXPotentially PathogenicCys547 is located in an α-helix (res. Ala533-Val560). The thiol side chain of Cys is situated in a hydrophobic inter-helix space, where it packs hydrophobically with other residues such as Ile626, Leu551, and Phe652. Additionally, the thiol side chain of Cys547 weakly hydrogen bonds with the carbonyl group of Leu543 in the same α-helix. In the variant simulations, the bulkier, positively charged guanidinium group of Arg547 must rotate out of the hydrophobic space. Consequently, it forms ionic interactions with the carboxylate groups of Glu548 in the same helix and Glu656 in the neighboring α-helix (res. Glu666-Asp644). This causes the two helices to slightly separate, significantly affecting the secondary structure integrity of the latter helix. These negative structural effects could be more pronounced during protein folding and are likely to be undermined in the MD simulations.
c.1640G>A
C547Y
2D
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AIThe SynGAP1 missense variant C547Y (ClinVar ID 1404191.0) is listed as Pathogenic in ClinVar and is not reported in gnomAD. Prediction tools that agree on a benign effect include only SIFT, whereas the remaining tools—REVEL, FoldX, Rosetta, Foldetta, premPS (uncertain), PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized—consistently predict a pathogenic impact. High‑accuracy assessments further support this: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is Likely Pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, is pathogenic. Taken together, the overwhelming majority of computational evidence indicates a pathogenic effect, which is in agreement with the ClinVar classification. Thus, the variant is most likely pathogenic and does not contradict the ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPPathogenic 1-15.871Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.874Likely Pathogenic8.53Destabilizing1.86.20Destabilizing7.37Destabilizing0.62Ambiguous-10.57Deleterious1.000Probably Damaging0.998Probably Damaging-1.33Pathogenic0.06Tolerated3.37350-2-3.860.04280.1-54.80.00.00.00.0XXXPotentially PathogenicCys547 is located in an α-helix (res. Ala533-Val560). The thiol side chain of Cys547 is situated in a hydrophobic inter-helix space, where it packs hydrophobically with other residues such as Ile626, Leu551, and Phe652. Additionally, the thiol side chain of Cys weakly hydrogen bonds with the carbonyl group of Leu543 in the same α-helix. In the variant simulations, the bulkier phenol ring of Tyr547, with its polar hydroxyl group, is less suited for the hydrophobic space. Consequently, it moves outside and forms a hydrogen bond with the carbonyl group of Phe652 in the neighboring α-helix (res. Glu666-Asp644). This causes the two helices to slightly separate, negatively affecting the secondary structure integrity of the latter helix. These negative structural effects could be more pronounced during protein folding and are likely to be undermined in the MD simulations.
c.1651C>A
L551M
2D
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AIThe SynGAP1 missense variant L551M is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33438894‑C‑A). Prediction tools that classify the variant as benign include FoldX, Rosetta, Foldetta, PROVEAN, SIFT, and AlphaMissense‑Optimized, while those that predict pathogenicity are REVEL, polyPhen‑2 (HumDiv and HumVar), ESM1b, and FATHMM. Two tools report an uncertain outcome: premPS and AlphaMissense‑Default. High‑accuracy assessments show AlphaMissense‑Optimized as benign, Foldetta as benign, and the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic. Overall, the majority of predictions lean toward a benign effect, and this does not contradict the ClinVar “Uncertain” classification. Thus, the variant is most likely benign based on the current computational evidence.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 16-33438894-C-A74.34e-6-9.937Likely Pathogenic0.480AmbiguousLikely Benign0.544Likely Pathogenic-0.07Likely Benign0.10.13Likely Benign0.03Likely Benign0.71Ambiguous-0.56Neutral1.000Probably Damaging1.000Probably Damaging-1.48Pathogenic0.06Tolerated3.373542-1.918.03246.5-18.60.00.00.30.0XPotentially BenignL551 is located on an α-helix (res. Ala533-Val560). The iso-butyl side chain of Leu551 hydrophobically packs with nearby hydrophobic residues such as Cys547, Phe652, Leu633, and Ile630 in the inter-helix space. In the variant simulations, the thioether side chain of Met551 can maintain similar hydrophobic interactions as Leu551 in the WT, thus causing no negative effect on the protein structure during the simulations.
c.1652T>C
L551P
2D
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AIThe SynGAP1 missense variant L551P (ClinVar ID 547942.0) is classified as Pathogenic in ClinVar and is not reported in gnomAD. Prediction tools that assess functional impact uniformly indicate a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all predict pathogenicity. No tool in the dataset predicts a benign outcome. High‑accuracy assessments further support this: AlphaMissense‑Optimized is Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta stability predictions, is Pathogenic. Based on the collective predictions, the variant is most likely pathogenic, and this conclusion aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-14.620Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.953Likely Pathogenic6.66Destabilizing0.16.58Destabilizing6.62Destabilizing2.66Destabilizing-4.70Deleterious1.000Probably Damaging1.000Probably Damaging-1.60Pathogenic0.01Affected3.3735-3-3-5.4-16.04208.660.90.10.0-0.30.0XPotentially PathogenicL551 is located on an α-helix (res. Ala533-Val560). The iso-butyl side chain of Leu551 hydrophobically packs with nearby hydrophobic residues such as Cys547, Phe652, Leu633, and Ile630 in the inter-helix space. In the variant simulations, the pyrrolidine side chain of Pro551 is not as optimal as leucine for hydrophobic packing with the nearby residues. Moreover, Pro551 lacks the amide group, and thus, it cannot form a hydrogen bond with the backbone carbonyl group of Cys547, which disrupts the continuity of the secondary structure element.
c.1658A>C
K553T
2D
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AISynGAP1 missense variant K553T is listed in ClinVar with an uncertain significance (ClinVar ID 2007142.0) and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include Rosetta and SIFT, whereas the majority of tools predict a pathogenic impact: REVEL, PROVEAN, both polyPhen‑2 HumDiv and HumVar, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (Likely Pathogenic). Uncertain results are reported by FoldX, Foldetta, and premPS. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM‑Consensus as Likely Pathogenic, and Foldetta as inconclusive. Overall, the consensus of the available predictions indicates that K553T is most likely pathogenic, which does not contradict the current ClinVar status of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-15.328Likely Pathogenic0.990Likely PathogenicLikely Pathogenic0.761Likely Pathogenic1.06Ambiguous0.20.48Likely Benign0.77Ambiguous0.79Ambiguous-5.77Deleterious1.000Probably Damaging1.000Probably Damaging-1.34Pathogenic0.14Tolerated3.37350-13.2-27.07218.2-10.70.00.0-0.20.5XPotentially PathogenicLys533 is located on an α-helix (res. Ala533-Val560). In the WT simulations, Lys533 packs against Phe513, and its amino side chain occasionally forms an ionic interaction with the carboxylate group of Glu512 from an opposing α-helix (res. Gln503-Tyr518). In the variant simulations, Thr533 is unable to reproduce these interactions, potentially weakening the integrity of the tertiary structure. Additionally, Thr533 forms a hydrogen bond with the backbone carbonyl group of Leu549 in the same helix, which could potentially weaken the secondary structure. Regardless, the residue swap does not cause significant structural effects based on the simulations.
c.1663G>A
V555I
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant V555I is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that uniformly indicate a benign effect include REVEL, Rosetta, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus score (Likely Benign). Only FATHMM predicts a pathogenic outcome, while FoldX, Foldetta, and premPS are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as Likely Benign, and Foldetta as uncertain. Overall, the majority of evidence points to a benign effect, and this conclusion does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-4.544Likely Benign0.084Likely BenignLikely Benign0.253Likely Benign-0.82Ambiguous0.0-0.41Likely Benign-0.62Ambiguous-0.55Ambiguous0.45Neutral0.002Benign0.002Benign-1.26Pathogenic1.00Tolerated430.314.03
c.1667A>G
N556S
2D
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AISynGAP1 missense variant N556S (ClinVar ID 941099.0) is listed as Uncertain in ClinVar and is present in gnomAD (ID 6‑33438910‑A‑G). Functional prediction tools that agree on a benign effect include REVEL, Rosetta, Foldetta, premPS, SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and FATHMM. The high‑accuracy AlphaMissense‑Optimized score is benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is inconclusive due to a 2‑vs‑2 split, and Foldetta predicts a benign effect. No other high‑accuracy or folding‑stability methods provide additional evidence. Overall, the majority of predictions support a benign impact, which does not contradict the ClinVar Uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 16-33438910-A-G31.86e-6-6.576Likely Benign0.197Likely BenignLikely Benign0.449Likely Benign0.52Ambiguous0.10.14Likely Benign0.33Likely Benign0.16Likely Benign-3.60Deleterious1.000Probably Damaging0.989Probably Damaging-1.22Pathogenic0.14Tolerated3.3735112.7-27.03198.831.00.00.0-0.50.2XPotentially BenignAsn556 is located on the outer surface of an α-helix (res. Ala533-Val560). The carboxamide group of Asn556 forms hydrogen bonds with nearby residues such as Lys553 and Cys552. It also forms a hydrogen bond with the backbone carbonyl group of Cys552, which weakens the α-helix integrity. In the variant simulations, the hydroxyl group of Ser556 forms a more stable hydrogen bond with the backbone carbonyl oxygen of the same helix residue, Cys552, compared to Asn556 in the WT. Serine has a slightly lower propensity to reside in an α-helix than asparagine, which may exacerbate the negative effect on the α-helix integrity. However, the residue swap does not cause negative structural effects during the simulations.
c.1667A>T
N556I
2D
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AIThe SynGAP1 missense variant N556I is catalogued in ClinVar as benign (ClinVar ID 2692844.0) and is observed in gnomAD (ID 6‑33438910‑A‑T). Functional prediction tools cluster into two groups: benign predictions come from Rosetta, Foldetta, and premPS, while pathogenic predictions arise from REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus score. Two tools report uncertainty: FoldX and AlphaMissense‑Optimized. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta (integrating FoldX‑MD and Rosetta outputs) as benign. Taken together, the majority of predictions favor a pathogenic effect, whereas the ClinVar annotation indicates benign. Thus, the computational evidence contradicts the ClinVar status, suggesting the variant is more likely pathogenic rather than benign.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Benign 16-33438910-A-T-13.391Likely Pathogenic0.929Likely PathogenicAmbiguous0.761Likely Pathogenic0.64Ambiguous0.00.17Likely Benign0.41Likely Benign0.26Likely Benign-7.52Deleterious1.000Probably Damaging0.999Probably Damaging-1.35Pathogenic0.02Affected3.3735-3-28.0-0.94
c.1673A>G
H558R
2D
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AISynGAP1 missense variant H558R is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from AlphaMissense‑Optimized, Rosetta, SIFT, and polyPhen‑2 HumVar, while pathogenic predictions arise from REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, ESM1b, and FATHMM. Four tools give inconclusive results: AlphaMissense‑Default, SGM‑Consensus, FoldX, and Foldetta. High‑accuracy assessments show AlphaMissense‑Optimized predicts a benign effect, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates pathogenic, and Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, remains uncertain. Overall, the majority of evidence points toward a pathogenic impact, which does not conflict with the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.445Likely Pathogenic0.554AmbiguousLikely Benign0.587Likely Pathogenic-1.14Ambiguous0.1-0.23Likely Benign-0.69Ambiguous1.03Destabilizing-4.94Deleterious0.677Possibly Damaging0.239Benign-1.24Pathogenic0.14Tolerated3.373502-1.319.05
c.1702G>T
V568L
2D
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AIThe SynGAP1 missense variant V568L is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Among the available in‑silico predictors, eight tools (REVEL, PROVEAN, polyPhen‑2 HumDiv, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus) predict a pathogenic effect, whereas three tools (FoldX, Foldetta, and polyPhen‑2 HumVar) predict a benign outcome; the remaining three (Rosetta, premPS, AlphaMissense‑Optimized) are inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta stability outputs) as benign. Overall, the preponderance of evidence points to a pathogenic impact, which does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.503Likely Pathogenic0.921Likely PathogenicAmbiguous0.651Likely Pathogenic-0.30Likely Benign0.30.57Ambiguous0.14Likely Benign0.56Ambiguous-2.69Deleterious0.511Possibly Damaging0.147Benign-1.23Pathogenic0.04Affected3.373512-0.414.03
c.1712C>T
S571L
2D
3DClick to see structure in 3D Viewer
AISynGAP1 S571L is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33440764‑C‑T). Prediction tools cluster into two groups: benign predictions come from premPS and AlphaMissense‑Optimized, while the remaining nine tools—SGM‑Consensus, REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, and AlphaMissense‑Default—indicate pathogenicity. High‑accuracy assessments further show AlphaMissense‑Optimized as benign, SGM‑Consensus as pathogenic (a majority vote of pathogenic predictions from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN), and Foldetta as uncertain due to conflicting FoldX‑MD and Rosetta outputs. Overall, the preponderance of evidence points to a pathogenic effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33440764-C-T16.23e-7-11.651Likely Pathogenic0.660Likely PathogenicLikely Benign0.841Likely Pathogenic-1.53Ambiguous0.1-1.05Ambiguous-1.29Ambiguous0.27Likely Benign-5.61Deleterious1.000Probably Damaging0.996Probably Damaging-1.25Pathogenic0.04Affected3.3735-2-34.626.08
c.1714T>G
W572G
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant W572G is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity all converge on a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all report a pathogenic outcome. No tool in the dataset predicts a benign effect. High‑accuracy assessments reinforce this consensus: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, is pathogenic. Based on the uniform pathogenic predictions from both general and high‑accuracy tools, the variant is most likely pathogenic, a conclusion that contradicts its current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-17.692Likely Pathogenic0.997Likely PathogenicLikely Pathogenic0.900Likely Pathogenic6.57Destabilizing0.27.57Destabilizing7.07Destabilizing1.83Destabilizing-11.98Deleterious1.000Probably Damaging1.000Probably Damaging-1.24Pathogenic0.00Affected3.3735-7-20.5-129.16195.2127.90.00.0-1.00.0XPotentially PathogenicThe introduced residue Gly572, located in an α-helix (res. Arg563-Glu578), is considerably smaller than the tryptophan it replaced. The indole ring of the Trp572 side chain lies in a hydrophobic inter-helix space, where it makes extensive hydrophobic interactions with nearby residues such as Met470, Phe569, Leu588, and Ile589. In the variant simulations, all these favorable packing interactions are completely removed, as the introduced residue Gly572 essentially lacks a side chain altogether. Although not observed in the simulations, the residue swap could also weaken the integrity of the helix (res. Arg563-Glu578), as glycine is known as an “α-helix breaker.” Overall, the residue swap is highly likely to cause critical protein folding problems that are underestimated based on the effects seen in the variant simulations.
c.1715G>C
W572S
2D
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AIThe SynGAP1 missense variant W572S is listed in ClinVar as Pathogenic (ClinVar ID 1069317.0) and is not reported in gnomAD. All available in silico predictors classify the variant as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments confirm this: AlphaMissense‑Optimized predicts pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts pathogenic. Therefore, the variant is most likely pathogenic, and this prediction aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPPathogenic 1-17.461Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.775Likely Pathogenic5.78Destabilizing0.23.37Destabilizing4.58Destabilizing1.79Destabilizing-12.74Deleterious1.000Probably Damaging1.000Probably Damaging-1.24Pathogenic0.01Affected3.3735-2-30.1-99.14235.176.60.00.0-0.40.1XPotentially PathogenicThe introduced residue Ser572, located in an α-helix (res. Arg563-Glu578), is considerably smaller than the tryptophan it replaced. The indole ring of the Trp572 side chain lies in a hydrophobic inter-helix space, where it makes extensive hydrophobic interactions with nearby residues such as Met470, Phe569, Leu588, and Ile589. In the variant simulations, all these favorable packing interactions are completely removed, as the introduced residue Ser572 is too hydrophilic or small to fill the hydrophobic niche occupied by the indole ring. Moreover, the hydroxyl group of Ser572 forms hydrogen bonds with the carbonyl groups of Glu567 and Val568 within the same α-helix, potentially lowering its integrity. Overall, the residue swap is highly likely to cause critical protein folding problems that are underestimated based on the effects seen in the variant simulations.
c.1717C>T
R573W
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R573W is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that agree on a pathogenic effect include REVEL, FoldX, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools with uncertain or inconclusive results are Rosetta, Foldetta, and premPS. High‑accuracy assessments show AlphaMissense‑Optimized predicts pathogenicity, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates likely pathogenic, and Foldetta yields an uncertain stability change. Overall, the majority of evidence points to a pathogenic effect, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 8-14.078Likely Pathogenic0.995Likely PathogenicLikely Pathogenic0.758Likely Pathogenic2.37Destabilizing0.70.57Ambiguous1.47Ambiguous0.88Ambiguous-6.94Deleterious1.000Probably Damaging0.997Probably Damaging-1.48Pathogenic0.00Affected3.37352-33.630.03257.639.00.10.00.20.0XXPotentially PathogenicThe guanidinium group of Arg573, located in an α-helix (res. Arg563-Glu578), forms a salt bridge with the carboxylate groups of Glu582 and/or Asp586 from a nearby α-helix (res. Glu582-Met603) in the WT simulations. Additionally, the Arg573 side chain stacks planarly with the aromatic phenol ring of Tyr665 and hydrogen bonds with the hydroxyl group of Ser668 from another α-helix (res. Ser641-Ser668). In the variant simulations, the indole ring of the Trp573 side chain is unable to maintain the same level of coordination as the positively charged Arg573 side chain. Indeed, Trp573 is seen hydrogen bonding only briefly with the carboxylate group of Glu582. Consequently, the integrity of the opposing α-helix end (res. Glu582-Met603) is weakened. Overall, the residue swap has the potential to substantially affect the tertiary structure assembly during the protein folding process.
c.1718G>A
R573Q
2D
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AISynGAP1 missense variant R573Q is reported in ClinVar as Pathogenic (ClinVar ID 1176819.0) and is not present in gnomAD. Functional prediction tools largely agree on a deleterious effect: pathogenic predictions come from SGM‑Consensus, REVEL, FoldX, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, and AlphaMissense‑Default, while only SIFT predicts a benign outcome. Two tools give inconclusive results: Rosetta (Uncertain) and AlphaMissense‑Optimized (Uncertain). High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized remains uncertain, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is Pathogenic. Overall, the preponderance of evidence indicates the variant is most likely pathogenic, consistent with its ClinVar classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-9.900Likely Pathogenic0.923Likely PathogenicAmbiguous0.733Likely Pathogenic2.28Destabilizing0.81.94Ambiguous2.11Destabilizing1.08Destabilizing-3.16Deleterious1.000Probably Damaging0.995Probably Damaging-1.31Pathogenic0.12Tolerated3.3735111.0-28.06230.149.90.00.0-0.60.0XXPotentially PathogenicThe guanidinium group of Arg573, located in an α-helix (res. Arg563-Glu578), forms a salt bridge with the carboxylate groups of Glu582 and/or Asp586 from a nearby α-helix (res. Glu582-Met603) in the WT simulations. Additionally, the Arg573 side chain stacks planarly with the aromatic phenol ring of Tyr665 and hydrogen bonds with the hydroxyl group of Ser668 from another α-helix (res. Ser641-Ser668). In the variant simulations, although the carboxamide group of the Gln573 side chain can hydrogen bond with the carboxylate group of Glu582 or the hydroxyl group of Ser668, these interactions are not as coordinated, stable, or strong as those of the positively charged Arg573. Consequently, the integrity of the opposing α-helix end (res. Glu582-Met603) is weakened. Overall, the residue swap has the potential to substantially affect the tertiary structure assembly during the protein folding process.
c.1718G>T
R573L
2D
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AIThe SynGAP1 missense variant R573L is listed in ClinVar as Pathogenic (ClinVar ID 521291.0) and is not reported in gnomAD. Functional prediction tools that assess sequence conservation and structural impact uniformly indicate a deleterious effect: REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all classify the substitution as pathogenic. No tool in the dataset predicts a benign outcome. Predictions that rely on protein‑folding stability (FoldX, Rosetta, Foldetta, premPS) are inconclusive and are therefore treated as unavailable. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized is pathogenic; the SGM Consensus, derived from the majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, also reports pathogenic; Foldetta remains uncertain. Based on the collective evidence, the variant is most likely pathogenic, which is consistent with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-13.120Likely Pathogenic0.993Likely PathogenicLikely Pathogenic0.833Likely Pathogenic1.30Ambiguous0.61.11Ambiguous1.21Ambiguous0.80Ambiguous-5.74Deleterious1.000Probably Damaging1.000Probably Damaging-1.41Pathogenic0.01Affected3.3735-3-28.3-43.03237.460.70.00.0-0.70.3XXPotentially PathogenicThe guanidinium group of Arg573, located in an α-helix (res. Arg563-Glu578), forms a salt bridge with the carboxylate groups of Glu582 and/or Asp586 from a nearby α-helix (res. Glu582-Met603) in the WT simulations. Additionally, the Arg573 side chain stacks planarly with the aromatic phenol ring of Tyr665 and hydrogen bonds with the hydroxyl group of Ser668 from another α-helix (res. Ser641-Ser668). In the variant simulations, the aliphatic iso-butyl group of the Leu573 side chain fails to establish any of these interactions, which, in turn, lowers the integrity of the opposing α-helix end (res. Glu582-Met603). Overall, the residue swap has the potential to substantially affect the tertiary structure assembly during the protein folding process.10.1016/j.ajhg.2020.11.011
c.1723C>T
R575C
2D
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AIThe SynGAP1 missense variant R575C is listed in ClinVar with an “Uncertain” status (ClinVar ID 537013.0) and is present in gnomAD (ID 6‑33440775‑C‑T). Prediction tools that indicate a benign effect include only AlphaMissense‑Optimized. All other evaluated algorithms predict a pathogenic impact: REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). Four tools (FoldX, Rosetta, Foldetta, premPS) returned uncertain results and are treated as unavailable evidence. High‑accuracy assessments show AlphaMissense‑Optimized as benign, SGM‑Consensus as likely pathogenic, and Foldetta as uncertain. Overall, the majority of predictions support a pathogenic effect. Thus, the variant is most likely pathogenic, which is consistent with the ClinVar “Uncertain” classification rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 36-33440775-C-T231.43e-5-11.179Likely Pathogenic0.630Likely PathogenicLikely Benign0.715Likely Pathogenic1.39Ambiguous0.20.50Ambiguous0.95Ambiguous0.73Ambiguous-5.43Deleterious1.000Probably Damaging1.000Probably Damaging-1.30Pathogenic0.02Affected3.3735-4-37.0-53.05227.799.20.00.00.00.1XPotentially PathogenicThe guanidinium group of Arg575, located in an α-helix (res. Arg563-Glu578), forms salt bridges with the carboxylate groups of Asp463 and Asp467, and it also hydrogen bonds with the hydroxyl group of Ser466 on an opposing α-helix (res. Ala461-Phe476) in the WT simulations. In the variant simulations, the thiol group of the Cys575 side chain, which is neither positively charged nor particularly hydrophilic, packs against the hydrophobic Met470 on an opposing α-helix (res. Ala461-Arg475). Additionally, although the thiol group is not an effective hydrogen bonder, the Cys575 side chain rotates to hydrogen bond with the backbone carbonyl group of Ser571 in the same α-helix, which could theoretically lower the helix integrity. Overall, the residue swap has the potential to substantially affect the tertiary structure assembly during the protein folding process.
c.1724G>A
R575H
2D
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AISynGAP1 missense variant R575H (ClinVar ID 1029088.0) is listed as Uncertain in ClinVar and is present in gnomAD (ID 6‑33440776‑G‑A). Prediction tools that indicate a benign effect include Rosetta, Foldetta, PROVEAN, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are REVEL, premPS, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, and FATHMM. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, classifies the variant as Pathogenic. High‑accuracy assessments show AlphaMissense‑Optimized as Benign, Foldetta as Benign, and the SGM Consensus as Pathogenic. Overall, the majority of evidence points to a pathogenic impact, which contrasts with the ClinVar designation of Uncertain.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPConflicting 46-33440776-G-A2041.27e-4-11.142Likely Pathogenic0.496AmbiguousLikely Benign0.707Likely Pathogenic0.81Ambiguous0.2-0.22Likely Benign0.30Likely Benign1.31Destabilizing-2.34Neutral1.000Probably Damaging0.998Probably Damaging-1.33Pathogenic0.05Affected3.3735201.3-19.05244.780.60.00.00.30.0XPotentially PathogenicThe guanidinium group of Arg575, located in an α-helix (res. Arg563-Glu578), forms salt bridges with the carboxylate groups of Asp463 and Asp467, and it also hydrogen bonds with the hydroxyl group of Ser466 on an opposing α-helix (res. Ala461-Phe476) in the WT simulations. In the variant simulations, the imidazole ring of His575 (in its neutral epsilon protonated form) cannot form the same salt bridges as the guanidinium group of the non-mutated Arg575. Instead, His575 only forms weak hydrogen bonds with the hydroxyl groups of Ser466 and Ser571. Overall, the residue swap has the potential to substantially affect the tertiary structure assembly during the protein folding process.
c.1726T>C
C576R
2D
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AISynGAP1 missense variant C576R is listed in ClinVar with an uncertain significance (ClinVar ID 2780076.0) and is not reported in gnomAD. Prediction tools that classify the variant as benign include only FATHMM. All other evaluated algorithms—REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN)—predict it to be pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized scores it pathogenic, the SGM‑Consensus (derived from the majority of high‑confidence predictors) is pathogenic, and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, also predicts pathogenicity. Taken together, the overwhelming majority of computational evidence indicates that C576R is likely pathogenic, a conclusion that is consistent with, but not in conflict with, the current ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 2-14.886Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.579Likely Pathogenic7.20Destabilizing1.04.09Destabilizing5.65Destabilizing1.64Destabilizing-10.88Deleterious0.999Probably Damaging0.996Probably Damaging3.38Benign0.00Affected3.3735-3-4-7.053.05
c.1729G>A
A577T
2D
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AISynGAP1 missense variant A577T is listed in ClinVar as benign (ClinVar ID 2195056.0) and is present in gnomAD (ID 6‑33440781‑G‑A). Functional prediction tools that agree on a benign effect include REVEL, PROVEAN, SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and FATHMM. The SGM‑Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a likely benign outcome. High‑accuracy assessments show AlphaMissense‑Optimized as benign, SGM‑Consensus as likely benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as uncertain. No other high‑confidence stability predictions are available. Overall, the consensus of the available predictions indicates that the variant is most likely benign, which aligns with its ClinVar classification and does not contradict the reported status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPBenign 16-33440781-G-A63.72e-6-5.311Likely Benign0.322Likely BenignLikely Benign0.427Likely Benign0.86Ambiguous0.10.54Ambiguous0.70Ambiguous0.54Ambiguous-1.47Neutral0.999Probably Damaging0.987Probably Damaging-1.31Pathogenic0.47Tolerated3.373410-2.530.03191.9-43.40.00.00.70.1XPotentially BenignAla577 is located near the end and outer surface of an α-helix (res. Arg563-Glu578), where its methyl group does not form any particular interactions in the WT simulations. In the variant simulations, the hydroxyl group of the Thr577 side chain hydrogen bonds with the backbone atoms of Arg573 and Lys574 within the same helix, which has the potential to weaken the stability of the secondary structure element. Regardless, the residue swap seems to be well tolerated based on the variant simulations.
c.172A>G
M58V
2D
AIThe SynGAP1 missense variant M58V is listed in ClinVar (ID 2962156.0) with an uncertain significance status and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are SIFT and AlphaMissense‑Default. The high‑accuracy consensus from AlphaMissense‑Optimized, SGM Consensus (derived from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN), and Foldetta (protein‑folding stability) is available only for the first two; Foldetta data are missing. The SGM Consensus, based on a majority of benign predictions, indicates a likely benign outcome. Overall, the majority of evidence points to a benign impact, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 1-2.211Likely Benign0.688Likely PathogenicLikely Benign0.160Likely Benign-0.71Neutral0.006Benign0.091Benign4.19Benign0.00Affected4.321122.3-32.06
c.1736G>A
R579Q
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant R579Q is listed in ClinVar with an uncertain significance (ClinVar ID 3964539.0) and is present in gnomAD (variant ID 6‑33440788‑G‑A). Prediction tools that classify the variant as benign include SIFT and AlphaMissense‑Optimized, whereas the majority of other in‑silico predictors (SGM‑Consensus, REVEL, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, AlphaMissense‑Default) predict it to be pathogenic. High‑accuracy assessments further support this view: AlphaMissense‑Optimized reports a benign effect, SGM‑Consensus (derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) predicts pathogenicity, and Foldetta, which integrates FoldX‑MD and Rosetta outputs, yields an inconclusive result. FoldX and Rosetta individually report uncertain effects. Overall, the preponderance of evidence from both general and high‑accuracy tools indicates that R579Q is most likely pathogenic, which is consistent with its ClinVar status of uncertain significance rather than a benign classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33440788-G-A181.12e-5-9.193Likely Pathogenic0.690Likely PathogenicLikely Benign0.673Likely Pathogenic0.65Ambiguous0.10.70Ambiguous0.68Ambiguous1.13Destabilizing-3.31Deleterious1.000Probably Damaging0.995Probably Damaging-1.34Pathogenic0.06Tolerated3.3734111.0-28.06
c.1738G>A
G580S
2D
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AIThe SynGAP1 missense variant G580S is listed in ClinVar with an “Uncertain” status (ClinVar ID 1487029.0) and is present in the gnomAD database (gnomAD ID 6‑33440790‑G‑A). Among the available in‑silico predictors, the majority (REVEL, FoldX, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, AlphaMissense‑Default) indicate a pathogenic effect, whereas only SIFT predicts a benign outcome. Predictions that are inconclusive or uncertain include Rosetta, Foldetta, premPS, AlphaMissense‑Optimized, and the SGM‑Consensus (which is derived from the pathogenic majority of the four contributing tools). High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, SGM‑Consensus as pathogenic (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN), and Foldetta as uncertain (combining a pathogenic FoldX result with an uncertain Rosetta result). Overall, the preponderance of evidence points to a pathogenic effect, which is in contrast to the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33440790-G-A16.20e-7-10.788Likely Pathogenic0.861Likely PathogenicAmbiguous0.644Likely Pathogenic2.84Destabilizing0.20.59Ambiguous1.72Ambiguous0.87Ambiguous-5.73Deleterious1.000Probably Damaging0.999Probably Damaging-1.23Pathogenic0.07Tolerated3.373410-0.430.03233.9-49.30.80.00.60.1XPotentially BenignGly580 is located on the outer surface in a short α-α loop turn connecting two α-helices (res. Arg563-Glu578, res. Glu582-Phe608) in the WT simulations. In the variant simulations, the side chain of Ser580 faces outward, and its hydroxyl group does not make any new or additional interactions compared to Gly580 in the WT simulations that could affect the protein structure.
c.1742G>A
R581Q
2D
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AISynGAP1 missense variant R581Q is reported in ClinVar as benign (ClinVar ID 1388591.0) and is present in gnomAD (ID 6‑33440794‑G‑A). Prediction tools that agree on a benign effect include REVEL, Rosetta, Foldetta, SIFT, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). High‑accuracy assessments show AlphaMissense‑Optimized as benign, SGM‑Consensus as pathogenic, and Foldetta as benign. No other high‑confidence stability predictions are available. Overall, the predictions are mixed, with a slight bias toward benign outcomes from the majority of tools and the high‑accuracy AlphaMissense‑Optimized and Foldetta results. Therefore, the variant is most likely benign based on the current computational evidence, which is consistent with its ClinVar benign classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPBenign 16-33440794-G-A84.96e-6-7.584In-Between0.673Likely PathogenicLikely Benign0.481Likely Benign1.31Ambiguous0.1-0.42Likely Benign0.45Likely Benign0.88Ambiguous-2.77Deleterious1.000Probably Damaging0.995Probably Damaging-1.21Pathogenic0.11Tolerated3.3734111.0-28.06239.653.5-0.20.2-0.40.1XPotentially PathogenicArg581 is located on a short α-α loop between two α helices (res. Arg563-Glu578 and res. Glu582-Ser604). In the WT simulations, the guanidinium group of Arg581 forms salt bridges with the carboxylate groups of Asp583 within the same helix, as well as with Glu478 and/or Glu480 on a slightly α-helical loop (res. Glu478-Thr488) preceding another α helix (res. Ala461-Phe476).In the variant simulations, the neutral carboxamide group of the Gln581 side chain cannot form any of these salt bridges. Instead, it packs hydrophobically against Met477 and Ile587 or forms hydrogen bonds sporadically with nearby residues (e.g., Asp583, Arg587). Thus, although no drastic changes are observed in the variant simulations, the residue swap could weaken the tertiary structure assembly.
c.1760G>C
R587T
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R587T is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include SIFT and AlphaMissense‑Optimized, whereas a majority of tools (REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus) predict a pathogenic outcome. Uncertain predictions from FoldX, Rosetta, Foldetta, and premPS are treated as unavailable. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta as uncertain. Overall, the preponderance of evidence points to a pathogenic effect for R587T, which does not contradict the ClinVar “Uncertain” classification but suggests that the variant is more likely pathogenic rather than benign.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.697Likely Pathogenic0.784Likely PathogenicLikely Benign0.603Likely Pathogenic1.14Ambiguous0.20.74Ambiguous0.94Ambiguous0.98Ambiguous-4.71Deleterious0.998Probably Damaging0.847Possibly Damaging-1.19Pathogenic0.08Tolerated3.3735-1-13.8-55.08227.287.40.00.00.50.1XPotentially PathogenicThe guanidinium group of Arg587, located on an α helix (res. Glu582-Met603), is constantly rotating and breaking/forming multiple hydrogen bonds and/or salt bridges at the surface intersection of α helices in the WT simulations. The positively charged Arg587 side chain can form a salt bridge with either the carboxylate group of Asp583 or Asp586 in the same helix, or with Glu480 on the opposing short helical loop structure (res. Glu480-Leu482).Importantly, the Arg587 side chain also hydrogen bonds with the backbone carbonyl groups of Ala634 and Asn635, as well as the carboxamide group of Asn635 at the end of another α helix (res. Asp616-Phe636). However, in the variant simulations, the neutral hydroxyl group of the Thr587 side chain is unable to form these salt bridges. Due to its smaller size, it also does not form the hydrogen bonds that the Arg587 side chain could. Instead, the hydroxyl group of Thr587 hydrogen bonds with the backbone carbonyl group of Asp583, which could weaken the integrity of the α helix, although this is not observed in the simulations.Overall, the residue swap could weaken the tertiary structure assembly and negatively affect the overall protein folding process.
c.1763T>A
L588H
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L588H is listed in ClinVar (ID 422233.0) as Pathogenic and is not reported in gnomAD. All available in silico predictors classify the change as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments confirm this: AlphaMissense‑Optimized predicts Pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) yields Likely Pathogenic; and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts Pathogenic. Thus, the variant is most likely pathogenic, and this prediction aligns with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-16.947Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.939Likely Pathogenic4.20Destabilizing0.23.69Destabilizing3.95Destabilizing2.26Destabilizing-6.97Deleterious1.000Probably Damaging1.000Probably Damaging-1.42Pathogenic0.00Affected3.3834-2-3-7.023.98214.320.90.00.00.00.2XXXPotentially PathogenicThe isobutyl group of the Leu588 side chain, located in an α helix (res. Glu582-Met603), packs against hydrophobic residues in the inter-helix hydrophobic space (e.g., Ile584, Trp572, Phe484, Met470, Val473, Ile483).In the variant simulations, the imidazole ring of His588 is aromatic but contains polar delta and epsilon nitrogen atoms that are not suited for the hydrophobic niche. The protonated epsilon nitrogen forms a hydrogen bond with the backbone carbonyl group of Ala469, which can disrupt the continuity of the opposing α helix (res. Phe476-Lys460).While the residue swap could affect the tertiary assembly and the underlying protein folding process, it is difficult to determine if the mutation would be tolerated based solely on the variant simulations.
c.1763T>C
L588P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L588P is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity all converge on a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all predict pathogenicity. No tool in the dataset predicts a benign outcome. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, is pathogenic. Based on the unanimous computational evidence, the variant is most likely pathogenic, a conclusion that contradicts the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.771Likely Pathogenic1.000Likely PathogenicLikely Pathogenic0.932Likely Pathogenic5.61Destabilizing0.512.91Destabilizing9.26Destabilizing2.33Destabilizing-6.97Deleterious1.000Probably Damaging1.000Probably Damaging-1.42Pathogenic0.00Affected3.3834-3-3-5.4-16.04
c.1767C>G
I589M
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant I589M is listed in ClinVar with an uncertain significance (ClinVar ID 964298.0) and is not reported in gnomAD. Functional prediction tools that provide a definitive call overwhelmingly predict a deleterious effect: REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, and AlphaMissense‑Default all indicate pathogenicity, and the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also reports a likely pathogenic outcome. Tools that are inconclusive—FoldX, Rosetta, Foldetta, and AlphaMissense‑Optimized—are listed as uncertain and do not influence the overall assessment. High‑accuracy methods specifically show AlphaMissense‑Optimized as uncertain, SGM Consensus as likely pathogenic, and Foldetta as uncertain. Taken together, the majority of available predictions support a pathogenic effect, which is consistent with the ClinVar uncertain designation rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-12.225Likely Pathogenic0.926Likely PathogenicAmbiguous0.830Likely Pathogenic0.74Ambiguous0.21.54Ambiguous1.14Ambiguous1.33Destabilizing-2.99Deleterious1.000Probably Damaging1.000Probably Damaging-1.94Pathogenic0.00Affected3.373521-2.618.03267.6-24.50.00.0-0.10.1XPotentially BenignA hydrophobic residue, Ile589, located in an α helix (res. Glu582-Met603), is swapped for another hydrophobic residue, methionine. The sec-butyl hydrocarbon side chain of Ile589 packs favourably with multiple residues in the inter-helix hydrophobic space (e.g., Phe569, Ile667, and Leu664).Although the S-methyl thioether group of the Met589 side chain in the variant is longer than the branched side chain of isoleucine, it stacks favourably with the aromatic phenol ring. Additionally, the polar sulphur atom forms a weak hydrogen bond with the guanidinium group of Arg573, which in turn forms a salt bridge with the carboxylate group of Asp586.Overall, the hydrophobic packing in the inter-helix space does not appear to be disrupted in the variant simulations.
c.1768A>G
S590G
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant S590G is listed in ClinVar (ID 1721675.0) with an uncertain significance status and is present in gnomAD (6‑33440820‑A‑G). Functional prediction tools that report a benign effect include REVEL, SIFT, FATHMM, and AlphaMissense‑Optimized. Those that predict a pathogenic effect are PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, AlphaMissense‑Default, and ESM1b. The high‑accuracy consensus (SGM Consensus) derived from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN yields a pathogenic majority. Foldetta, which integrates FoldX‑MD and Rosetta outputs, is inconclusive, as are FoldX, Rosetta, and premPS. Overall, the majority of evidence points toward a pathogenic impact, which does not contradict the ClinVar uncertain status but suggests a higher likelihood of pathogenicity.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 26-33440820-A-G148.67e-6-14.277Likely Pathogenic0.574Likely PathogenicLikely Benign0.379Likely Benign0.67Ambiguous0.11.28Ambiguous0.98Ambiguous0.71Ambiguous-3.92Deleterious1.000Probably Damaging0.922Probably Damaging3.42Benign0.06Tolerated3.3735100.4-30.03186.749.40.00.00.10.0XPotentially PathogenicIn the WT simulations, the hydroxyl group of Ser590, located on an α helix (res. Glu582-Met603), forms hydrogen bonds with the backbone carbonyl of Ala634 and/or the carboxamide group of the Asn635 side chain at the end of the opposing α helix (res. Thr619-Ala634).The residue swap could weaken the integrity of the α helix, as glycine is known as an “α helix breaker.” However, no discernible difference was observed between the WT and variant simulations in this regard. Importantly, Gly590 cannot form hydrogen bonds with the opposing helix in the same way that serine can, which could weaken the tertiary structure assembly between the two helices.
c.1771G>A
A591T
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant A591T is listed in ClinVar with an uncertain significance designation and is observed in gnomAD (variant ID 6‑33440823‑G‑A). Functional prediction tools cluster into two groups: benign predictions come from REVEL, polyPhen‑2 HumVar, FATHMM, and AlphaMissense‑Optimized; pathogenic predictions come from premPS, PROVEAN, polyPhen‑2 HumDiv, SIFT, ESM1b, and AlphaMissense‑Default. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a likely pathogenic outcome. High‑accuracy assessments further show AlphaMissense‑Optimized as benign, SGM Consensus as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as uncertain. No other folding‑stability metrics are available. Overall, the balance of evidence favors a pathogenic interpretation, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 36-33440823-G-A181.12e-5-9.572Likely Pathogenic0.704Likely PathogenicLikely Benign0.270Likely Benign1.61Ambiguous0.21.00Ambiguous1.31Ambiguous1.19Destabilizing-3.40Deleterious0.955Possibly Damaging0.209Benign3.48Benign0.01Affected3.373510-2.530.03202.9-43.40.20.00.70.1XPotentially BenignThe methyl group of the Ala591 side chain, located in the middle of an α helix (res. Glu582-Met603), packs against hydrophobic residues (e.g., Ile483, Phe484) of an opposing partially helical loop (res. Phe476-Asn487).In the variant simulations, the hydroxyl group of Thr591 can form hydrogen bonds with the backbone carbonyl of Ile843 in the opposing loop or the backbone carbonyl group of Arg587. These interactions could either reinforce the tertiary assembly or weaken the α helix unity. Additionally, the Thr591 side chain can hydrogen bond with the guanidinium group of the Arg587 side chain, potentially strengthening the α helix unity.Overall, the residue swap does not seem to cause any major negative effects on the protein structure.
c.1771G>C
A591P
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant A591P is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools largely converge on a pathogenic effect: pathogenic predictions come from FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and the SGM‑Consensus (Likely Pathogenic). Benign predictions are limited to REVEL and FATHMM. High‑accuracy assessments reinforce the pathogenic view: AlphaMissense‑Optimized predicts pathogenic, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is Likely Pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) also indicates pathogenic. Consequently, the variant is most likely pathogenic, a conclusion that contrasts with its ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-14.479Likely Pathogenic0.991Likely PathogenicLikely Pathogenic0.404Likely Benign3.78Destabilizing0.37.29Destabilizing5.54Destabilizing1.45Destabilizing-4.41Deleterious0.995Probably Damaging0.853Possibly Damaging3.35Benign0.01Affected3.37351-1-3.426.04191.5-10.10.20.10.40.1XPotentially PathogenicThe methyl group of the Ala591 side chain, located in the middle of an α helix (res. Glu582-Met603), packs against hydrophobic residues (e.g., Ile483, Phe484) of an opposing partially helical loop (res. Phe476-Asn487).In the variant simulations, Pro591 lacks a free backbone amide group and, therefore, cannot form a hydrogen bond with the backbone carbonyl of Arg587 as Ala591 does in the WT. This notably weakens the α helix integrity and compromises the continuity of the helix. In reality, the effect on the structure during protein folding could be more severe.
c.1778T>A
L593H
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L593H is listed in ClinVar with an uncertain significance and is not present in gnomAD. In silico predictors that classify the variant as benign include only FATHMM. All other evaluated tools—REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized—predict a pathogenic effect. High‑accuracy methods further support pathogenicity: AlphaMissense‑Optimized is pathogenic; the SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, is pathogenic. No prediction or stability result is missing or inconclusive. Overall, the variant is most likely pathogenic based on the consensus of predictions, and this assessment does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-16.504Likely Pathogenic0.998Likely PathogenicLikely Pathogenic0.812Likely Pathogenic2.52Destabilizing0.22.32Destabilizing2.42Destabilizing2.75Destabilizing-6.77Deleterious1.000Probably Damaging1.000Probably Damaging2.77Benign0.00Affected3.3735-2-3-7.023.98222.020.70.00.00.20.0XXPotentially PathogenicThe iso-propyl side chain of Leu593, located in an α helix (res. Glu582-Met603), packs favourably with multiple hydrophobic residues in the inter-helix space (e.g., Leu598, Ile589, Phe594, Phe561).In the variant simulations, His593 retains a similar packing arrangement via its aromatic imidazole ring. However, the polar nitrogen atoms introduce hydrogen bond donors and acceptors into the previously hydrophobic space. The epsilon protonated nitrogen of His593 forms a stable hydrogen bond with the phenol group of the Tyr505 side chain in an α helix (res. Gln503-Tyr518).While the residue swap could affect the tertiary assembly and the underlying protein folding process, it is difficult to determine if the mutation would be tolerated based solely on the variant simulations.
c.1778T>C
L593P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L593P is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include only FATHMM, whereas all other evaluated algorithms (SGM‑Consensus, REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default) predict a pathogenic outcome. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized scores the variant as pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability predictions, also classifies the variant as pathogenic. Based on the overwhelming consensus of pathogenic predictions, the variant is most likely pathogenic, a conclusion that contradicts its current ClinVar “Uncertain” status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-13.961Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.777Likely Pathogenic5.75Destabilizing0.910.77Destabilizing8.26Destabilizing2.43Destabilizing-6.77Deleterious1.000Probably Damaging1.000Probably Damaging2.77Benign0.00Affected-3-3-5.4-16.04
c.1784T>A
L595Q
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant L595Q is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that classify the variant as benign include only FATHMM. All other evaluated algorithms—REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized—predict a pathogenic effect, and the SGM‑Consensus score indicates a likely pathogenic outcome. High‑accuracy assessments further support a deleterious impact: AlphaMissense‑Optimized returns a pathogenic prediction, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) also yields a likely pathogenic result, while Foldetta’s stability analysis is inconclusive. Overall, the majority of computational evidence points to a pathogenic effect, which does not contradict the ClinVar designation of uncertain significance but suggests a higher likelihood of pathogenicity.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-15.101Likely Pathogenic0.984Likely PathogenicLikely Pathogenic0.733Likely Pathogenic0.79Ambiguous0.11.40Ambiguous1.10Ambiguous1.99Destabilizing-5.97Deleterious1.000Probably Damaging1.000Probably Damaging2.75Benign0.00Affected3.3735-2-2-7.314.97
c.1784T>C
L595P
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L595P is listed in ClinVar with an “Uncertain” status (ClinVar ID 3172762.0) and is not reported in gnomAD. Prediction tools that agree on a benign effect include only FATHMM, whereas all other evaluated algorithms (REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus) predict a pathogenic outcome. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized is pathogenic, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) is pathogenic. No prediction or folding stability result is missing or inconclusive. Based on the collective evidence, the variant is most likely pathogenic, which does not contradict the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-11.856Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.747Likely Pathogenic2.09Destabilizing0.85.88Destabilizing3.99Destabilizing1.78Destabilizing-6.97Deleterious1.000Probably Damaging1.000Probably Damaging2.72Benign0.00Affected3.3735-3-3-5.4-16.04
c.1786C>T
R596C
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant R596C is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33440838‑C‑T). Prediction tools that indicate a benign effect include only premPS. All other evaluated algorithms—REVEL, FoldX, Foldetta, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus—classify the variant as pathogenic or likely pathogenic, while Rosetta remains inconclusive. High‑accuracy assessments further support a deleterious impact: AlphaMissense‑Optimized predicts pathogenic; the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) indicates likely pathogenic; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, also predicts pathogenic. **Thus, the variant is most likely pathogenic based on the collective predictions, which does not contradict the ClinVar uncertain status.**

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 26-33440838-C-T63.72e-6-10.805Likely Pathogenic0.972Likely PathogenicLikely Pathogenic0.633Likely Pathogenic2.94Destabilizing0.01.49Ambiguous2.22Destabilizing-0.03Likely Benign-7.96Deleterious1.000Probably Damaging1.000Probably Damaging2.41Pathogenic0.00Affected3.3735-4-37.0-53.05230.797.9-0.10.0-0.30.4XXPotentially PathogenicThe guanidinium group of Arg596, located in an α helix (res. Glu582-Met603), forms a salt bridge with the carboxylate group of Glu495 from another α helix (res. Leu489-Glu519). In the WT simulations, the side chain of Arg596 hydrogen bonds with the backbone carbonyl groups of Asn487, Glu486, Arg485, and Phe484. Additionally, Arg596 can hydrogen bond with the carboxamide group of the Asn487 side chain on an opposing loop that links two α helices (res. Ala461-Arg475, res. Leu489-Glu519).In the variant simulations, the thiol group of the Cys596 side chain is unable to form salt bridges or any of the hydrogen bonds that the Arg596 side chain can. Thus, the residue swap could affect the tertiary structure assembly more profoundly than observed in the simulations. Notably, Arg596 plays a key role in positioning the aforementioned loop, which is crucial for the placement of the “arginine finger” or the Arg485 side chain during RasGTPase activation.
c.1787G>A
R596H
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant R596H is listed in ClinVar as benign (ClinVar ID 1989474.0) and is present in gnomAD (ID 6‑33440839‑G‑A). Functional prediction tools largely agree on a deleterious effect: REVEL, FoldX, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and the SGM‑Consensus all report pathogenicity, while only Rosetta predicts a benign outcome. Two tools are inconclusive: AlphaMissense‑Optimized and Foldetta. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, SGM‑Consensus (derived from the four pathogenic votes) as pathogenic, and Foldetta as uncertain. Overall, the majority of evidence points to a pathogenic impact, directly contradicting the ClinVar benign classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Benign 16-33440839-G-A159.29e-6-11.128Likely Pathogenic0.950Likely PathogenicAmbiguous0.717Likely Pathogenic3.00Destabilizing0.90.43Likely Benign1.72Ambiguous1.35Destabilizing-4.97Deleterious1.000Probably Damaging0.999Probably Damaging2.43Pathogenic0.00Affected3.3735201.3-19.05223.580.5-0.10.0-0.10.3XXPotentially PathogenicThe guanidinium group of Arg596, located in an α helix (res. Glu582-Met603), forms a salt bridge with the carboxylate group of Glu495 from another α helix (res. Leu489-Glu519). In the WT simulations, the side chain of Arg596 hydrogen bonds with the backbone carbonyl groups of Asn487, Glu486, Arg485, and Phe484. Additionally, Arg596 can hydrogen bond with the carboxamide group of the Asn487 side chain on an opposing loop that links two α helices (res. Ala461-Arg475, res. Leu489-Glu519).In the variant simulations, the imidazole ring of His596 can form hydrogen bonds with the same residues as arginine; however, these interactions are not as coordinated or strong in comparison. Thus, the residue swap could affect the tertiary structure assembly more profoundly than observed in the simulations. Notably, Arg596 plays a key role in positioning the aforementioned loop, which is crucial for the placement of the “arginine finger” or the Arg485 side chain during RasGTPase activation.
c.1787G>T
R596L
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 R596L missense variant is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect are Foldetta and premPS, whereas the remaining pathogenic‑predicting tools—REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN)—all indicate a deleterious impact. High‑accuracy assessments further support this: AlphaMissense‑Optimized predicts pathogenicity, the SGM‑Consensus (derived from the same four high‑confidence predictors) also indicates likely pathogenic, while Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, predicts a benign effect. Overall, the preponderance of evidence points to a pathogenic effect for R596L, which is consistent with the ClinVar “Uncertain” classification rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-13.197Likely Pathogenic0.992Likely PathogenicLikely Pathogenic0.756Likely Pathogenic1.51Ambiguous0.3-0.58Ambiguous0.47Likely Benign-0.02Likely Benign-6.97Deleterious1.000Probably Damaging1.000Probably Damaging2.45Pathogenic0.00Affected3.3735-3-28.3-43.03234.263.4-0.10.0-0.50.6XXPotentially PathogenicThe guanidinium group of Arg596, located in an α helix (res. Glu582-Met603), forms a salt bridge with the carboxylate group of Glu495 from another α helix (res. Leu489-Glu519). In the WT simulations, the side chain of Arg596 hydrogen bonds with the backbone carbonyl groups of Asn487, Glu486, Arg485, and Phe484. Additionally, Arg596 can hydrogen bond with the carboxamide group of the Asn487 side chain on an opposing loop that links two α helices (res. Ala461-Arg475, res. Leu489-Glu519).However, in the variant simulations, the branched hydrocarbon side chain of Leu596 cannot form any of the hydrogen bonds or salt bridges maintained by the considerably bulkier and positively charged Arg596 side chain. Instead, Leu596 packs hydrophobically with the phenyl ring of Phe484 in the linker loop or residues from the opposing helix (e.g., Ile494, Thr491).Thus, the residue swap could affect the tertiary structure assembly more profoundly than observed in the simulations. Notably, Arg596 plays a key role in positioning the aforementioned loop, which is crucial for the placement of the “arginine finger” or the Arg485 side chain during RasGTPase activation.10.1016/j.ajhg.2020.11.011
c.1789T>C
F597L
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant F597L is listed in ClinVar with an uncertain significance (ClinVar ID 3658115.0) and is not reported in gnomAD. Prediction tools that classify the variant as benign include only SIFT, whereas the remaining tools—SGM‑Consensus, REVEL, Rosetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized—predict it to be pathogenic. The high‑accuracy AlphaMissense‑Optimized score is pathogenic, and the SGM‑Consensus (a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) also indicates likely pathogenic. Foldetta, which integrates FoldX‑MD and Rosetta stability outputs, is inconclusive. Overall, the preponderance of evidence points to a pathogenic effect for F597L, which is consistent with its ClinVar uncertain status rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-10.173Likely Pathogenic0.998Likely PathogenicLikely Pathogenic0.929Likely Pathogenic0.74Ambiguous0.12.12Destabilizing1.43Ambiguous1.20Destabilizing-5.97Deleterious0.999Probably Damaging0.994Probably Damaging-2.06Pathogenic0.13Tolerated201.0-34.02
c.1792C>G
L598V
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant L598V is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that classify the variant as benign include REVEL, FATHMM, and AlphaMissense‑Optimized, whereas pathogenic predictions are made by premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, and AlphaMissense‑Default. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, indicates a likely pathogenic effect. High‑accuracy assessments show AlphaMissense‑Optimized as benign, SGM Consensus as likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as inconclusive. Overall, the majority of evidence points to a pathogenic impact, which contrasts with the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-10.002Likely Pathogenic0.578Likely PathogenicLikely Benign0.221Likely Benign1.89Ambiguous0.11.58Ambiguous1.74Ambiguous1.01Destabilizing-2.92Deleterious0.944Possibly Damaging0.786Possibly Damaging3.21Benign0.02Affected3.3735210.4-14.03218.429.60.00.00.80.0XPotentially BenignThe iso-butyl side chain of Leu598, located on an α helix (res. Glu582-Met603), packs hydrophobically with other hydrophobic residues in the inter-helix space (e.g., Ile602, Phe594, Ile510).In the variant simulations, Val598, which has similar size and physicochemical properties to leucine, resides in the inter-helix hydrophobic space in a similar manner to Leu598 in the WT. This causes no negative effects on the protein structure.
c.1802C>A
A601E
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant A601E is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that assess pathogenicity largely agree: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized all predict a pathogenic effect, while only FATHMM predicts a benign outcome. High‑accuracy assessments reinforce this consensus: AlphaMissense‑Optimized indicates pathogenicity; the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) reports “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta stability calculations, also predicts pathogenicity. No predictions or stability results are missing or inconclusive. Based on the overwhelming agreement among these tools, the variant is most likely pathogenic, which does not contradict its current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPConflicting 2-16.752Likely Pathogenic0.992Likely PathogenicLikely Pathogenic0.588Likely Pathogenic6.68Destabilizing0.85.76Destabilizing6.22Destabilizing1.24Destabilizing-4.98Deleterious1.000Probably Damaging0.999Probably Damaging2.54Benign0.00Affected3.37350-1-5.358.04240.0-82.30.00.00.70.1XXXPotentially PathogenicThe methyl side chain of Ala601, located on an α helix (res. Glu582-Met603), packs hydrophobically against other hydrophobic residues in the inter-helix space (e.g., Phe597, Leu598, Leu506, Phe608).In the variant simulations, the carboxylate group of Glu601 faces the inter-helix space and is forced to shift slightly away from the hydrophobic niche. Additionally, in two of the simulations, Glu601 forms a salt bridge with Arg499, causing the otherwise stable salt bridge between Arg499 and Glu496 at the outer surface of an α helix (res. Leu489-Glu519) to break due to the residue swap.These effects suggest that the protein folding process could be seriously affected. Moreover, due to its location at the GAP-Ras interface, it could also impact the complex formation with the GTPase.
c.1802C>T
A601V
2D
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AIThe SynGAP1 missense variant A601V is listed in ClinVar (ID 968190.0) with an uncertain clinical significance and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from Rosetta and FATHMM, while pathogenic predictions are made by REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and the SGM‑Consensus score. Four tools (FoldX, Foldetta, premPS, AlphaMissense‑Optimized) give uncertain or inconclusive results. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta as uncertain. Overall, the majority of evidence points to a pathogenic effect, which is consistent with the ClinVar designation of uncertain significance rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-10.447Likely Pathogenic0.853Likely PathogenicAmbiguous0.535Likely Pathogenic1.64Ambiguous0.10.35Likely Benign1.00Ambiguous0.81Ambiguous-3.98Deleterious1.000Probably Damaging0.989Probably Damaging2.74Benign0.03Affected3.3735002.428.05228.5-45.50.00.00.40.5XPotentially BenignThe methyl side chain of Ala601, located on an α helix (res. Glu582-Met603), packs hydrophobically against other hydrophobic residues in the inter-helix space (e.g., Phe597, Leu598, Leu506, Phe608).In the variant simulations, Val601, which has similar size and physicochemical properties to alanine, resides in the inter-helix hydrophobic space in a similar manner to Ala601 in the WT, causing no apparent negative effect on the protein structure. However, the effect of the residue swap on the SynGAP-Ras complex formation or GTPase activation cannot be fully addressed using the SynGAP solvent-only simulations.
c.1811C>T
S604L
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant S604L is listed in ClinVar with an “Uncertain” status (ClinVar ID 1055027.0) and is present in gnomAD (ID 6‑33440863‑C‑T). Prediction tools that agree on a benign effect are premPS and FATHMM. Tools that predict a pathogenic effect include REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. FoldX, Rosetta, and Foldetta give uncertain results. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as Likely Pathogenic, and Foldetta as uncertain. Overall, the majority of evidence points to a pathogenic impact, which does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 16-33440863-C-T63.72e-6-14.683Likely Pathogenic0.965Likely PathogenicLikely Pathogenic0.639Likely Pathogenic-0.94Ambiguous0.1-1.24Ambiguous-1.09Ambiguous-0.31Likely Benign-5.97Deleterious1.000Probably Damaging0.991Probably Damaging3.09Benign0.00Affected3.3735-3-24.626.08234.0-49.60.00.10.30.5XXPotentially PathogenicSer604 is located in a short turn between an α helix (res. Glu582-Met603) and a short α helical section (res. Ser606-Phe608). In the WT simulations, the hydroxyl side chain of Ser604 periodically hydrogen bonds with the backbone carbonyl groups of other α helix residues (e.g., Pro600, Met603). Serine weakens the α helix secondary structure, and thus, Ser604 along with Pro605 breaks the α helix, facilitating the turn in the WT structure.In contrast, in the variant simulations, Leu604 forms a few hydrophobic interactions (e.g., Leu607, Phe608). More importantly, the helix end is more stable than with Ser604 in the WT. The residue swap could have a more profound effect on the actual folding process, for example, by preventing the bending at the α helix end, than what the simulations suggest.Moreover, Ser604 directly hydrogen bonds with Ras residues Ser65 and Ala66 in the WT SynGAP-Ras complex. The hydrophobic leucine cannot maintain these interactions with Ras at the GAP-Ras interface. Thus, the effect of the residue swap on the complex formation with the GTPase cannot be fully explored in the solvent-only simulations.
c.1813C>T
P605S
2D
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AIThe SynGAP1 missense variant P605S is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. All evaluated in‑silico predictors classify the change as pathogenic: REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a benign effect. High‑accuracy assessments reinforce this: AlphaMissense‑Optimized is pathogenic; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic”; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, is pathogenic. Based on the unanimous pathogenic predictions, the variant is most likely pathogenic, which contradicts the current ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-10.830Likely Pathogenic0.987Likely PathogenicLikely Pathogenic0.718Likely Pathogenic3.40Destabilizing0.13.34Destabilizing3.37Destabilizing1.00Destabilizing-7.96Deleterious1.000Probably Damaging1.000Probably Damaging0.70Pathogenic0.00Affected3.37351-10.8-10.04213.8-15.4-0.30.20.20.1XXPotentially PathogenicPro605 is located in a short turn between an α helix (res. Glu582-Met603) and a short α helical section (res. Ser606-Phe608). The pyrrolidine side chain of Pro605 packs hydrophobically with nearby hydrophobic residues (e.g., Ile514, Leu623, Leu610) in the inter-helix space. Additionally, proline lacks a free backbone amide group, which breaks the α helix and facilitates the turn in the WT structure.In the variant simulations, the hydroxyl side chain of Ser605 forms hydrogen bonds with the backbone carbonyl groups of Ala601 and Ile602. Importantly, the helix end is more stable than with Pro605 in the WT. Indeed, proline is a more effective secondary structure breaker compared to serine.Thus, the residue swap could have a more profound effect on the actual folding process, for example, by preventing the bending at the α helix end, than what the simulations suggest. Moreover, due to its location at the GAP-Ras interface, the residue swap could affect the GAP-Ras association.
c.1814C>G
P605R
2D
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AIThe SynGAP1 missense variant P605R is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools uniformly indicate a deleterious effect: REVEL, FoldX, Rosetta, Foldetta, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized all classify the change as pathogenic, while premPS remains inconclusive. Grouping by consensus, the benign category is empty and the pathogenic category contains all available predictions. High‑accuracy assessments reinforce this view: AlphaMissense‑Optimized predicts pathogenic; the SGM Consensus (derived from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) also yields pathogenic; and Foldetta, integrating FoldX‑MD and Rosetta outputs, reports a destabilizing, pathogenic effect. Consequently, the variant is most likely pathogenic, which does not contradict its current ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-13.745Likely Pathogenic0.996Likely PathogenicLikely Pathogenic0.845Likely Pathogenic8.71Destabilizing2.56.46Destabilizing7.59Destabilizing0.92Ambiguous-8.95Deleterious1.000Probably Damaging1.000Probably Damaging0.69Pathogenic0.00Affected3.37350-2-2.959.07281.7-118.1-0.20.00.50.1XXXXPotentially PathogenicPro605 is located in a short turn between an α helix (res. Glu582-Met603) and a short α helical section (res. Ser606-Phe608). The pyrrolidine side chain of Pro605 packs hydrophobically with nearby hydrophobic residues (e.g., Ile514, Leu623, Leu610) in the inter-helix space. Additionally, proline lacks a free backbone amide group, which breaks the α helix and facilitates the turn in the WT structure.In the variant simulations, the guanidinium side chain of Arg605 is bulkier than proline, and its positively charged guanidinium group faces mostly hydrophobic residues (e.g., Ile514, Leu623, Leu610). As a result, it needs to rotate away from the hydrophobic niche. The residue swap could have a more profound effect on the actual folding process, for example, by preventing the bending at the α helix end.Moreover, due to its location at the GAP-Ras interface, the residue swap could affect the GAP-Ras association.
c.182A>C
E61A
2D
AIThe SynGAP1 missense variant E61A is listed in ClinVar (ID 3767543.0) with an *Uncertain* clinical significance and is not reported in gnomAD. Functional prediction tools that agree on a benign effect include REVEL, PROVEAN, ESM1b, FATHMM, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). Tools that predict a pathogenic effect are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, and SIFT; AlphaMissense‑Default remains uncertain. High‑accuracy assessments show AlphaMissense‑Optimized as benign and the SGM‑Consensus as likely benign, while Foldetta (a protein‑folding stability method combining FoldX‑MD and Rosetta outputs) has no available result for this variant. Overall, the majority of evidence points to a benign impact, and this conclusion does not contradict the current ClinVar status of uncertainty.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 1-5.235Likely Benign0.453AmbiguousLikely Benign0.074Likely Benign-1.52Neutral0.458Possibly Damaging0.678Possibly Damaging4.12Benign0.00Affected0-15.3-58.04
c.1832T>C
M611T
2D
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AIThe SynGAP1 missense variant M611T is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33440884‑T‑C). Prediction tools that agree on a benign effect include REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and AlphaMissense‑Optimized. Only FATHMM predicts a pathogenic outcome. Four tools (FoldX, Rosetta, Foldetta, premPS) return uncertain or inconclusive results. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as Likely Benign, and Foldetta as uncertain. Overall, the majority of evidence points to a benign impact, and this does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 16-33440884-T-C16.19e-7-5.696Likely Benign0.101Likely BenignLikely Benign0.240Likely Benign1.98Ambiguous0.20.94Ambiguous1.46Ambiguous0.87Ambiguous-2.40Neutral0.034Benign0.038Benign-1.19Pathogenic0.29Tolerated3.3735-1-1-2.6-30.09
c.1835A>C
Q612P
2D
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AISynGAP1 missense variant Q612P is listed in ClinVar (ID 3660462.0) with an uncertain significance annotation and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from FoldX, SIFT, and AlphaMissense‑Optimized; pathogenic predictions arise from REVEL, PolyPhen‑2 (HumDiv and HumVar), ESM1b, FATHMM, AlphaMissense‑Default, PROVEAN, and the SGM Consensus score (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). The high‑accuracy AlphaMissense‑Optimized predicts benign, whereas the SGM Consensus predicts likely pathogenic; Foldetta, a folding‑stability method combining FoldX‑MD and Rosetta outputs, returns an uncertain result and is therefore not factored into the consensus. Overall, the majority of evidence supports a pathogenic effect, which contrasts with the ClinVar uncertain classification. Thus, based on current predictions, the variant is most likely pathogenic, contradicting the ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.684Likely Pathogenic0.673Likely PathogenicLikely Benign0.671Likely Pathogenic-0.19Likely Benign0.33.06Destabilizing1.44Ambiguous0.56Ambiguous-5.84Deleterious1.000Probably Damaging1.000Probably Damaging-1.31Pathogenic0.19Tolerated0-11.9-31.01
c.1851G>T
E617D
2D
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AIThe SynGAP1 missense variant E617D is listed in ClinVar with an uncertain significance (ID 2584916.0) and is not reported in gnomAD. Functional prediction tools largely agree on a benign effect: REVEL, FoldX, Foldetta, premPS, PROVEAN, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus score all indicate benign or likely benign. In contrast, polyPhen‑2 (HumDiv and HumVar) and FATHMM predict a pathogenic impact, while Rosetta remains inconclusive. High‑accuracy assessments reinforce the benign consensus: AlphaMissense‑Optimized is benign; the SGM‑Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is likely benign; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, also predicts benign. Overall, the preponderance of evidence supports a benign classification, which does not contradict the current ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-1.349Likely Benign0.241Likely BenignLikely Benign0.322Likely Benign0.12Likely Benign0.10.80Ambiguous0.46Likely Benign0.07Likely Benign-0.01Neutral0.994Probably Damaging0.979Probably Damaging-1.35Pathogenic0.88Tolerated3.3735230.0-14.03
c.1855A>T
T619S
2D
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AIThe SynGAP1 missense variant T619S is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Prediction tools that agree on a benign effect include only AlphaMissense‑Optimized. All other evaluated algorithms—SGM‑Consensus (Likely Pathogenic), REVEL, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, and AlphaMissense‑Default—consistently predict a pathogenic impact. High‑accuracy assessments further support this view: AlphaMissense‑Optimized reports a benign outcome, whereas the SGM Consensus, derived from the majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, indicates pathogenicity. Foldetta, which integrates FoldX‑MD and Rosetta stability predictions, yields an uncertain result. Overall, the majority of evidence points to a pathogenic effect for T619S, and this conclusion does not contradict the ClinVar designation of uncertain significance.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-8.608Likely Pathogenic0.677Likely PathogenicLikely Benign0.602Likely Pathogenic1.09Ambiguous0.21.35Ambiguous1.22Ambiguous0.85Ambiguous-3.42Deleterious0.999Probably Damaging0.998Probably Damaging-1.30Pathogenic0.05Affected3.373511-0.1-14.03
c.1862G>A
R621Q
2D
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AISynGAP1 missense variant R621Q is listed in ClinVar (ID 578137.0) as benign and is present in gnomAD (variant ID 6‑33440914‑G‑A). Functional prediction tools that agree on a benign effect include only FATHMM, whereas the remaining tools—REVEL, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, and AlphaMissense‑Default—consistently predict a pathogenic impact. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) as uncertain. No evidence from FoldX, Rosetta, or Foldetta supports a benign outcome. Overall, the preponderance of predictions indicates a likely pathogenic effect, which contradicts the benign classification reported in ClinVar.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Benign 16-33440914-G-A191.18e-5-14.682Likely Pathogenic0.910Likely PathogenicAmbiguous0.621Likely Pathogenic0.81Ambiguous0.11.13Ambiguous0.97Ambiguous1.35Destabilizing-3.98Deleterious1.000Probably Damaging0.997Probably Damaging2.82Benign0.01Affected3.3735111.0-28.06243.754.30.00.0-0.40.2XXPotentially PathogenicThe guanidinium group of Arg621, located in an α helix (res. Glu617-Asn635), forms a salt bridge with Glu525 in a nearby loop and stacks with Leu635. In the variant simulations, the carboxamide side chain of Gln621, which can act as both a hydrogen bond acceptor and donor, also stacks with Leu635 but can only sporadically hydrogen bond with Glu525.Accordingly, the residue swap could affect the tertiary structure integrity by disrupting the salt bridge formation. Additionally, due to its location at the GAP-Ras interface, the residue swap could impact the complex formation with the GTPase, but this cannot be investigated using solvent-only simulations.
c.1873C>G
L625V
2D
AISynGAP1 missense variant L625V is listed in ClinVar with an uncertain significance (ClinVar ID 3392716.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from REVEL and FATHMM, while pathogenic predictions are made by premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, and AlphaMissense‑Default. Four tools (FoldX, Rosetta, Foldetta, AlphaMissense‑Optimized) give inconclusive results. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as likely pathogenic, and Foldetta as uncertain. Overall, the majority of evidence points toward a pathogenic effect, which does not contradict the ClinVar uncertain status but suggests a higher likelihood of pathogenicity.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-11.319Likely Pathogenic0.833Likely PathogenicAmbiguous0.480Likely Benign1.80Ambiguous0.71.69Ambiguous1.75Ambiguous1.42Destabilizing-2.96Deleterious0.998Probably Damaging0.992Probably Damaging3.07Benign0.01Affected210.4-14.03
c.1877T>C
I626T
2D
AISynGAP1 missense variant I626T is listed in ClinVar with an uncertain significance (ClinVar ID 3359331.0) and is not reported in gnomAD. Functional prediction tools largely agree on a deleterious effect: pathogenic predictions are returned by REVEL, FoldX, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, AlphaMissense‑Default, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN). Only FATHMM predicts a benign outcome, while AlphaMissense‑Optimized is uncertain. High‑accuracy assessments further support pathogenicity: AlphaMissense‑Optimized is inconclusive, SGM‑Consensus indicates likely pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts pathogenic. Overall, the consensus of the majority of tools points to a pathogenic effect, contradicting the current ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-10.420Likely Pathogenic0.946Likely PathogenicAmbiguous0.640Likely Pathogenic2.94Destabilizing0.12.70Destabilizing2.82Destabilizing2.23Destabilizing-4.18Deleterious1.000Probably Damaging1.000Probably Damaging3.04Benign0.00Affected0-1-5.2-12.05
c.187G>A
E63K
2D
AIThe SynGAP1 E63K missense variant (ClinVar ID 2830630.0) is listed as “Uncertain” and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, PROVEAN, ESM1b, and FATHMM, while polyPhen‑2 (HumDiv and HumVar), SIFT, and AlphaMissense‑Default all predict a pathogenic outcome. AlphaMissense‑Optimized is inconclusive, and Foldetta (a protein‑folding stability method combining FoldX‑MD and Rosetta outputs) has no available result for this variant. The SGM‑Consensus, which aggregates the majority vote from AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a “Likely Benign” classification. Overall, the high‑accuracy consensus leans toward a benign effect, and this assessment does not contradict the ClinVar status of uncertainty.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 1-4.976Likely Benign0.894Likely PathogenicAmbiguous0.103Likely Benign-0.70Neutral0.458Possibly Damaging0.678Possibly Damaging3.98Benign0.00Affected4.32110-0.4-0.94
c.187G>C
E63Q
2D
AIThe SynGAP1 missense variant E63Q is listed in ClinVar (ID 2132335.0) with an “Uncertain” status and is not reported in gnomAD. Prediction tools that agree on a benign effect include REVEL, PROVEAN, ESM1b, FATHMM, and AlphaMissense‑Optimized. Those that predict a pathogenic effect are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, and AlphaMissense‑Default. The SGM‑Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, is “Likely Benign.” High‑accuracy assessments show AlphaMissense‑Optimized as benign, and the SGM‑Consensus (majority of the four high‑accuracy tools) also indicates a benign outcome. Foldetta, a protein‑folding stability method combining FoldX‑MD and Rosetta outputs, has no available result for this variant. Overall, the preponderance of predictions points to a benign effect, which does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 1-4.038Likely Benign0.687Likely PathogenicLikely Benign0.078Likely Benign-0.85Neutral0.659Possibly Damaging0.775Possibly Damaging3.90Benign0.00Affected4.321220.0-0.98
c.1904A>G
N635S
2D
3DClick to see structure in 3D Viewer
AISynGAP1 missense variant N635S is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6-33440956-A-G). Functional prediction tools that agree on a benign effect include REVEL, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are PROVEAN, SIFT, and ESM1b. Predictions that are inconclusive or unavailable are FoldX, Rosetta, Foldetta, and premPS. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (majority vote from AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is inconclusive, and Foldetta is also inconclusive. Overall, the majority of available predictions lean toward a benign impact, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPConflicting 46-33440956-A-G106.20e-6-9.002Likely Pathogenic0.101Likely BenignLikely Benign0.104Likely Benign0.80Ambiguous0.10.67Ambiguous0.74Ambiguous0.95Ambiguous-4.45Deleterious0.261Benign0.044Benign3.06Benign0.05Affected3.3734112.7-27.03196.030.90.10.0-0.30.2XUncertainIn the WT simulations, the carboxamide side chain of Asn635, located on the outer surface of an α helix (res. Glu617-Asn635), forms hydrogen bonds with Gln631 on the same α helix and with the hydroxyl side chain of Ser590 on an opposing α helix (res. Glu582-Met603).In the variant simulations, the side chain of Ser635 is shorter than asparagine and thus prefers to hydrogen bond with the carbonyl group of Gln631 on the same helix and, to a lesser extent, with Ser590 compared to Asn635 in the WT. Ser635 forms hydrogen bonds with the backbone atoms of the same helix, which may destabilize the helix, although this is not clearly evident in the simulations. The weakening of the hydrogen bond between Ser635 and Ser590 in the variant may also weaken the tertiary structure assembly between the helices.Additionally, Asn635 is at the GTPase interface. However, the implication of the residue swap on the complex formation with the GTPase cannot be investigated using solvent-only simulations.
c.1913A>G
K638R
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant K638R is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that uniformly indicate a benign effect include REVEL, FoldX, Rosetta, Foldetta, polyPhen‑2 HumVar, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus score (Likely Benign). In contrast, PROVEAN and polyPhen‑2 HumDiv predict a pathogenic impact, while premPS remains inconclusive. High‑accuracy assessments further support a benign outcome: AlphaMissense‑Optimized is benign; the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) is benign; and Foldetta, which integrates FoldX‑MD and Rosetta stability predictions, is benign. Overall, the majority of evidence points to a benign effect, which does not contradict the ClinVar “Uncertain” classification.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-2.700Likely Benign0.110Likely BenignLikely Benign0.216Likely Benign0.09Likely Benign0.1-0.04Likely Benign0.03Likely Benign0.53Ambiguous-2.55Deleterious0.649Possibly Damaging0.240Benign3.41Benign0.13Tolerated3.373123-0.628.01
c.1918A>T
T640S
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant T640S is listed in ClinVar as Benign (ClinVar ID 2980241.0) and is present in the gnomAD database (gnomAD ID 6‑33441177‑A‑T). Prediction tools that agree on a benign effect include REVEL, Rosetta, Foldetta, premPS, PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. No tool predicts a pathogenic outcome; the only inconclusive result is from FoldX, which is treated as unavailable. High‑accuracy assessments confirm benignity: AlphaMissense‑Optimized is benign; the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is benign; and Foldetta, which integrates FoldX‑MD and Rosetta outputs, is benign. Overall, the variant is most likely benign, and this conclusion is consistent with its ClinVar status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPBenign 16-33441177-A-T16.20e-7-2.371Likely Benign0.062Likely BenignLikely Benign0.088Likely Benign-0.78Ambiguous0.10.43Likely Benign-0.18Likely Benign-0.30Likely Benign0.92Neutral0.000Benign0.001Benign3.60Benign0.33Tolerated3.373011-0.1-14.03
c.1925A>C
K642T
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant K642T is listed in ClinVar (ID 437411.0) as Pathogenic and is not reported in gnomAD. Functional prediction tools split in a 7‑to‑5 ratio: pathogenic calls come from PROVEAN, polyPhen‑2 (HumDiv and HumVar), SIFT, ESM1b, and AlphaMissense‑Default, while benign calls come from REVEL, Rosetta, Foldetta, premPS, and FATHMM; FoldX and AlphaMissense‑Optimized are uncertain. High‑accuracy assessments show AlphaMissense‑Optimized as uncertain, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) as Pathogenic, and Foldetta (combining FoldX‑MD and Rosetta stability outputs) as Benign. Overall, the majority of evidence points to a pathogenic effect, aligning with the ClinVar classification and not contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPLikely Pathogenic 1-12.823Likely Pathogenic0.948Likely PathogenicAmbiguous0.484Likely Benign0.53Ambiguous0.10.30Likely Benign0.42Likely Benign0.28Likely Benign-5.88Deleterious0.872Possibly Damaging0.839Possibly Damaging2.86Benign0.00Affected3.37310-13.2-27.07213.5-8.7-0.30.40.30.2XUncertainThe amino side chain of Lys642, located on the surface of an α helix (res. Ser641-Glu666), is not involved in any interactions in the WT simulations. In the variant simulations, the shorter side chain of Thr642 forms hydrogen bonds with Glu643 and Thr640 on the same α helix.Regardless, Lys642 is positioned directly at the GAP-Ras interface, and in the SynGAP-Ras WT simulations, its amino side chain forms salt bridges with the carboxylate groups of Ras residues Asp33 and Asp38. The shorter Thr642 is more likely to prefer hydrogen bonding with Glu643 and Thr640 on the same α helix, even in the Ras complex. Thus, the effect of the residue swap on the complex formation with the GTPase cannot be explored using solvent-only simulations.
c.1942T>C
F648L
2D
AISynGAP1 missense variant F648L is listed in ClinVar with an uncertain significance (ClinVar ID 3383902.0) and is not reported in gnomAD. Functional prediction tools cluster into two groups: benign predictions come from REVEL, SIFT, and FATHMM, whereas the remaining tools—FoldX, Rosetta, premPS, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, AlphaMissense‑Default, AlphaMissense‑Optimized, and ESM1b—consistently predict pathogenicity. The SGM Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, also indicates likely pathogenic. High‑accuracy assessments further support a deleterious effect: AlphaMissense‑Optimized scores pathogenic, and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts a destabilizing, pathogenic change. Taken together, the preponderance of evidence points to a pathogenic impact for F648L, which contradicts the current ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.296Likely Pathogenic0.999Likely PathogenicLikely Pathogenic0.468Likely Benign2.71Destabilizing0.82.08Destabilizing2.40Destabilizing1.04Destabilizing-5.98Deleterious0.999Probably Damaging0.976Probably Damaging3.45Benign0.08Tolerated201.0-34.02
c.1947G>C
M649I
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant M649I is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that indicate a benign effect include REVEL, polyPhen‑2 HumVar, and FATHMM, whereas the majority of other in silico predictors (FoldX, Foldetta, premPS, PROVEAN, polyPhen‑2 HumDiv, SIFT, ESM1b, AlphaMissense‑Default, AlphaMissense‑Optimized) report a pathogenic outcome; Rosetta is inconclusive. High‑accuracy assessments further support a deleterious impact: AlphaMissense‑Optimized predicts pathogenicity, the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is “Likely Pathogenic,” and Foldetta (combining FoldX‑MD and Rosetta outputs) also predicts pathogenicity. Overall, the preponderance of evidence points to a pathogenic effect for M649I, which is consistent with the ClinVar “Uncertain” classification rather than contradicting it.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely PathogenicGAPUncertain 1-9.361Likely Pathogenic0.995Likely PathogenicLikely Pathogenic0.449Likely Benign2.42Destabilizing0.21.96Ambiguous2.19Destabilizing1.01Destabilizing-3.99Deleterious0.672Possibly Damaging0.093Benign3.40Benign0.02Affected3.3827212.6-18.03243.721.50.00.10.00.1XPotentially BenignThe thioether side chain of Met649, located on an α helix (res. Ser641-Glu666), bridges Phe652, Phe648, and Phe639 in an inter-helix hydrophobic cavity in the WT simulations. In the variant simulations, the sec-butyl side chain of Ile649 maintains hydrophobic interactions with nearby residues, with no significant effects on the protein structure.However, methionine is known as a bridging motif for aromatic residues, and these Met-aromatic interactions are lost in the variant. Indeed, in the second variant simulation,the bridging of Phe652, Phe648 and Phe639 is completely lost. In reality, the effect could be more severe on the structure during the protein folding.
c.194A>G
H65R
2D
AIThe SynGAP1 missense variant H65R is listed in ClinVar with an “Uncertain” status and is present in gnomAD (ID 6‑33425802‑A‑G). Prediction tools that agree on a benign effect include REVEL, PROVEAN, polyPhen‑2 HumVar, ESM1b, and FATHMM, while those that predict a pathogenic effect are polyPhen‑2 HumDiv, SIFT, AlphaMissense‑Default, and AlphaMissense‑Optimized. The SGM‑Consensus, which aggregates AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a “Likely Benign” classification. High‑accuracy assessments show AlphaMissense‑Optimized as pathogenic, whereas the SGM‑Consensus remains benign; Foldetta results are unavailable. Overall, the majority of evidence points to a benign impact, and this conclusion does not contradict the ClinVar “Uncertain” designation.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 16-33425802-A-G16.20e-7-1.980Likely Benign0.967Likely PathogenicLikely Pathogenic0.073Likely Benign-1.60Neutral0.462Possibly Damaging0.227Benign4.19Benign0.00Affected4.32120-1.319.05
c.1957C>G
L653V
2D
AIThe SynGAP1 missense variant L653V is listed in ClinVar with an “Uncertain” status and is not reported in gnomAD. Prediction tools that classify the variant as benign include REVEL, PROVEAN, polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, FATHMM, AlphaMissense‑Default, and AlphaMissense‑Optimized. Tools that predict a pathogenic effect are FoldX, Rosetta, and premPS, while ESM1b is inconclusive. High‑accuracy assessments show AlphaMissense‑Optimized as benign, the SGM Consensus (a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN) as Likely Benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) as pathogenic. Overall, the majority of evidence points to a benign impact, and this does not contradict the ClinVar “Uncertain” classification. Thus, based on current predictions, the variant is most likely benign.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-7.050In-Between0.301Likely BenignLikely Benign0.146Likely Benign3.28Destabilizing0.32.18Destabilizing2.73Destabilizing1.32Destabilizing-2.25Neutral0.227Benign0.039Benign3.28Benign0.08Tolerated210.4-14.03
c.1964T>A
L655Q
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant L655Q is listed in ClinVar with an uncertain significance and is not reported in gnomAD. Functional prediction tools largely agree on a benign effect: REVEL, FoldX, Foldetta, premPS, PROVEAN, SIFT, ESM1b, FATHMM, AlphaMissense‑Default, AlphaMissense‑Optimized, and the SGM‑Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) all indicate benign or likely benign. Only the two polyPhen‑2 implementations (HumDiv and HumVar) predict pathogenicity, while Rosetta remains inconclusive. High‑accuracy assessments reinforce the benign consensus: AlphaMissense‑Optimized scores benign, the SGM‑Consensus is likely benign, and Foldetta (combining FoldX‑MD and Rosetta outputs) predicts benign stability. Overall, the majority of evidence supports a benign impact for L655Q, which does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignGAPUncertain 1-5.278Likely Benign0.144Likely BenignLikely Benign0.139Likely Benign-0.01Likely Benign0.00.69Ambiguous0.34Likely Benign-0.15Likely Benign0.61Neutral0.955Possibly Damaging0.602Possibly Damaging3.59Benign0.65Tolerated3.3924-2-2-7.314.97229.9-8.60.00.00.40.0XPotentially BenignThe iso-butyl side chain of Leu655, located on the surface of an α helix (res. Ser641-Glu666), is not involved in any interactions in the WT simulations. In the variant simulations, the carboxamide side chain of Gln655 dynamically interacts with neighboring residues (e.g., Glu651, Glu656, Arg544) on the protein surface, with no negative structural effects.
c.1966G>C
E656Q
2D
3DClick to see structure in 3D Viewer
AIThe SynGAP1 missense variant E656Q is listed in ClinVar with an uncertain significance and is present in gnomAD (ID 6‑33441225‑G‑C). Functional prediction tools that agree on a benign effect include REVEL, FoldX, Foldetta, premPS, PROVEAN, FATHMM, and AlphaMissense‑Optimized. Tools that predict a pathogenic outcome are polyPhen‑2 HumDiv, polyPhen‑2 HumVar, SIFT, ESM1b, and AlphaMissense‑Default; Rosetta reports an uncertain result. High‑accuracy assessments show AlphaMissense‑Optimized as benign, Foldetta as benign, while the SGM Consensus (majority vote of AlphaMissense‑Default, ESM1b, FATHMM, PROVEAN) is inconclusive due to a 2‑2 split. Overall, the majority of evidence points to a benign effect, and this conclusion does not contradict the ClinVar uncertain status.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
GAPUncertain 16-33441225-G-C16.20e-7-9.145Likely Pathogenic0.766Likely PathogenicLikely Benign0.249Likely Benign-0.14Likely Benign0.0-0.81Ambiguous-0.48Likely Benign0.25Likely Benign-2.29Neutral0.980Probably Damaging0.528Possibly Damaging3.46Benign0.02Affected3.3924220.0-0.98224.31.70.00.10.10.0XPotentially BenignThe carboxylate side chain of Glu656, located on an α helix (res. Ser641-Glu666), frequently forms a hydrogen bond with the nearby residue Ser659 on the same α helix. In the variant simulations, the carboxamide side chain of Gln656 alternatively forms a hydrogen bond with either Ser659 or Glu548 on an opposing helix (res. Ala533-Val560).Although the frequent interaction between Gln656 and Glu548 may strengthen or stabilize the tertiary structure assembly, the effect is likely to be marginal.
c.196C>G
P66A
2D
AIThe SynGAP1 P66A missense variant (ClinVar ID 1303518.0) is listed as “Uncertain” and is not reported in gnomAD. Functional prediction tools that agree on benign impact include REVEL, PROVEAN, ESM1b, and FATHMM, while polyPhen‑2 (HumDiv and HumVar), SIFT, and AlphaMissense‑Default all predict pathogenicity. The SGM‑Consensus, derived from a majority vote of AlphaMissense‑Default, ESM1b, FATHMM, and PROVEAN, reports a “Likely Benign” status. Separately, the high‑accuracy AlphaMissense‑Optimized result is “Uncertain,” the SGM‑Consensus remains “Likely Benign,” and Foldetta (a protein‑folding stability method combining FoldX‑MD and Rosetta outputs) has no available result for this variant. Overall, the predictions are mixed, but the majority of high‑confidence tools lean toward a benign effect. Thus, the variant is most likely benign based on current computational evidence, and this assessment does not contradict the ClinVar status of uncertainty.

Disclaimer: This summary was generated using AI and should be interpreted alongside expert review.
Likely BenignUncertain 1-2.845Likely Benign0.891Likely PathogenicAmbiguous0.091Likely Benign-1.56Neutral0.805Possibly Damaging0.539Possibly Damaging4.04Benign0.00Affected4.3211-13.4-26.04

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