ClinVar Miner

Submissions for variant NM_001035.3(RYR2):c.7940G>A (p.Gly2647Asp)

gnomAD frequency: 0.00001  dbSNP: rs776908944
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV002563599 SCV002235868 uncertain significance Catecholaminergic polymorphic ventricular tachycardia 1 2024-10-02 criteria provided, single submitter clinical testing This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 2647 of the RYR2 protein (p.Gly2647Asp). This variant is present in population databases (rs776908944, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with RYR2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1450831). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt RYR2 protein function with a positive predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
AiLife Diagnostics, AiLife Diagnostics RCV002224122 SCV002502471 uncertain significance not provided 2021-10-05 criteria provided, single submitter clinical testing
Fulgent Genetics, Fulgent Genetics RCV002507691 SCV002815865 uncertain significance Arrhythmogenic right ventricular dysplasia 2; Catecholaminergic polymorphic ventricular tachycardia 1; Ventricular arrhythmias due to cardiac ryanodine receptor calcium release deficiency syndrome 2022-02-18 criteria provided, single submitter clinical testing
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV004587268 SCV005077273 uncertain significance not specified 2024-04-29 criteria provided, single submitter clinical testing Variant summary: RYR2 c.7940G>A (p.Gly2647Asp) results in a non-conservative amino acid change in the encoded protein sequence. Four of four in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8e-06 in 249102 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.7940G>A in individuals affected with Catecholaminergic Polymorphic Ventricular Tachycardia and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 1450831). Based on the evidence outlined above, the variant was classified as uncertain significance.

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