ClinVar Miner

Submissions for variant NM_001035.3(RYR2):c.1300G>A (p.Asp434Asn)

dbSNP: rs1658551806
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001175915 SCV001339726 uncertain significance Cardiomyopathy 2020-07-29 criteria provided, single submitter clinical testing This missense variant replaces aspartic acid with asparagine at codon 434 of the RYR2 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.
Invitae RCV002558794 SCV001381044 uncertain significance Catecholaminergic polymorphic ventricular tachycardia 1 2021-08-26 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid with asparagine at codon 434 of the RYR2 protein (p.Asp434Asn). The aspartic acid residue is highly conserved and there is a small physicochemical difference between aspartic acid and asparagine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals affected with RYR2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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.

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