ClinVar Miner

Submissions for variant NM_001005242.3(PKP2):c.1862C>G (p.Pro621Arg)

dbSNP: rs773061639
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001190648 SCV001358201 uncertain significance Cardiomyopathy 2022-12-12 criteria provided, single submitter clinical testing This missense variant replaces proline with arginine at codon 665 of the PKP2 protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function (internally defined REVEL score threshold >= 0.7, 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 been identified in 14/282720 chromosomes 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 RCV002560090 SCV003476236 uncertain significance Arrhythmogenic right ventricular dysplasia 9 2022-10-25 criteria provided, single submitter clinical testing This sequence change replaces proline, which is neutral and non-polar, with arginine, which is basic and polar, at codon 665 of the PKP2 protein (p.Pro665Arg). This variant is present in population databases (rs773061639, gnomAD 0.07%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with clinical features of PKP2-related conditions (PMID: 24125834, 31983221). ClinVar contains an entry for this variant (Variation ID: 927402). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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.
Ambry Genetics RCV003363146 SCV004053197 likely benign Cardiovascular phenotype 2023-06-26 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

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