ClinVar Miner

Submissions for variant NM_001943.5(DSG2):c.1355T>G (p.Leu452Arg)

dbSNP: rs763810935
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000242496 SCV000320260 uncertain significance Cardiovascular phenotype 2016-07-25 criteria provided, single submitter clinical testing The p.L452R variant (also known as c.1355T>G), located in coding exon 10 of the DSG2 gene, results from a T to G substitution at nucleotide position 1355. The leucine at codon 452 is replaced by arginine, an amino acid with dissimilar properties. This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), Exome Aggregation Consortium (ExAC) and 1000 Genomes Project. In the ESP, this variant was not observed in 5875 samples (11750 alleles) with coverage at this position. This amino acid position is poorly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this variant remains unclear.
Color Diagnostics, LLC DBA Color Health RCV001804987 SCV002053272 uncertain significance Cardiomyopathy 2021-07-06 criteria provided, single submitter clinical testing This missense variant replaces leucine with arginine at codon 452 of the DSG2 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 been identified in 1/247320 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 RCV001859465 SCV002157540 uncertain significance Arrhythmogenic right ventricular dysplasia 10 2022-08-16 criteria provided, single submitter clinical testing 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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. ClinVar contains an entry for this variant (Variation ID: 264366). This variant has not been reported in the literature in individuals affected with DSG2-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.003%). This sequence change replaces leucine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 452 of the DSG2 protein (p.Leu452Arg).

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