ClinVar Miner

Submissions for variant NM_001943.5(DSG2):c.905G>A (p.Gly302Asp)

dbSNP: rs1338174918
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Total submissions: 6
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001177712 SCV001341974 uncertain significance Cardiomyopathy 2023-06-21 criteria provided, single submitter clinical testing This missense variant replaces glycine with aspartic acid at codon 302 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 DSG2-related disorders in the literature. This variant has been identified in 1/249410 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.
Labcorp Genetics (formerly Invitae), Labcorp RCV001326290 SCV001517314 uncertain significance Arrhythmogenic right ventricular dysplasia 10 2023-11-25 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 302 of the DSG2 protein (p.Gly302Asp). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with DSG2-related conditions. ClinVar contains an entry for this variant (Variation ID: 919478). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt DSG2 protein function with a negative 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.
Ambry Genetics RCV004033010 SCV003581170 uncertain significance Cardiovascular phenotype 2024-01-16 criteria provided, single submitter clinical testing The p.G302D variant (also known as c.905G>A), located in coding exon 8 of the DSG2 gene, results from a G to A substitution at nucleotide position 905. The glycine at codon 302 is replaced by aspartic acid, an amino acid with similar properties. This amino acid position is conserved. 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 alteration remains unclear.
GeneDx RCV003325547 SCV004031962 uncertain significance not provided 2023-08-23 criteria provided, single submitter clinical testing Has not been previously published as pathogenic or benign to our knowledge; Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function
CeGaT Center for Human Genetics Tuebingen RCV003325547 SCV004140912 uncertain significance not provided 2023-01-01 criteria provided, single submitter clinical testing DSG2: PM2, BP4
All of Us Research Program, National Institutes of Health RCV004006402 SCV004819493 uncertain significance Arrhythmogenic right ventricular cardiomyopathy 2024-09-23 criteria provided, single submitter clinical testing This missense variant replaces glycine with aspartic acid at codon 302 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 DSG2-related disorders in the literature. This variant has been identified in 1/249410 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.

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