ClinVar Miner

Submissions for variant NM_024422.6(DSC2):c.1634A>G (p.Tyr545Cys)

gnomAD frequency: 0.00001  dbSNP: rs776917359
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV000814739 SCV000955161 uncertain significance Arrhythmogenic right ventricular dysplasia 11 2023-10-28 criteria provided, single submitter clinical testing This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 545 of the DSC2 protein (p.Tyr545Cys). This variant is present in population databases (rs776917359, gnomAD 0.007%). This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 25163546). ClinVar contains an entry for this variant (Variation ID: 658013). 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 DSC2 protein function with a negative predictive value of 80%. 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.
Color Diagnostics, LLC DBA Color Health RCV001177877 SCV001342170 uncertain significance Cardiomyopathy 2023-05-10 criteria provided, single submitter clinical testing This missense variant replaces tyrosine with cysteine at codon 545 of the DSC2 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 been reported in an individual affected with dilated cardiomyopathy (PMID: 25163546). This variant has been identified in 8/251172 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.
GeneDx RCV003329345 SCV004036903 uncertain significance not provided 2023-09-22 criteria provided, single submitter clinical testing Reported in association with DCM; however, no additional information was provided (Haas et al., 2015); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 25163546)

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