ClinVar Miner

Submissions for variant NM_004415.4(DSP):c.1729A>C (p.Met577Leu)

dbSNP: rs764127243
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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 RCV000773363 SCV000907057 uncertain significance Cardiomyopathy 2023-12-05 criteria provided, single submitter clinical testing This missense variant replaces methionine with leucine at codon 577 of the DSP 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 1/251334 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 RCV001302352 SCV001491558 uncertain significance Arrhythmogenic cardiomyopathy with wooly hair and keratoderma; Arrhythmogenic right ventricular dysplasia 8 2023-12-11 criteria provided, single submitter clinical testing This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 577 of the DSP protein (p.Met577Leu). This variant is present in population databases (rs764127243, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with DSP-related conditions. ClinVar contains an entry for this variant (Variation ID: 628702). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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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