ClinVar Miner

Submissions for variant NM_004415.4(DSP):c.6235G>C (p.Asp2079His)

gnomAD frequency: 0.00001  dbSNP: rs992731463
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000518847 SCV000619568 uncertain significance not provided 2018-05-17 criteria provided, single submitter clinical testing A variant of uncertain significance has been identified in the DSP gene. The D2079H variant has not been published as pathogenic or been reported as benign to our knowledge. This variant is not observed at a significant frequency in large population cohorts (Lek et al., 2016). The D2079H variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. Furthermore, in-silico analyses, including protein predictors and evolutionary conservation, support a deleterious effect. However, based on the currently available information, it is unclear whether this variant is pathogenic or rare benign.
Color Diagnostics, LLC DBA Color Health RCV001178180 SCV001342557 uncertain significance Cardiomyopathy 2023-03-22 criteria provided, single submitter clinical testing This missense variant replaces aspartic acid with histidine at codon 2079 of the DSP 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 DSP-related disorders in the literature. This variant has been identified in 1/251102 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 RCV003766955 SCV004574855 uncertain significance Arrhythmogenic cardiomyopathy with wooly hair and keratoderma; Arrhythmogenic right ventricular dysplasia 8 2023-02-11 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid, which is acidic and polar, with histidine, which is basic and polar, at codon 2079 of the DSP protein (p.Asp2079His). 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 DSP-related conditions. ClinVar contains an entry for this variant (Variation ID: 450935). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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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