ClinVar Miner

Submissions for variant NM_001943.5(DSG2):c.2558A>G (p.Gln853Arg)

gnomAD frequency: 0.00001  dbSNP: rs1567934468
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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001182687 SCV001348208 uncertain significance Cardiomyopathy 2020-01-08 criteria provided, single submitter clinical testing This missense variant replaces glutamine with arginine at codon 853 of the DSG2 protein. Computational prediction tool suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold ≤0.5, PMID: 27666373). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/31412 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 RCV001876067 SCV002201290 uncertain significance Arrhythmogenic right ventricular dysplasia 10 2023-06-27 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. 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. ClinVar contains an entry for this variant (Variation ID: 922568). This variant has not been reported in the literature in individuals affected with DSG2-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamine, which is neutral and polar, with arginine, which is basic and polar, at codon 853 of the DSG2 protein (p.Gln853Arg).
All of Us Research Program, National Institutes of Health RCV004008321 SCV004821808 uncertain significance Arrhythmogenic right ventricular cardiomyopathy 2023-04-27 criteria provided, single submitter clinical testing This missense variant replaces glutamine with arginine at codon 853 of the DSG2 protein. Computational prediction tool suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <=0.5, PMID: 27666373). Splice site prediction tools suggest that this variant may not impact RNA splicing. To our knowledge, functional studies have not been performed for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/31412 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.
Ambry Genetics RCV004033080 SCV004859460 uncertain significance Cardiovascular phenotype 2022-11-18 criteria provided, single submitter clinical testing The c.2558A>G (p.Q853R) alteration is located in exon 15 (coding exon 15) of the DSG2 gene. This alteration results from a A to G substitution at nucleotide position 2558, causing the glutamine (Q) at amino acid position 853 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.
GeneDx RCV004768895 SCV005379924 uncertain significance not provided 2023-12-15 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

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