ClinVar Miner

Submissions for variant NM_014000.3(VCL):c.20G>A (p.Arg7His)

dbSNP: rs764871020
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV001881300 SCV002137660 uncertain significance Dilated cardiomyopathy 1W 2022-11-15 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. 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: "Not Available"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Not Available"). ClinVar contains an entry for this variant (Variation ID: 1378723). This variant has not been reported in the literature in individuals affected with VCL-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces arginine with histidine at codon 7 of the VCL protein (p.Arg7His). The arginine residue is moderately conserved and there is a small physicochemical difference between arginine and histidine.
Ambry Genetics RCV002422952 SCV002730370 uncertain significance Cardiovascular phenotype 2024-08-19 criteria provided, single submitter clinical testing The p.R7H variant (also known as c.20G>A), located in coding exon 1 of the VCL gene, results from a G to A substitution at nucleotide position 20. The arginine at codon 7 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. 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.

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