ClinVar Miner

Submissions for variant NM_001848.3(COL6A1):c.806G>A (p.Gly269Glu)

dbSNP: rs2077759104
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
CeGaT Center for Human Genetics Tuebingen RCV001091475 SCV001247542 pathogenic not provided 2019-05-01 criteria provided, single submitter clinical testing
Invitae RCV001862695 SCV002232700 pathogenic Bethlem myopathy 1 2023-06-02 criteria provided, single submitter clinical testing Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. For these reasons, this variant has been classified as Pathogenic. This variant disrupts the triple helix domain of COL6A1. Glycine residues within the Gly-Xaa-Yaa repeats of the triple helix domain are required for the structure and stability of fibrillar collagens (PMID: 7695699, 8218237, 19344236). In COL6A1, variants at these glycine residues are significantly enriched in individuals with autosomal dominant disease (PMID: 15689448, 24038877) compared to the general population (ExAC). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. ClinVar contains an entry for this variant (Variation ID: 871479). This missense change has been observed in individual(s) with autosomal dominant Ullrich congenital muscular dystrophy (PMID: 24271325, 34167565). In at least one individual the variant was observed to be de novo. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 269 of the COL6A1 protein (p.Gly269Glu).

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