ClinVar Miner

Submissions for variant NM_001848.3(COL6A1):c.860G>A (p.Gly287Glu)

dbSNP: rs2077761954
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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 RCV001039119 SCV001202631 pathogenic Bethlem myopathy 1A 2022-06-04 criteria provided, single submitter clinical testing ClinVar contains an entry for this variant (Variation ID: 837724). For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Gly287 amino acid residue in COL6A1. Other variant(s) that disrupt this residue have been observed in individuals with COL6A1-related conditions (PMID: 20976770, 27447704), which suggests that this may be a clinically significant amino acid residue. 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). 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: "Not Available"; Align-GVGD: "Class C65"). This missense change has been observed in individual(s) with clinical features of type VI collagenopathies (Invitae). 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 287 of the COL6A1 protein (p.Gly287Glu).
Genomic Medicine Center of Excellence, King Faisal Specialist Hospital and Research Centre RCV003989629 SCV004806365 uncertain significance Ullrich congenital muscular dystrophy 1A 2024-03-25 criteria provided, single submitter clinical testing

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