ClinVar Miner

Submissions for variant NM_000090.4(COL3A1):c.845G>T (p.Gly282Val)

dbSNP: rs1576463663
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000822461 SCV000963263 pathogenic Ehlers-Danlos syndrome, type 4 2018-09-24 criteria provided, single submitter clinical testing For these reasons, this variant has been classified as Pathogenic. 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 COL3A1, missense variants at these glycine residues are significantly enriched in individuals with disease (PMID: 24922459, 25758994) 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 C0"). This variant has been observed to be de novo in an individual affected with features of Ehlers-Danlos syndrome, vascular type (Invitae). This variant is not present in population databases (ExAC no frequency). This sequence change replaces glycine with valine at codon 282 of the COL3A1 protein (p.Gly282Val). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and valine.

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