ClinVar Miner

Submissions for variant NM_000089.4(COL1A2):c.1504G>A (p.Gly502Ser)

dbSNP: rs121912910
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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 RCV002513109 SCV003337040 likely pathogenic Osteogenesis imperfecta type I; Ehlers-Danlos syndrome, classic type, 1 2023-10-06 criteria provided, single submitter clinical testing This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 502 of the COL1A2 protein (p.Gly502Ser). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with COL1A2-related conditions. ClinVar contains an entry for this variant (Variation ID: 17262). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. This variant disrupts the triple helix domain of COL1A2. 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 COL1A2, variants affecting these glycine residues are significantly enriched in individuals with disease (PMID: 9016532, 17078022) compared to the general population (ExAC). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic.
OMIM RCV000018803 SCV000039086 pathogenic Osteogenesis imperfecta, perinatal lethal 1994-11-01 no assertion criteria provided literature only

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