ClinVar Miner

Submissions for variant NM_000089.4(COL1A2):c.2663C>G (p.Ala888Gly)

gnomAD frequency: 0.00001  dbSNP: rs752453618
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Invitae RCV002232968 SCV000833288 uncertain significance Osteogenesis imperfecta type I; Ehlers-Danlos syndrome, classic type, 1 2018-03-01 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. This sequence change replaces alanine with glycine at codon 888 of the COL1A2 protein (p.Ala888Gly). The alanine residue is moderately conserved and there is a small physicochemical difference between alanine and glycine. This variant is present in population databases (rs752453618, ExAC 0.001%). This variant has been reported in an individual in the Osteogenesis Imperfecta Leiden Open-source Variation Database (PMID: 21520333). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain.

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