ClinVar Miner

Submissions for variant NM_000088.4(COL1A1):c.1247G>T (p.Gly416Val)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ARUP Laboratories, Molecular Genetics and Genomics,ARUP Laboratories RCV001286269 SCV001472811 likely pathogenic none provided 2019-12-10 criteria provided, single submitter clinical testing The COL1A1 c.1247G>T; p.Gly416Val variant, to our knowledge, is not reported in the medical literature or gene specific databases. This variant is also absent from general population databases (Exome Variant Server, Genome Aggregation Database), indicating it is not a common polymorphism. The glycine at codon 416 is highly conserved, and computational analyses (SIFT, PolyPhen-2) predict that this variant is deleterious. This codon is located in a triple helix repeat domain, and glycine substitutions are the most frequent pathogenic alterations in this region (Ben Amor 2011). Additionally, several other surrounding glycine substitutions in this exon have been reported in individuals affected with osteogenesis imperfect types II and IV and are considered pathogenic (Marini 2007). Based on available information, this variant is considered to be likely pathogenic. References: Ben Amor I et al. Genotype-phenotype correlations in autosomal dominant osteogenesis imperfecta. J Osteoporos. 2011; 2011:540178. Marini J et al. Consortium for osteogenesis imperfecta mutations in the helical domain of type I collagen: regions rich in lethal mutations align with collagen binding sites for integrins and proteoglycans. Hum Mutat. 2007 Mar;28(3):209-21.

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