ClinVar Miner

Submissions for variant NM_001845.6(COL4A1):c.1670G>C (p.Arg557Thr)

gnomAD frequency: 0.00001  dbSNP: rs781701789
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Neuberg Centre For Genomic Medicine, NCGM RCV002510656 SCV002820157 uncertain significance Brain small vessel disease 1 with or without ocular anomalies criteria provided, single submitter clinical testing The missense variant in c.1670G>C (p.Arg557Thr) in COL4A1 gene has not been reported previously as a pathogenic variant nor as a benign variant, to our knowledge. The p.Arg557Thr variant is novel (not in any individuals) in gnomAD Exomes and 1000 Genomes. The amino acid Arg at position 557 is changed to a Thr changing protein sequence and it might alter its composition and physico-chemical properties. The variant is predicted to be damaging by PolyPhen2 and the residue is conserved across species. The amino acid change p.Arg557Thr in COL4A1 is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as Uncertain Significance

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