ClinVar Miner

Submissions for variant NM_000492.4(CFTR):c.1390A>G (p.Lys464Glu)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Johns Hopkins Genomics,Johns Hopkins University RCV001250572 SCV001425432 likely pathogenic Cystic fibrosis 2020-02-19 criteria provided, single submitter clinical testing This variant has been identified in patients with features of cystic fibrosis and it is absent from a large population dataset. The lysine residue at this position is predicted to be in the highly conserved Walker A motif of the first nucleotide binding domain of CFTR. The functional consequence of p.Lys464Glu has not been assessed, but studies of a different substitution at this residue (p.Lys464Ala) demonstrate the importance of this amino acid in CFTR function. Three bioinformatics tools predict that p.Lys464Glu would possibly be damaging and lysine at this position is evolutionarily conserved among all species assessed. We consider c.1390A>G to be likely pathogenic.

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