ClinVar Miner

Submissions for variant NM_000038.6(APC):c.1431dup (p.Leu478fs)

dbSNP: rs1554081640
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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000657512 SCV000779248 pathogenic not provided 2018-04-23 criteria provided, single submitter clinical testing This duplication of one nucleotide in APC is denoted c.1431dupA at the cDNA level and p.Leu478IlefsX7 (L478IfsX7) at the protein level. The normal sequence, with the base that is duplicated in brackets, is CAGA[dupA]TTAT. The duplication causes a frameshift which changes a Leucine to an Isoleucine at codon 478, and creates a premature stop codon at position 7 of the new reading frame. Although this variant has not, to our knowledge, been reported in the literature, it is predicted to cause loss of normal protein function through either protein truncation or nonsense-mediated mRNA decay. Based on currently available evidence, we consider this duplication to be a pathogenic variant.

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