ClinVar Miner

Submissions for variant NM_000132.3(F8):c.766T>A (p.Tyr256Asn) (rs1569559955)

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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 RCV000756117 SCV000883836 pathogenic not provided 2018-06-27 criteria provided, single submitter clinical testing The F8 c.766T>A; p.Tyr256Asn variant has been described in the literature and observed at ARUP in individuals with mild hemophilia A (Guillet 2006). It is absent from general population databases (1000 Genomes Project, Exome Variant Server, and Genome Aggregation Database), indicating it is not a common polymorphism. The tyrosine at codon 256 is highly conserved, and computational algorithms (PolyPhen-2, SIFT) predict that this variant is deleterious. Additionally, several nearby variants have been reported in individuals with hemophilia A and are considered pathogenic (see link to F8 database and references therein). Based on available information, this variant is considered pathogenic. References: F8 database: Guillet B et al. Detection of 95 novel mutations in coagulation factor VIII gene F8 responsible for hemophilia A: results from a single institution. Hum Mutat. 2006 Jul;27(7):676-85.

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