ClinVar Miner

Submissions for variant NM_000492.4(CFTR):c.3267G>A (p.Trp1089Ter)

dbSNP: rs150020260
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Myriad Genetics, Inc. RCV001263867 SCV001441965 likely pathogenic Cystic fibrosis 2019-02-02 criteria provided, single submitter clinical testing
Ambry Genetics RCV001263867 SCV002610866 pathogenic Cystic fibrosis 2015-05-21 criteria provided, single submitter clinical testing The p.W1089* pathogenic mutation (also known as c.3267G>A), located in coding exon 20 of the CFTR gene, results from a G to A substitution at nucleotide position 3266. This changes the amino acid from a tryptophan to a stop codon within coding exon 20. Another nucleotide substitution (c.3266G>A, also known as 3398G>A) resulting in the same protein alteration was originally reported in two non-Ashkenazi Jewish CF patients with pancreatic insufficiency, both of whom had a parent carrying the alteration (Shoshani et al. Hum. Molec. Genet.1994;3:657-658). This pathogenic mutation is associated with pancreatic insufficiency (PI), decreased lung function, and elevated sweat chloride levels (The Clinical and Functional Translation of CFTR (CFTR2); available at http://cftr2.org. Accessed Dec 3, 2014 and Sosnay PR et al. Nat.Genet.2013;45(10):1160-1167). In addition to the clinical data presented in the literature, since premature stop codons are typically deleterious in nature, this alteration is interpreted as a disease-causing mutation (ACMG Recommendations for Standards for Interpretation and Reporting of Sequence Variations. Revision 2007. Genet Med. 2008;10:294).

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