ClinVar Miner

Submissions for variant NM_000128.3(F11):c.1247G>A (p.Cys416Tyr) (rs779802284)

Minimum review status: Collection method:
Minimum conflict level:
ClinVar version:
Total submissions: 2
Download table as spreadsheet
Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Counsyl RCV000411689 SCV000487179 likely pathogenic Hereditary factor XI deficiency disease 2016-10-20 criteria provided, single submitter clinical testing
Illumina Clinical Services Laboratory,Illumina RCV000411689 SCV000915086 pathogenic Hereditary factor XI deficiency disease 2018-10-16 criteria provided, single submitter clinical testing The F11 c.1247G>A (p.Cys416Tyr) missense variant, also known as p.Cys398Tyr, has been reported in at least five studies in which it is found in at least 12 probands with factor XI deficiency, including in at least three in a homozygous state, in two in a compound heterozygous state, and in at least seven in a heterozygous state (Kravtsov et al. 2005; Mitchell et al. 2006; Zucker et al. 2007; Saunders et al. 2009; Kılıç et al. 2014). Control data are unavailable for this variant, which is reported at a frequency of 0.000089 in the Latino population of the Genome Aggregation Database. Functional studies in 293 and BHK fibroblasts demonstrated that the p.Cys416Tyr variant protein formed intracellular dimers but is poorly secreted, and demonstrates a dominant-negative effect on wildtype fXI secretion when cotransfected with wild type fXI (Kravtsov et al. 2005). Structural analysis indicated that the variant breaks the disulfide bridge between residues Cys398 and Cys414 disrupting folding of the serine protease domain of the protein (O'Connell et al. 2005; Saunders et al. 2009). Based on the evidence, the p.Cys416Tyr variant is classified as pathogenic for factor XI deficiency and has been described in cases following both autosomal dominant and recessive inheritance. This variant was observed by ICSL as part of a predisposition screen in an ostensibly healthy population.

The information on this website is not intended for direct diagnostic use or medical decision-making without review by a genetics professional. Individuals should not change their health behavior solely on the basis of information contained on this website. Neither the University of Utah nor the National Institutes of Health independently verfies the submitted information. If you have questions about the information contained on this website, please see a health care professional.