Reevaluation of the BRCA2 truncating allele c.9976A > T (p.Lys3326Ter) in a familial breast cancer context
AuthorThompson, ER; Gorringe, KL; Rowley, SM; Li, N; McInerny, S; Wong-Brown, MW; Devereux, L; Li, J; Trainer, AH; Mitchell, G; ...
Source TitleScientific Reports
PublisherNATURE PUBLISHING GROUP
University of Melbourne Author/sGorringe, Kylie; Trainer, Alison; Mitchell, Gillian; James, Paul; Hopper, John; Fox, Stephen; Li, Jason; Campbell, Ian; Thompson, Ella; Devereux, Lisa; ...
AffiliationSir Peter MacCallum Department of Oncology
Medicine and Radiology
Melbourne School of Population and Global Health
Document TypeJournal Article
CitationsThompson, E. R., Gorringe, K. L., Rowley, S. M., Li, N., McInerny, S., Wong-Brown, M. W., Devereux, L., Li, J., Trainer, A. H., Mitchell, G., Scott, R. J., James, P. A. & Campbell, I. G. (2015). Reevaluation of the BRCA2 truncating allele c.9976A > T (p.Lys3326Ter) in a familial breast cancer context. SCIENTIFIC REPORTS, 5 (1), https://doi.org/10.1038/srep14800.
Access StatusOpen Access
The breast cancer predisposition gene, BRCA2, has a large number of genetic variants of unknown effect. The variant rs11571833, an A > T transversion in the final exon of the gene that leads to the creation of a stop codon 93 amino acids early (K3326*), is reported as a neutral polymorphism but there is some evidence to suggest an association with an increased risk of breast cancer. We assessed whether this variant was enriched in a cohort of breast cancer cases ascertained through familial cancer clinics compared to population-based non-cancer controls using a targeted sequencing approach. We identified the variant in 66/2634 (2.5%) cases and 33/1996 (1.65%) controls, indicating an enrichment in the breast cancer cases (p = 0.047, OR 1.53, 95% CI 1.00-2.34). This data is consistent with recent iCOGs data suggesting that this variant is not neutral with respect to breast cancer risk. rs11571833 may need to be included in SNP panels for evaluating breast cancer risk.
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