1. Health

Discuss in my forum

BRCA2 Gene Definition

By , About.com Guide

Updated March 10, 2008

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

BRCA2 Gene

Crystal structure of a RAD51-BRCA2 BRC repeat complex

Pellegrini, L., Yu, D.S., Lo, T., Anand, S., Lee, M., Blundell, T.L., Venkitaraman, A.R.
Definition: BRCA2 is a gene that, when healthy, prevents breast tumors from forming. BRCA2 makes a protein that is involved in DNA repair and genetic stability. If BRCA2 is broken (mutated), the protein that it makes is unable to repair broken DNA, leaving your breast cells susceptible to the growth of cancer.
Also Known As: breast cancer 2, early onset
Common Misspellings: BCRA2
Examples:
There are more than 450 known mutations of the BRCA2 gene, most of which increase the risk of developing breast cancer. BRCA2 was identified in 1995, and is associated with hereditary breast cancer, as well as ovarian, male breast, pancreatic, prostate, laryngeal, and ocular cancers.

Image Source:

Pellegrini, L., Yu, D.S., Lo, T., Anand, S., Lee, M., Blundell, T.L., Venkitaraman, A.R. (2002) Insights into DNA recombination from the structure of a RAD51-BRCA2 complex Nature 420: 287-293, Courtesy of Protein Data Bank, Research Collaboratory for Structural Bioinformatics (RCSB).

©2012 About.com. All rights reserved.

A part of The New York Times Company.

We comply with the HONcode standard
for trustworthy health
information: verify here.