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Certain variations of the BRCA2 gene increase risks for breast cancer as part of a hereditary breast–ovarian cancer syndrome. Researchers have identified hundreds of mutations in the BRCA2 gene, many of which cause an increased risk of cancer.
Women with harmful mutations in either BRCA1 or BRCA2 have a risk of breast cancer that is about five times the normal risk, and a risk of ovarian cancer that is about ten to thirty times normal. [3] The risk of breast and ovarian cancer is higher for women with a high-risk BRCA1 mutation than with a BRCA2 mutation. Having a high-risk mutation ...
Harmful mutations in BRCA2 - a gene responsible for repairing damaged DNA - significantly increase the risk of breast, ovarian, prostate and pancreatic cancers. About 45% of women who inherit a ...
Absolute risk of cancers in BRCA1 or BRCA2 mutation. [4]A number of genes are associated with HBOC. [5] The most common of the known causes of HBOC are: BRCA mutations: [5] Harmful mutations in the BRCA1 and BRCA2 genes can produce very high rates of breast and ovarian cancer, as well as increased rates of other cancers.
[13] [11] BRCA1 and BRCA2 have been described as "breast cancer susceptibility genes" and "breast cancer susceptibility proteins". The predominant allele has a normal, tumor-suppressive function whereas high penetrance mutations in these genes cause a loss of tumor-suppressive function which correlates with an increased risk of breast cancer. [14]
Breast and ovarian cancers: Medicare may cover genetic testing to determine if a person has a mutation in the BRCA1 and BRCA2 genes, which can help identify their risk of breast and ovarian cancers.