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BRCA 2 has the cytogenetic location 13q12.3 or the q arm of Chromosome 13 at position 12.3. Both genes produce proteins that help repair damaged DNA, keeping the genetic material of the cell stable. A damaged BRCA gene in either location can lead to increased risk of cancer, particularly breast or ovarian in women.
Certain variations of the BRCA1 gene lead to an increased risk for breast cancer as part of a hereditary breast–ovarian cancer syndrome. Researchers have identified hundreds of mutations in the BRCA1 gene, many of which are associated with an increased risk of cancer. Females with an abnormal BRCA1 or BRCA2 gene have up to an 80% risk of ...
BRCA2 and BRCA2 (/ ˌ b r æ k ə ˈ t uː / [5]) are human genes and their protein products, respectively. The official symbol (BRCA2, italic for the gene, nonitalic for the protein) and the official name (originally breast cancer 2; currently BRCA2, DNA repair associated) are maintained by the HUGO Gene Nomenclature Committee.
The genes BRCA1 and BRCA2 show loss of heterozygosity in samplings of tumors from patients who have germline mutations. [citation needed] BRCA1/2 are genes that produce proteins which regulate the DNA repair pathway by binding to Rad51. [citation needed]
Jen Culton learned she had the BRCA1 gene mutation after her older sister's breast-cancer diagnosis. She decided to have two of her daughters tested; one daughter also has the BRCA1 gene mutation.
Ubiquinated FANCD2 complexes with BRCA1 and RAD51. [12] The PALB2 protein acts as a hub, [13] bringing together BRCA1, BRCA2 and RAD51 at the site of a DNA double-strand break, and also binds to RAD51C, a member of the RAD51 paralog complex RAD51B-RAD51C-RAD51D-XRCC2 (BCDX2).
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