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BRCA2 - breast cancer 2, early onset
Entrez Gene Name: breast cancer 2, early onset
Synonyms: AI256696, AW045498, BRCA2, BRCC2, BROVCA2, FACD, FAD, FAD1, FANCB, FANCD, FANCD1, RAB163

Gene Summary

  • Human (675): Inherited mutations in BRCA1 and this gene, BRCA2, confer increased lifetime risk of developing breast or ovarian cancer. Both BRCA1 and BRCA2 are involved in maintenance of genome stability, specifically the homologous recombination pathway for double-strand DNA repair. The BRCA2 protein contains several copies of a 70 aa motif called the BRC motif, and these motifs mediate binding to the RAD51 recombinase which functions in DNA repair. BRCA2 is considered a tumor suppressor gene, as tumors with BRCA2 mutations generally exhibit loss of heterozygosity (LOH) of the wild-type allele. [provided by RefSeq]
  • Rat (360254): tumor suppression gene; involved in repair of double-strand DNA breaks (DSBs) by homologous recombination [RGD]

Cell Regulation

Regulates:
  • RAD51
  • BRCA2
  • Histone h4
View all 14 in IPA
Regulated by:
  • doxorubicin
  • methylselenic acid
  • dexamethasone
View all 36 in IPA
Binds:
  • RAD51
  • DMC1
  • SHFM1
View all 58 in IPA
Role in cell:
  • proliferation
  • DNA damage response
  • survival
View all 21 in IPA
Disease:
  • breast cancer
  • tumorigenesis
  • early-onset breast cancer
View all 14 in IPA

Biological Process

brain development, cell aging, cell proliferation, centrosome duplication, chordate embryonic development, chromosome organization, cytokinesis during cell cycle, DNA damage response, signal transduction by p53 class mediator resulting in induction of apoptosis, DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator, DNA damage response, signal transduction resulting in induction of apoptosis, DNA recombination, DNA repair, double-strand break repair, double-strand break repair via homologous recombination, female gonad development, inner cell mass cell proliferation, male meiosis I, mammary gland development, multicellular organism growth, negative regulation of mammary gland epithelial cell proliferation, nucleotide-excision repair, oocyte maturation, positive regulation of mitotic cell cycle, regulation of S phase of mitotic cell cycle, regulation of transcription, DNA-dependent, replication fork protection, response to DNA damage stimulus, response to estrogen stimulus, response to gamma radiation, response to genistein, response to nutrient, response to UV-C, response to X-ray, spermatogenesis

Cellular Components

BRCA2-MAGE-D1 complex, centrosome, cytoplasm, nucleoplasm, nucleus, secretory granule

Literature References

  • 15800615Esashi F, Christ N, Gannon J, Liu Y, Hunt T, Jasin M, West SC. CDK-dependent phosphorylation of BRCA2 as a regulatory mechanism for recombinational repair.Nature 2005 Mar 31;434(7033):598-604
  • 11207365Marmorstein LY, Kinev AV, Chan GK, Bochar DA, Beniya H, Epstein JA, Yen TJ, Shiekhattar R. A human BRCA2 complex containing a structural DNA binding component influences cell cycle progression.Cell 2001 Jan 26;104(2):247-57
  • 16731627Saeki H, Siaud N, Christ N, Wiegant WW, van Buul PP, Han M, Zdzienicka MZ, Stark JM, Jasin M. Suppression of the DNA repair defects of BRCA2-deficient cells with heterologous protein fusions.Proc Natl Acad Sci U S A 2006 Jun 06;103(23):8768-73
  • View 898 categorized literature findings and their references in IPA

Molecular Functions

gamma-tubulin binding, histone acetyltransferase activity, protein binding, single-stranded DNA binding, transcription activator activity

Protein Domains

activation domain, BRC repeat, BRCA2 repeat, carboxy terminal domain, DNA binding domain, gamma-tubulin binding, Histone acetyltransferase, protein binding, single-stranded DNA binding, transcription activation domain, transcription regulator, transcriptional activator

Subcellular Locations

chromosomes, cytoplasm, detergent resistant lipid raft fraction, nuclear foci, nuclear fraction, nuclear scaffolds, nucleus