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BRCA1

Chr 17q21.31

BRCA1 DNA repair associated

Aliases:
RNF53, BRCC1, PPP1R53, FANCS
MANE:
ENST00000357654.9

Annotations refreshed 8 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Additional findings health related

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Additional findings health related - adult specific

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Additional findings health related - CNV analysis adult specific

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Adult solid tumours cancer susceptibility

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Adult solid tumours for rare disease

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Breast cancer pertinent cancer susceptibility

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Childhood solid tumours

    BIALLELIC, autosomal or pseudoautosomal
  • Childhood solid tumours cancer susceptibility

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • breast cancer

    0.84
  • Hereditary breast and ovarian cancer syndrome

    0.83
  • Fanconi anemia, complementation group S

    0.82
  • ovarian cancer

    0.81
  • breast neoplasm

    0.80
  • breast-ovarian cancer, familial, susceptibility to, 1

    0.80
  • cancer

    0.78
  • breast carcinoma

    0.74
  • hereditary breast ovarian cancer syndrome

    0.71
  • Fanconi anemia complementation group A

    0.71

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

Breast cancer type 1 susceptibility protein

E3 ubiquitin-protein ligase that specifically mediates the formation of 'Lys-6'-linked polyubiquitin chains and plays a central role in DNA repair by facilitating cellular responses to DNA damage (PubMed:10500182, PubMed:12887909, PubMed:12890688, PubMed:14976165, PubMed:16818604, PubMed:17525340, PubMed:19261748). It is unclear whether it also mediates the formation of other types of polyubiquitin chains (PubMed:12890688). The BRCA1-BARD1 heterodimer coordinates a diverse range of cellular pathways such as DNA damage repair, ubiquitination and transcriptional regulation to maintain genomic stability (PubMed:12890688, PubMed:14976165, PubMed:20351172). Regulates centrosomal microtubule nucleation (PubMed:18056443). Required for appropriate cell cycle arrests after ionizing irradiation in both the S-phase and the G2 phase of the cell cycle (PubMed:10724175, PubMed:11836499, PubMed:12183412, PubMed:19261748). Required for FANCD2 targeting to sites of DNA damage (PubMed:12887909). Inhibits lipid synthesis by binding to inactive phosphorylated ACACA and preventing its dephosphorylation (PubMed:16326698). Contributes to homologous recombination repair (HRR) via its direct interaction with PALB2, fine-tunes recombinational repair partly through its modulatory role in the PALB2-dependent loading of BRCA2-RAD51 repair machinery at DNA breaks (PubMed:19369211). Component of the BRCA1-RBBP8 complex which regulates CHEK1 activation and controls cell cycle G2/M checkpoints on DNA damage via BRCA1-mediated ubiquitination of RBBP8 (PubMed:16818604). Acts as a transcriptional activator (PubMed:20160719)

Curated MONDO disease pages that list BRCA1 among their top associated genes.

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.