Article · Wikipedia archive · Last revised Jun 16, 2026

BCCIP

BRCA2 and CDKN1A-interacting protein is a protein that is encoded by the BCCIP gene in humans.

Last revised
Jun 16, 2026
Read time
≈ 4 min
Length
984 w
Citations
15
Source
BCCIP
Identifiers
AliasesBCCIP, TOK-1, TOK1, BRCA2 and CDKN1A interacting protein
External IDsOMIM: 611883; MGI: 1913415; HomoloGene: 41629; GeneCards: BCCIP; OMA:BCCIP - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_078469
NM_016567
NM_078468

NM_025392

RefSeq (protein)

NP_057651
NP_510868
NP_510869

NP_079668

Location (UCSC)Chr 10: 125.82 – 125.85 MbChr 7: 133.31 – 133.32 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

BRCA2 and CDKN1A-interacting protein is a protein that is encoded by the BCCIP gene in humans.567

This gene product was isolated based on its interaction with BRCA2 and p21 proteins. It is an evolutionarily conserved nuclear protein with multiple interacting domains. The N-terminal half shares moderate homology with regions of calmodulin and M-calpain, suggesting that it may also bind calcium. Functional studies indicate that this protein may be an important cofactor for BRCA2 in tumor suppression, and a modulator of CDK2 kinase activity via p21. Several transcript variants encoding different isoforms have been described for this gene.7

Interactions

BCCIP has been shown to interact with BRCA2,5 P21,6 and PTPmu (PTPRM)8

References

References

  1. GRCh38: Ensembl release 89: ENSG00000107949Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000030983Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Liu J, Yuan Y, Huan J, Shen Z (Apr 2001). "Inhibition of breast and brain cancer cell growth by BCCIPalpha, an evolutionarily conserved nuclear protein that interacts with BRCA2". Oncogene. 20 (3): 336–45. doi:10.1038/sj.onc.1204098. PMID 11313963.
  6. Ono T, Kitaura H, Ugai H, Murata T, Yokoyama KK, Iguchi-Ariga SM, Ariga H (Oct 2000). "TOK-1, a novel p21Cip1-binding protein that cooperatively enhances p21-dependent inhibitory activity toward CDK2 kinase". J Biol Chem. 275 (40): 31145–54. doi:10.1074/jbc.M003031200. PMID 10878006.
  7. "Entrez Gene: BCCIP BRCA2 and CDKN1A interacting protein".
  8. Phillips-Mason PJ, Mourton T, Major DL, Brady-Kalnay SM (2008). "BCCIP associates with the receptor protein tyrosine phosphatase PTPmu". J Cell Biochem. 105 (4): 1059–72. doi:10.1002/jcb.21907. PMC 2758318. PMID 18773424.
External links
Further reading

Further reading