Stable interaction between the products of the BRCA1 and BRCA2 tumor suppressor genes in mitotic and meiotic cells

  • Junjie Chen
  • , Daniel P. Silver
  • , Deepika Walpita
  • , Sharon B. Cantor
  • , Adi F. Gazdar
  • , Gail Tomlinson
  • , Fergus J. Couch
  • , Barbara L. Weber
  • , Terry Ashley
  • , David M. Livingston
  • , Ralph Scully

Research output: Contribution to journalArticlepeer-review

525 Scopus citations

Abstract

BRCA1 and BRCA2 account for most cases of familial, early onset breast and/or ovarian cancer and encode products that each interact with hRAD51. Results presented here show that BRCA1 and BRCA2 coexist in a biochemical complex and colocalize in subnuclear foci in somatic cells and on the axial elements of developing synaptonemal complexes. Like BRCA1 and RAD51, BRCA2 relocates to PCNA+ replication sites following exposure of S phase cells to hydroxyurea or UV irradiation. Thus, BRCA1 and BRCA2 participate, together, in a pathway(s) associated with the activation of double-strand break repair and/or homologous recombination. Dysfunction of this pathway may be a general phenomenon in the majority of cases of hereditary breast and/or ovarian cancer.

Original languageEnglish (US)
Pages (from-to)317-328
Number of pages12
JournalMolecular Cell
Volume2
Issue number3
DOIs
StatePublished - Sep 1998
Externally publishedYes

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

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