- BACH1, a novel helicase-like protein, interacts directly with BRCA1 and contributes to its DNA repair function.
BACH1, a novel helicase-like protein, interacts directly with BRCA1 and contributes to its DNA repair function.
Cell (2001-04-13)
S B Cantor, D W Bell, S Ganesan, E M Kass, R Drapkin, S Grossman, D C Wahrer, D C Sgroi, W S Lane, D A Haber, D M Livingston
PMID11301010
RESUMEN
BRCA1 interacts in vivo with a novel protein, BACH1, a member of the DEAH helicase family. BACH1 binds directly to the BRCT repeats of BRCA1. A BACH1 derivative, bearing a mutation in a residue that was essential for catalytic function in other helicases, interfered with normal double-strand break repair in a manner that was dependent on its BRCA1 binding function. Thus, BACH1/BRCA1 complex formation contributes to a key BRCA1 activity. In addition, germline BACH1 mutations affecting the helicase domain were detected in two early-onset breast cancer patients and not in 200 matched controls. Thus, it is conceivable that, like BRCA1, BACH1 is a target of germline cancer-inducing mutations.