53BP1 regulates DSB repair using Rif1 to control 5' end resection.

  title={53BP1 regulates DSB repair using Rif1 to control 5' end resection.},
  author={Michal Zimmermann and Francisca Lottersberger and Sara B C Buonomo and Agnel Sfeir and Titia de Lange},
  volume={339 6120},
The choice between double-strand break (DSB) repair by either homology-directed repair (HDR) or nonhomologous end joining (NHEJ) is tightly regulated. Defects in this regulation can induce genome instability and cancer. 53BP1 is critical for the control of DSB repair, promoting NHEJ, and inhibiting the 5' end resection needed for HDR. Using dysfunctional telomeres and genome-wide DSBs, we identify Rif1 as the main factor used by 53BP1 to impair 5' end resection. Rif1 inhibits resection… CONTINUE READING
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Goodarzi , 53 BP 1mediated DNA double strand break repair : insert bad pun here

  • A. T. Noon, A. A.
  • DNA Repair
  • 2011

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