Nature Communications (Apr 2022)

A POLD3/BLM dependent pathway handles DSBs in transcribed chromatin upon excessive RNA:DNA hybrid accumulation

  • S. Cohen,
  • A. Guenolé,
  • I. Lazar,
  • A. Marnef,
  • T. Clouaire,
  • D. V. Vernekar,
  • N. Puget,
  • V. Rocher,
  • C. Arnould,
  • M. Aguirrebengoa,
  • M. Genais,
  • N. Firmin,
  • R. A. Shamanna,
  • R. Mourad,
  • V. A. Bohr,
  • V. Borde,
  • G. Legube

DOI
https://doi.org/10.1038/s41467-022-29629-2
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 15

Abstract

Read online

DNA Double Strand breaks in transcriptionally active loci (TC-DSBs) undergo a dedicated repair pathway. Here, the authors show that excessive RNA:DNA hybrid accumulation at TC-DSBs elicits POLD3/BLM-dependent DNA synthesis that induces cell toxicity.