Nature Communications (Aug 2016)

PARP3 is a sensor of nicked nucleosomes and monoribosylates histone H2BGlu2

  • Gabrielle J. Grundy,
  • Luis M. Polo,
  • Zhihong Zeng,
  • Stuart L. Rulten,
  • Nicolas C. Hoch,
  • Pathompong Paomephan,
  • Yingqi Xu,
  • Steve M. Sweet,
  • Alan W. Thorne,
  • Antony W. Oliver,
  • Steve J. Matthews,
  • Laurence H. Pearl,
  • Keith W. Caldecott

DOI
https://doi.org/10.1038/ncomms12404
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 12

Abstract

Read online

Chromosomal single-strand DNA breaks occur frequently and require repair to avoid disease outcomes. Here, the authors show that in bird cells, PARP3 accelerates this repair, and use structural biology and cell biology techniques to reveal details of the mechanism of action.