Nature Communications (Dec 2017)

Cryo-EM structure of a licensed DNA replication origin

  • Ferdos Abid Ali,
  • Max E. Douglas,
  • Julia Locke,
  • Valerie E. Pye,
  • Andrea Nans,
  • John F. X. Diffley,
  • Alessandro Costa

DOI
https://doi.org/10.1038/s41467-017-02389-0
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 10

Abstract

Read online

Origins of replication are licensed by loading of MCM onto DNA, and origin firing depends on interaction with Cdc45 and GINS to form two CMG holo-helicases. Here, authors determine the cryo-EM structures of DNA-bound MCM and visualise a phospho-dependent MCM element important for Cdc45 recruitment.