Cohesin Biology: From Passive Rings to Molecular Motors

Trends Genet. 2020 Jun;36(6):387-389. doi: 10.1016/j.tig.2020.03.001. Epub 2020 Mar 31.

Abstract

The loop extrusion hypothesis postulated that extrusion of DNA loops through cohesin rings organizes genomes. Recent findings suggest that cohesin itself is a molecular motor that extrudes DNA. This has important implications not only for the organization of interphase chromatin but also for other processes where cohesin plays vital roles.

Keywords: SMC complex; cohesin; loop extrusion; meiosis; recombination.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Cycle Proteins / genetics
  • Cell Cycle Proteins / metabolism*
  • Cell Nucleus / genetics*
  • Chromatin Assembly and Disassembly*
  • Chromosomal Proteins, Non-Histone / genetics
  • Chromosomal Proteins, Non-Histone / metabolism*
  • Cohesins
  • DNA Packaging
  • DNA Replication*
  • Humans
  • Meiosis*

Substances

  • Cell Cycle Proteins
  • Chromosomal Proteins, Non-Histone