Models of polymer physics for the architecture of the cell nucleus

Wiley Interdiscip Rev Syst Biol Med. 2019 Jul;11(4):e1444. doi: 10.1002/wsbm.1444. Epub 2018 Dec 19.

Abstract

The depth and complexity of data now available on chromosome 3D architecture, derived by new technologies such as Hi-C, have triggered the development of models based on polymer physics to explain the observed patterns and the underlying molecular folding mechanisms. Here, we give an overview of some of the ideas and models from physics introduced to date, along with their progresses and limitations in the description of experimental data. In particular, we focus on the Strings&Binders and the Loop Extrusion model of chromatin architecture. This article is categorized under: Analytical and Computational Methods > Computational Methods.

Keywords: chromatin; computational biology; polymer physics.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Cell Nucleus / chemistry*
  • Cell Nucleus / metabolism
  • Chromatin / chemistry
  • Chromatin / metabolism
  • Chromatin Assembly and Disassembly
  • DNA / chemistry
  • DNA / metabolism
  • Humans
  • Models, Biological*
  • Polymers / chemistry*
  • Thermodynamics

Substances

  • Chromatin
  • Polymers
  • DNA