Epigenetic control of nuclear architecture

Cell Mol Life Sci. 2007 Feb;64(4):449-57. doi: 10.1007/s00018-007-6358-x.

Abstract

The cell nucleus is a highly structured compartment where nuclear components are thought to localize in non-random positions. Correct positioning of large chromatin domains may have a direct impact on the localization of other nuclear components, and can therefore influence the global functionality of the nuclear compartment. DNA methylation of cytosine residues in CpG dinucleotides is a prominent epigenetic modification of the chromatin fiber. DNA methylation, in conjunction with the biochemical modification pattern of histone tails, is known to lock chromatin in a close and transcriptionally inactive conformation. The relationship between DNA methylation and large-scale organization of nuclear architecture, however, is poorly understood. Here we briefly summarize present concepts of nuclear architecture and current data supporting a link between DNA methylation and the maintenance of large-scale nuclear organization.

Publication types

  • Review

MeSH terms

  • Animals
  • Cell Nucleus / genetics*
  • Cell Nucleus / physiology*
  • DNA Methylation
  • Epigenesis, Genetic*
  • Gene Order
  • Humans