Chromatin structure and transcriptional regulation of the beta-globin locus

Exp Cell Res. 2002 Aug 1;278(1):1-11. doi: 10.1006/excr.2002.5555.

Abstract

Chromatin structure plays a critical role in eukaryotic gene transcriptional regulation. The beta-globin locus provides an ideal system within which to study the interplay between chromatin structure and transcriptional regulation. The process of beta-globin locus activation is remarkably intricate and involves at least two distinct events: chromatin opening and gene activation. Great progress has been made in recent years in understanding how locus control regions confer high-level expression to linked genes. Current interest focuses on some special events, including formation of locus control region hypersensitivity sites, ATP-dependent chromatin remodeling, localized H3 hyperacetylation, and intergenic transcription, which link chromatin and beta-globin locus regulation. These events, and their possible molecular bases, are summarized together with speculations concerning their connections.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Acetylation
  • Animals
  • Chromatin / chemistry
  • Chromatin / physiology*
  • DNA, Intergenic / genetics
  • Gene Expression Regulation
  • Globins / genetics*
  • Histones / metabolism
  • Histones / physiology*
  • Humans
  • Locus Control Region / genetics*
  • Transcription, Genetic / genetics*
  • Transcriptional Activation

Substances

  • Chromatin
  • DNA, Intergenic
  • Histones
  • Globins