Looping back to leap forward: transcription enters a new era

Cell. 2014 Mar 27;157(1):13-25. doi: 10.1016/j.cell.2014.02.009.

Abstract

Comparative genome analyses reveal that organismal complexity scales not with gene number but with gene regulation. Recent efforts indicate that the human genome likely contains hundreds of thousands of enhancers, with a typical gene embedded in a milieu of tens of enhancers. Proliferation of cis-regulatory DNAs is accompanied by increased complexity and functional diversification of transcriptional machineries recognizing distal enhancers and core promoters and by the high-order spatial organization of genetic elements. We review progress in unraveling one of the outstanding mysteries of modern biology: the dynamic communication of remote enhancers with target promoters in the specification of cellular identity.

Publication types

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

MeSH terms

  • Animals
  • Cell Differentiation*
  • DNA-Directed RNA Polymerases / metabolism
  • Enhancer Elements, Genetic*
  • Gene Expression Regulation*
  • Humans
  • Promoter Regions, Genetic*
  • Transcription Factors / metabolism
  • Transcription, Genetic

Substances

  • Transcription Factors
  • DNA-Directed RNA Polymerases