Chromosome Research

, Volume 17, Issue 2, pp 201–214

How cohesin and CTCF cooperate in regulating gene expression

Authors

  • Kerstin S. Wendt
    • Research Institute of Molecular Pathology (IMP)
    • Research Institute of Molecular Pathology (IMP)
Article

DOI: 10.1007/s10577-008-9017-7

Cite this article as:
Wendt, K.S. & Peters, J. Chromosome Res (2009) 17: 201. doi:10.1007/s10577-008-9017-7

Abstract

Cohesin is a DNA-binding protein complex that is essential for sister chromatid cohesion and facilitates the repair of damaged DNA. In addition, cohesin has important roles in regulating gene expression, but the molecular mechanisms of this function are poorly understood. Recent experiments have revealed that cohesin binds to the same sites in mammalian genomes as the zinc finger transcription factor CTCF. At a few loci CTCF has been shown to function as an enhancer-blocking transcriptional insulator, and recent observations indicate that this function depends on cohesin. Here we review what is known about the roles of cohesin and CTCF in regulating gene expression in mammalian cells, and we discuss how cohesin might mediate the insulator function of CTCF.

Keywords

insulatorchromatintranscriptioncohesinCTCF

Abbreviations

ATP

adenosin-5′-triphosphate

CdLS

Cornelia de Lange Syndrome

ChIP

chromatin immunoprecipitation

cHS4

5′HS4 chicken β-globin insulator

CTCF

zinc finger transcription factor

EcR-B1

ecdysone receptor B1

ICR

imprinting control region, also called differentially methylated region or domain (DMR/DMD)

KSHV

Karposi sarcoma-associated herpes virus

LCR

locus control region

ncRNA

non-coding RNA

PEV

position-effect-variegation

qPCR

quantitative polymerase chain reaction

RBS/SC

Roberts/SC Phocomelia Syndrome

RNAi

RNA interference

TEV

tobacco etch virus protease

Copyright information

© Springer Science+Business Media B.V. 2009