5'HS5 of the human beta-globin locus control region is dispensable for the formation of the beta-globin active chromatin hub.

ABSTRACT: Hypersensitive site 5 (5'HS5) of the beta-globin Locus Control Region functions as a developmental stage-specific border in erythroid cells. Here, we have analyzed the role of 5'HS5 in the three dimensional organization of the beta-gene locus using the Chromatin Conformation Capture (3C) technique. The results show that when 5'HS5 is deleted from the locus, both remote and internal regulatory elements are still able to interact with each other in a three-dimensional configuration termed the Active Chromatin Hub. Thus, the absence of 5'HS5 does not have an appreciable effect on the three dimensional organization of the beta-globin locus. This rules out models in which 5'HS5 nucleates interactions with remote and/or internal regulatory elements. We also determined the binding of CTCF, the on

SUBMITTER: Chan PK 

PROVIDER: S-EPMC2358975 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature