Document Detail


RNA Polymerase III Transcription - Regulated by Chromatin Structure and Regulator of Nuclear Chromatin Organization.
MedLine Citation:
PMID:  23150255     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
RNA polymerase III (Pol III) transcription is regulated by modifications of the chromatin. DNA methylation and post-translational modifications of histones, such as acetylation, phosphorylation and methylation have been linked to Pol III transcriptional activity. In addition to being regulated by modifications of DNA and histones, Pol III genes and its transcription factors have been implicated in the organization of nuclear chromatin in several organisms. In yeast, the ability of the Pol III transcription system to contribute to nuclear organization seems to be dependent on direct interactions of Pol III genes and/or its transcription factors TFIIIC and TFIIIB with the structural maintenance of chromatin (SMC) protein-containing complexes cohesin and condensin. In human cells, Pol III genes and transcription factors have also been shown to colocalize with cohesin and the transcription regulator and genome organizer CCCTC-binding factor (CTCF). Furthermore, chromosomal sites have been identified in yeast and humans that are bound by partial Pol III machineries (extra TFIIIC sites - ETC; chromosome organizing clamps - COC). These ETCs/COC as well as Pol III genes possess the ability to act as boundary elements that restrict spreading of heterochromatin.
Authors:
Chiara Pascali; Martin Teichmann
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Publication Detail:
Type:  JOURNAL ARTICLE    
Journal Detail:
Title:  Sub-cellular biochemistry     Volume:  61     ISSN:  0306-0225     ISO Abbreviation:  Subcell. Biochem.     Publication Date:  2013  
Date Detail:
Created Date:  2012-11-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0316571     Medline TA:  Subcell Biochem     Country:  -    
Other Details:
Languages:  ENG     Pagination:  261-287     Citation Subset:  -    
Affiliation:
Institut Européen de Chimie et Biologie (IECB), Université Bordeaux Segalen / INSERM U869, 2, rue Robert Escarpit, 33607, Pessac, France.
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