Linked Life Data

9590696

Source:http://linkedlifedata.com/resource/pubmed/id/9590696

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6680
pubmed:dateCreated
1998-5-27
pubmed:abstractText
The assembly of transcriptional regulatory DNA sequences into chromatin plays a fundamental role in modulating gene expression. The promoter of the mouse mammary-tumour virus (MMTV) is packaged into a regular array of nucleosomes when it becomes stably integrated into mammalian chromosomes, and has been used to investigate the relationship between chromatin architecture and transcriptional activation by the hormone-bound glucocorticoid and progesterone receptors. In mammalian cells that express both of these receptors, the progesterone receptor activates transcription from transiently transfected MMTV DNA but not from organized chromatin templates. Moreover, the activated progesterone receptor inhibits the chromatin remodelling and consequent transcriptional stimulation that is mediated by the glucocorticoid receptor. Here we investigate the mechanism of this inhibition by characterizing the interaction of the glucocorticoid receptor with transcriptional co-activator and chromatin remodelling protein complexes. We show that when this receptor is prevented from interacting with the hBRG1/BAF chromatin remodelling complex, it can activate transcription from transiently transfected DNA but not from organized chromatin templates. Our results indicate that it may be possible to separate the transcriptional activation and chromatin remodelling activities of proteins that interact with hormone receptors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
http://linkedlifedata.com/resource/pubmed/chemical/Chromatin, http://linkedlifedata.com/resource/pubmed/chemical/DNA Helicases, http://linkedlifedata.com/resource/pubmed/chemical/Estrenes, http://linkedlifedata.com/resource/pubmed/chemical/Furans, http://linkedlifedata.com/resource/pubmed/chemical/Hormone Antagonists, http://linkedlifedata.com/resource/pubmed/chemical/Nuclear Proteins, http://linkedlifedata.com/resource/pubmed/chemical/Org 31710, http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Glucocorticoid, http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Progesterone, http://linkedlifedata.com/resource/pubmed/chemical/Smarca4 protein, mouse, http://linkedlifedata.com/resource/pubmed/chemical/Trans-Activators, http://linkedlifedata.com/resource/pubmed/chemical/Transcription Factors
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0028-0836
pubmed:author
pubmed:issnType
Print
pubmed:day
7
pubmed:volume
393
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
88-91
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Chromatin remodelling by the glucocorticoid receptor requires the BRG1 complex.
pubmed:affiliation
Department of Obstetrics & Gynaecology, University of Western Ontario, London Regional Cancer Centre, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't