| Literature DB >> 16264190 |
Philippe Prochasson1, Laurence Florens, Selene K Swanson, Michael P Washburn, Jerry L Workman.
Abstract
The histone regulatory (HIR) and histone promoter control (HPC) repressor proteins regulate three of the four histone gene loci during the Saccharomyces cerevisiae cell cycle. Here, we demonstrate that Hir1, Hir2, Hir3, and Hpc2 proteins form a stable HIR repressor complex. The HIR complex promotes histone deposition onto DNA in vitro and constitutes a novel nucleosome assembly complex. The HIR complex stably binds to DNA and nucleosomes. Furthermore, HIR complex binding to nucleosomes forms a distinct protein/DNA complex resistant to remodeling by SWI/SNF. Thus, the HIR complex is a novel nucleosome assembly complex which functions with SWI/SNF to regulate transcription.Entities:
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Year: 2005 PMID: 16264190 PMCID: PMC1276727 DOI: 10.1101/gad.1341105
Source DB: PubMed Journal: Genes Dev ISSN: 0890-9369 Impact factor: 11.361