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Nat Struct Mol Biol. 2008 Aug;15(8):873-80. doi: 10.1038/nsmb.1452. Epub 2008 Jul 11.

Fission yeast SWI/SNF and RSC complexes show compositional and functional differences from budding yeast.

Author information

1
Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA.

Abstract

SWI/SNF chromatin-remodeling complexes have crucial roles in transcription and other chromatin-related processes. The analysis of the two members of this class in Saccharomyces cerevisiae, SWI/SNF and RSC, has heavily contributed to our understanding of these complexes. To understand the in vivo functions of SWI/SNF and RSC in an evolutionarily distant organism, we have characterized these complexes in Schizosaccharomyces pombe. Although core components are conserved between the two yeasts, the compositions of S. pombe SWI/SNF and RSC differ from their S. cerevisiae counterparts and in some ways are more similar to metazoan complexes. Furthermore, several of the conserved proteins, including actin-like proteins, are markedly different between the two yeasts with respect to their requirement for viability. Finally, phenotypic and microarray analyses identified widespread requirements for SWI/SNF and RSC on transcription including strong evidence that SWI/SNF directly represses iron-transport genes.

PMID:
18622392
PMCID:
PMC2559950
DOI:
10.1038/nsmb.1452
[Indexed for MEDLINE]
Free PMC Article

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