title: Global role for chromatin remodeling enzymes in mitotic gene expression.
abstract: Regulation of eukaryotic gene expression requires ATP-dependent chromatin remodeling enzymes, such as SWI/SNF, and histone acetyltransferases, such as Gcn5p. Here we show that SWI/SNF remodeling controls recruitment of Gcn5p HAT activity to many genes in late mitosis and that these chromatin remodeling enzymes play a role in regulating mitotic exit. In contrast, interphase expression of GAL1, HIS3, PHO5, and PHO8 is accompanied by SWI/SNF-independent recruitment of Gcn5p HAT activity. Surprisingly, prearresting cells in late mitosis imposes a requirement for SWI/SNF in recruiting Gcn5p HAT activity to the GAL1 promoter, and GAL1 expression also becomes dependent on both chromatin remodeling enzymes. We propose that SWI/SNF and Gcn5p are globally required for mitotic gene expression due to the condensed state of mitotic chromatin.
authors.affiliation: Department of Biochemistry and Molecular Biology, University of Massachusetts Medical School, Worcester 01605, USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Krebs
authors.forename: C J
authors.initials: CJ
authors.lastname: Fry
authors.forename: M L
authors.initials: ML
authors.lastname: Samuels
authors.forename: C L
authors.initials: CL
authors.lastname: Peterson
mesh_terms: D000107:Acetylation; D000123:Acetyltransferases / Q000235:genetics / Q000378:metabolism; D000705:Anaphase / Q000187:drug effects; D018797:Cell Cycle Proteins; D002843:Chromatin / Q000737:chemistry / Q000201:enzymology / Q000235:genetics / Q000378:metabolism*; D004268:DNA-Binding Proteins; D005656:Fungal Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D017353:Gene Deletion; D015966:Gene Expression Regulation, Fungal; D005800:Genes, Fungal / Q000235:genetics; D051548:Histone Acetyltransferases; D006657:Histones / Q000737:chemistry / Q000378:metabolism; D007399:Interphase / Q000187:drug effects; D008938:Mitosis / Q000187:drug effects / Q000235:genetics; D015739:Nocodazole / Q000494:pharmacology; D009690:Nucleic Acid Conformation; D010641:Phenotype; D011401:Promoter Regions, Genetic / Q000235:genetics; D011494:Protein Kinases / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D017346:Protein Serine-Threonine Kinases / Q000235:genetics / Q000378:metabolism*; D017434:Protein Structure, Tertiary; D012441:Saccharomyces cerevisiae / Q000166:cytology / Q000201:enzymology / Q000235:genetics / Q000378:metabolism; D029701:Saccharomyces cerevisiae Proteins; D013997:Time Factors; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics / Q000378:metabolism
chemical_list: D018797:Cell Cycle Proteins; D002843:Chromatin; D004268:DNA-Binding Proteins; D005656:Fungal Proteins; D006657:Histones; C080218:SWI5 protein, S cerevisiae; D029701:Saccharomyces cerevisiae Proteins; D014157:Transcription Factors; D000123:Acetyltransferases; D051548:Histone Acetyltransferases; D011494:Protein Kinases; C071570:SNF1-related protein kinases; D017346:Protein Serine-Threonine Kinases; D015739:Nocodazole