Abstract
We report that in vivo increased acetylation of the repressed Saccharomyces cerevisiae ADH2 promoter chromatin, as obtained by disrupting the genes for the two deacetylases HDA1 and RPD3, destabilizes the structure of the TATA box-containing nucleosome. This acetylation-dependent chromatin remodeling is not sufficient to allow the binding of the TATA box-binding protein, but facilitates the recruitment of the transcriptional activator Adr1 and induces faster kinetics of mRNA accumulation when the cells are shifted to derepressing conditions.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Acetylation
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Acetyltransferases / deficiency
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Acetyltransferases / genetics
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Acetyltransferases / metabolism
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Alcohol Dehydrogenase / genetics*
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Chromatin / chemistry*
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Chromatin / genetics
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Chromatin / metabolism
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DNA-Binding Proteins / metabolism*
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Fungal Proteins / genetics
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Fungal Proteins / metabolism
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Gene Expression Regulation, Fungal*
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Histone Acetyltransferases
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Histone Deacetylases / deficiency
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Histone Deacetylases / genetics
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Histone Deacetylases / metabolism
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Histones / metabolism*
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Models, Genetic
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Nucleosomes / chemistry*
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Nucleosomes / metabolism
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Nucleosomes / ultrastructure
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Promoter Regions, Genetic / genetics*
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Protein Kinases / deficiency
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Protein Kinases / genetics
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Protein Kinases / metabolism
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Protein Processing, Post-Translational / genetics*
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RNA, Messenger / biosynthesis
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Repressor Proteins*
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Saccharomyces cerevisiae / genetics*
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Saccharomyces cerevisiae / metabolism
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Saccharomyces cerevisiae Proteins / genetics
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Saccharomyces cerevisiae Proteins / metabolism*
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TATA Box / genetics*
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TATA-Box Binding Protein
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Transcription Factors / metabolism*
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Transcriptional Activation*
Substances
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ADR1 protein, S cerevisiae
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Chromatin
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DNA-Binding Proteins
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Fungal Proteins
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Histones
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Nucleosomes
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RNA, Messenger
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Repressor Proteins
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Saccharomyces cerevisiae Proteins
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TATA-Box Binding Protein
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Transcription Factors
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Alcohol Dehydrogenase
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Acetyltransferases
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Histone Acetyltransferases
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Protein Kinases
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HDA1 protein, S cerevisiae
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RPD3 protein, S cerevisiae
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Histone Deacetylases