Document Detail


Transient inhibition of histone deacetylase activity overcomes silencing in the mating-type region in fission yeast.
MedLine Citation:
PMID:  10079326     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We have investigated the effects of inhibition of histone de-acetylase activity on silencing at the silent mating-type loci in fission yeast. Treatment of exponentially growing cells with the histone deacetylase inhibitor, trichostatin A (TSA), resulted in derepression of a marker gene inserted 150 bp distal from the silent mat3-M locus. The natural targets for the silencing mechanism in this region were only partially derepressed and the activation appeared to be asymmetric, i.e. the mat2-P cassette remained silent at concentrations that clearly partially derepressed the mat3-M cassette. We further noted that treatment of wild-type h90 cells resulted in the generation of altered sporulation phenotypes, indicating that the treatment affected the expression of mating-type genes and/or mating-type switching. The results are discussed in the light of recent accumulated data regarding the role of deacetylation for silencing in other species.
Authors:
T G Olsson; R A Silverstein; K Ekwall; P Sunnerhagen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Current genetics     Volume:  35     ISSN:  0172-8083     ISO Abbreviation:  Curr. Genet.     Publication Date:  1999 Mar 
Date Detail:
Created Date:  1999-06-16     Completed Date:  1999-06-16     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  8004904     Medline TA:  Curr Genet     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  82-7     Citation Subset:  IM    
Affiliation:
Department of Molecular Biology, Lundberg Laboratory, Göteborg University, P. O. Box 462, S-405 30 Göteborg, Sweden. Tim.Olsson@molbiol.gu.se
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MeSH Terms
Descriptor/Qualifier:
Enzyme Inhibitors / pharmacology
Fungal Proteins / genetics
Gene Expression Regulation
Gene Expression Regulation, Fungal / drug effects
Genes, Fungal / genetics*
Genes, Mating Type, Fungal*
Histone Deacetylase Inhibitors*
Histone Deacetylases / metabolism
Hydroxamic Acids / pharmacology
Recombinant Fusion Proteins / genetics
Schizosaccharomyces / genetics*
Chemical
Reg. No./Substance:
0/Enzyme Inhibitors; 0/Fungal Proteins; 0/Histone Deacetylase Inhibitors; 0/Hydroxamic Acids; 0/Recombinant Fusion Proteins; 58880-19-6/trichostatin A; EC 3.5.1.98/Histone Deacetylases

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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