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Nucleic Acids Research
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Nucleic Acids Research
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Suppression of intragenic transcription requires the MOT1 and NC2 regulators of TATA-binding protein

Authors: Koster, Maria J. E.; Yildirim, Asli D.; Weil, P. Anthony; Holstege, Frank C. P.; Timmers, H. Th. Marc;

Suppression of intragenic transcription requires the MOT1 and NC2 regulators of TATA-binding protein

Abstract

Abstract Chromatin structure in transcribed regions poses a barrier for intragenic transcription. In a comprehensive study of the yeast chromatin remodelers and the Mot1p-NC2 regulators of TATA-binding protein (TBP), we detected synthetic genetic interactions indicative of suppression of intragenic transcription. Conditional depletion of Mot1p or NC2 in absence of the ISW1 remodeler, but not in the absence of other chromatin remodelers, activated the cryptic FLO8 promoter. Likewise, conditional depletion of Mot1p or NC2 in deletion backgrounds of the H3K36 methyltransferase Set2p or the Asf1p-Rtt106p histone H3-H4 chaperones, important factors involved in maintaining a repressive chromatin environment, resulted in increased intragenic FLO8 transcripts. Activity of the cryptic FLO8 promoter is associated with reduced H3 levels, increased TBP binding and tri-methylation of H3K4 and is independent of Spt-Ada-Gcn5-acetyltransferase function. These data reveal cooperation of negative regulation of TBP with specific chromatin regulators to inhibit intragenic transcription.

Keywords

Adenosine Triphosphatases, TATA-Binding Protein Associated Factors, Saccharomyces cerevisiae Proteins, Transcription, Genetic, Nuclear Proteins, Saccharomyces cerevisiae, Gene Regulation, Chromatin and Epigenetics, Phosphoproteins, TATA-Box Binding Protein, Chromatin, DNA-Binding Proteins, Repressor Proteins, Gene Expression Regulation, Fungal, Trans-Activators, Promoter Regions, Genetic, Alleles, Transcription Factors

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    19
    popularity
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    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
19
Top 10%
Average
Top 10%
Green
gold