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- W3155227238 abstract "Abstract Human bromodomain-containing BET family members are promising targets for therapy of cancer and immunoinflammatory diseases, but their mechanisms of action and functional redundancies are poorly understood. Bdf1/2, yeast homologues of the human BET factors, were previously proposed to target transcription factor TFIID to acetylated histone H4, analogous to bromodomains that are present within the largest subunit of metazoan TFIID. We investigated the genome-wide roles of Bdf1/2 and found that their important contributions to transcription extend beyond TFIID function, as transcription of many genes is more sensitive to Bdf1/2 than to TFIID depletion. Bdf1/2 co-occupy the majority of yeast promoters and affect preinitiation complex formation through recruitment of TFIID, Mediator and basal transcription factors to chromatin. Surprisingly, we discovered that hypersensitivity of genes to Bdf1/2 depletion results from combined defects in transcription initiation and processive elongation, a striking functional similarity to human BET proteins, most notably Brd4. Our results establish Bdf1/2 as critical for yeast transcription and provide important mechanistic insights into the function of BET proteins in all eukaryotes." @default.
- W3155227238 created "2021-04-26" @default.
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- W3155227238 date "2021-04-20" @default.
- W3155227238 modified "2023-10-02" @default.
- W3155227238 title "BET family members Bdf1/2 modulate global transcription initiation and elongation in Saccharomyces cerevisiae" @default.
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- W3155227238 doi "https://doi.org/10.1101/2021.04.20.440672" @default.
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