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    SAGA, the multicomponent complex responsible for acetylation of histone N-terminal lysine residues, is involved in the transcription activation of a wide range of eukaryote genes. SAGA contains a protein module, DUB, which is responsible for histone deubiquitination. In this paper we show that the DUB module may be found within cells independently of SAGA. In the absence of" SAGA, the DUB module may be recruited to the promoters of Pol III-transcribed genes, but not to the Pol II-dependent promoters. The DUB module is required to recruit transcription factor Brfl, a subunit of the Pol III-recruiting TFIIIB complex, to the promoters of Pol III-dependent genes. The DUB-module interacts with Pol III in vivo. The DUB-module is essential for recruiting both TFIIIB complexes and PBP complexes to the promoters of Pol III-dependent genes.

    Citation

    J V Nikolenko, Y A Vdovina, E I Fefelova, A A Glukhova, E N Nabirochkina, D V Kopytova. The SAGA Deubiquitinilation (DUB) Module Participates in Pol III-Dependent Transcription]. Molekuliarnaia biologiia. 2021 May-Jun;55(3):500-509

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    PMID: 34097684

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