Regulation of RNA polymerase II processivity by Spt5 is restricted to a narrow window during elongation
نویسندگان
چکیده
منابع مشابه
DSIF, a novel transcription elongation factor that regulates RNA polymerase II processivity, is composed of human Spt4 and Spt5 homologs.
We report the identification of a transcription elongation factor from HeLa cell nuclear extracts that causes pausing of RNA polymerase II (Pol II) in conjunction with the transcription inhibitor 5,6-dichloro-1-beta-D-ribofuranosylbenzimidazole (DRB). This factor, termed DRB sensitivity-inducing factor (DSIF), is also required for transcription inhibition by H8. DSIF has been purified and is co...
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Spt5 is a transcription factor conserved in all three domains of life. Spt5 homologues from bacteria and archaea bind the largest subunit of their respective RNA polymerases. Here we demonstrate that Spt5 directly associates with RNA polymerase (Pol) I and RNA Pol II in yeast through its central region containing conserved NusG N-terminal homology and KOW domains. Deletion analysis of SPT5 supp...
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Regulation of RNA polymerase II (RNAPII) during transcription is essential for controlling gene expression. Here we report that the transcriptional activity of RNAPII at the Balbiani ring 2.1 gene could be halted during stable elongation in salivary gland cells of Chironomus tentans larvae for extended time periods in a regulated manner. The transcription halt was triggered by heat shock and af...
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ژورنال
عنوان ژورنال: The EMBO Journal
سال: 2018
ISSN: 0261-4189,1460-2075
DOI: 10.15252/embj.201797965