The CTD Is Not Essential for the Post-Initiation Control of RNA Polymerase II Activity

Overview

Journal J Mol Biol

Publisher Elsevier

Specialties Microbiology
Molecular Biology

Date 2020 Jul 25

PMID 32707132

Citations 5

Authors

Alan Gerber

Robert G Roeder

Affiliations

Soon will be listed here.

Abstract

Interest in the C-terminal domain (CTD) of the RPB1 subunit of the RNA polymerase II (Pol II) has been revived in recent years, owing to its numerous posttranslational modifications and its "phase-separation" properties. A large number of studies have shown that the status of CTD modifications is associated with the activity of Pol II during the transcription cycle. However, because this domain is essential in living cells, the functional requirement of the full CTD for the control of Pol II activity at endogenous mammalian genes has never been addressed directly in living cells. Using an inducible Pol II-degradation system that we previously established, we investigated here the roles of the CTD in the post-initiation control of Pol II. The selective ablation of the RPB1 CTD, post-initiation, at promoter-proximal pause-sites revealed that this domain, and by extension the CTD heptads and their modifications, is functionally neither absolutely required to maintain pausing in the absence of CDK9 activity nor essential for the release of Pol II into productive elongation.

Citing Articles

Defining gene ends: RNA polymerase II CTD threonine 4 phosphorylation marks transcription termination regions genome-wide.

Kopczynska M, Saha U, Romanenko A, Nojima T, Gdula M, Kamieniarz-Gdula K Nucleic Acids Res. 2024; 53(2.

PMID: 39718990 PMC: 11754735. DOI: 10.1093/nar/gkae1240.

RNA polymerase II CTD is dispensable for transcription and required for termination in human cells.

Yahia Y, Pigeot A, El Aabidine A, Shah N, Karasu N, Forne I EMBO Rep. 2023; 24(9):e56150.

PMID: 37424514 PMC: 10481650. DOI: 10.15252/embr.202256150.

Aclarubicin stimulates RNA polymerase II elongation at closely spaced divergent promoters.

Wooten M, Takushi B, Ahmad K, Henikoff S Sci Adv. 2023; 9(24):eadg3257.

PMID: 37315134 PMC: 10266722. DOI: 10.1126/sciadv.adg3257.

Cross-regulome profiling of RNA polymerases highlights the regulatory role of polymerase III on mRNA transcription by maintaining local chromatin architecture.

Jiang Y, Huang J, Tian K, Yi X, Zheng H, Zhu Y Genome Biol. 2022; 23(1):246.

PMID: 36443871 PMC: 9703767. DOI: 10.1186/s13059-022-02812-w.

Regulation of Promoter Proximal Pausing of RNA Polymerase II in Metazoans.

Dollinger R, Gilmour D J Mol Biol. 2021; 433(14):166897.

PMID: 33640324 PMC: 8184617. DOI: 10.1016/j.jmb.2021.166897.

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