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Shah, N. ; Maqbool, M.A.* ; Yahia, Y.* ; El Aabidine, A.Z.* ; Esnault, C.* ; Forné, I.* ; Decker, T.-M. ; Martin, D.* ; Schüller, R. ; Krebs, S.* ; Blum, H.* ; Imhof, A.* ; Eick, D. ; Andrau, J.C.*

Tyrosine-1 of RNA polymerase II CTD controls global termination of gene transcription in mammals.

Mol. Cell 69, 48-61.e6 (2018)

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The carboxy-terminal domain (CTD) of RNA polymerase (Pol) II is composed of a repetition of YSPTSPS heptads and functions as a loading platform for protein complexes that regulate transcription, splicing, and maturation of RNAs. Here, we studied mammalian CTD mutants to analyze the function of tyrosine1 residues in the transcription cycle. Mutation of 3/4 of the tyrosine residues (YFFF mutant) resulted in a massive read-through transcription phenotype in the antisense direction of promoters as well as in the 3' direction several hundred kilobases downstream of genes. The YFFF mutant shows reduced Pol II at promoter-proximal pause sites, a loss of interaction with the Mediator and Integrator complexes, and impaired recruitment of these complexes to chromatin. Consistent with these observations, Pol II loading at enhancers and maturation of snRNAs are altered in the YFFF context genome-wide. We conclude that tyrosine1 residues of the CTD control termination of transcription by Pol II.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords Ctd ; Rna Polymerase Ii ; Tyrosine1 ; Divergent Transcription ; Promoter-proximal Pausing ; Read-through Transcription ; Transcription Termination; Promoter Directionality; Multiprotein Mediator; Kinetic Competition; Factor Recruitment; Mass-spectrometry; Domain; Elongation; Subunit; Polyadenylation; Integrator

ISSN (print) / ISBN 1097-2765

e-ISSN 1097-4164

Journal Molecular Cell

Quellenangaben Volume: 69, Issue: 1, Pages: 48-61.e6

Publisher Elsevier

Publishing Place Cambridge

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Institute of Functional Epigenetics (IFE)