Molecular evidence indicating that the yeast PAF complex is required for transcription elongation
نویسندگان
چکیده
منابع مشابه
Molecular evidence indicating that the yeast PAF complex is required for transcription elongation.
PAF is a five-subunit protein complex composed of Paf1, Cdc73, Leo1, Rtf1 and Ctr9, which was purified from yeast in association with RNA polymerase II and which is believed to function in transcription elongation. However, no direct proof exists for this yet. To assay whether PAF is required in elongation, we determined the in vitro transcription-elongation efficiencies of mutant cell extracts...
متن کاملMolecular evidence that the eukaryotic THO/TREX complex is required for efficient transcription elongation.
THO/TREX is a conserved eukaryotic complex formed by the core THO complex plus proteins involved in mRNA metabolism and export such as Sub2 and Yra1. Mutations in any of the THO/TREX structural genes cause pleiotropic phenotypes such as transcription impairment, increased transcription-associated recombination, and mRNA export defects. To assay the relevance of THO/TREX complex in transcription...
متن کاملThe PAF Complex and Prf1/Rtf1 Delineate Distinct Cdk9-Dependent Pathways Regulating Transcription Elongation in Fission Yeast
Cyclin-dependent kinase 9 (Cdk9) promotes elongation by RNA polymerase II (RNAPII), mRNA processing, and co-transcriptional histone modification. Cdk9 phosphorylates multiple targets, including the conserved RNAPII elongation factor Spt5 and RNAPII itself, but how these different modifications mediate Cdk9 functions is not known. Here we describe two Cdk9-dependent pathways in the fission yeast...
متن کاملThe Paf1 complex is required for efficient transcription elongation by RNA polymerase I.
Regulation of RNA polymerase I (Pol I) transcription is critical for controlling ribosome synthesis. Most previous investigations into Pol I transcription regulation have focused on transcription initiation. To date, the factors involved in the control of Pol I transcription elongation are poorly understood. The Paf1 complex (Paf1C) is a well-defined factor that influences polymerase II (Pol II...
متن کاملThe Prp19 complex is a novel transcription elongation factor required for TREX occupancy at transcribed genes.
Different steps in gene expression are intimately linked. In Saccharomyces cerevisiae, the conserved TREX complex couples transcription to nuclear messenger RNA (mRNA) export. However, it is unknown how TREX is recruited to actively transcribed genes. Here, we show that the Prp19 splicing complex functions in transcription elongation. The Prp19 complex is recruited to transcribed genes, interac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EMBO reports
سال: 2004
ISSN: 1469-221X,1469-3178
DOI: 10.1038/sj.embor.7400045