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  • 1
    Publication Date: 2015-12-15
    Description: Release of promoter-proximal paused RNA polymerase II (Pol II) during early elongation is a critical step in transcriptional regulation in metazoan cells. Paused Pol II release is thought to require the kinase activity of cyclin-dependent kinase 9 (CDK9) for the phosphorylation of DRB sensitivity-inducing factor, negative elongation factor, and C-terminal domain (CTD) serine-2 of Pol II. We found that Pol II-associated factor 1 (PAF1) is a critical regulator of paused Pol II release, that positive transcription elongation factor b (P-TEFb) directly regulates the initial recruitment of PAF1 complex (PAF1C) to genes, and that the subsequent recruitment of CDK12 is dependent on PAF1C. These findings reveal cooperativity among P-TEFb, PAF1C, and CDK12 in pausing release and Pol II CTD phosphorylation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yu, Ming -- Yang, Wenjing -- Ni, Ting -- Tang, Zhanyun -- Nakadai, Tomoyoshi -- Zhu, Jun -- Roeder, Robert G -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2015 Dec 11;350(6266):1383-6. doi: 10.1126/science.aad2338.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Biochemistry and Molecular Biology, The Rockefeller University, New York, NY 10065, USA. ; Systems Biology Center, National Heart, Lung, and Blood Institute, Bethesda, MD 20892, USA. ; State Key Laboratory of Genetic Engineering and Ministry of Education Key Laboratory of Contemporary Anthropology, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai 200438, P.R. China. ; Laboratory of Biochemistry and Molecular Biology, The Rockefeller University, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Line, Tumor ; Cyclin-Dependent Kinase 9/metabolism ; Cyclin-Dependent Kinases/metabolism ; *Gene Expression Regulation ; Humans ; Nuclear Proteins/genetics/*metabolism ; Phosphorylation ; Positive Transcriptional Elongation Factor B/metabolism ; Promoter Regions, Genetic ; Protein Structure, Tertiary ; RNA Polymerase II/chemistry/genetics/*metabolism ; *Transcription Elongation, Genetic ; Transcription Factors/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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