Structure of activated transcription complex Pol II–DSIF–PAF–SPT6
Open accessAbstract
Gene regulation involves activation of RNA polymerase II (Pol II) that is paused and bound by the protein complexes DRB sensitivity-inducing factor (DSIF) and negative elongation factor (NELF). Here we show that formation of an activated Pol II elongation complex in vitro requires the kinase function of the positive transcription elongation factor b (P-TEFb) and the elongation factors PAF1 complex (PAF) and SPT6. The cryo-EM structure of an activated elongation complex of Sus scrofa Pol II and Homo sapiens DSIF, PAF and SPT6 was determined at 3.1 Å resolution and compared to the structure of the paused elongation complex formed by Pol II, DSIF and NELF. PAF displaces NELF from the Pol II funnel for pause release. P-TEFb phosphorylates the Pol II linker to the C-terminal domain. SPT6 binds to the phosphorylated C-terminal-domain linker and opens the RNA clamp formed by DSIF. These results provide the molecular basis for Pol II pause release and elongation activation.
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Spt6 binds to the phosphorylated RNA Pol II CTD and facilitates RNA Pol II promoter-proximal pause release.
“Spt6 binds to the phosphorylated RNA Pol II CTD and facilitates RNA Pol II promoter‐proximal pause release (Vos et al, 2018a).”
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- Authors
- Vos, S. M., Farnung, L., Boehning, M., Wigge, C., Linden, A., Urlaub, H., & Cramer, P.
- Affiliations
- Max Planck Institute for Biophysical Chemistry (DE)
- Universitätsmedizin Göttingen (DE)
- Corresponding author
- Cramer, Patrick
- Venue
- Nature
- Published
- 2018-08-22
- Volume
- 560
- Issue
- 7720
- Pages
- 607-612
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W2888537731
- Cited by
- 432
- References
- 5
- Citations by year
- 2026: 49 · 2025: 47 · 2024: 77 · 2023: 41 · 2022: 57 · 2021: 58 · 2020: 41 · 2019: 54 · 2018: 8
- FWCI
- 14.15
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- DORA PSI (Paul Scherrer Institute) (submittedVersion)
- Max Planck Digital Library (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
- Keywords
- RNA polymerase II, transcription elongation, DSIF, NELF, P-TEFb, Paf1 complex, Spt6, C-terminal domain phosphorylation, transcriptional pause, cryo-EM structure, Sus scrofa, human
- MeSH terms
- Animals, DNA, Humans, Models, Molecular, Nuclear Proteins, Phosphoproteins, RNA, RNA Polymerase II, Transcription Factors, Cryoelectron Microscopy, Sus scrofa, Transcriptional Elongation Factors, Positive Transcriptional Elongation Factor B, Transcription Elongation, Genetic
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