endodermal cell fate commitment / Ski complex / regulation of isotype switching / RNA polymerase II C-terminal domain phosphoserine binding / mRNA decay by 3' to 5' exoribonuclease / positive regulation of mRNA 3'-end processing / Cdc73/Paf1 complex / nuclear-transcribed mRNA catabolic process, 3'-5' exonucleolytic nonsense-mediated decay / negative regulation of DNA-templated transcription, elongation / transcription pausing by RNA polymerase II ...endodermal cell fate commitment / Ski complex / regulation of isotype switching / RNA polymerase II C-terminal domain phosphoserine binding / mRNA decay by 3' to 5' exoribonuclease / positive regulation of mRNA 3'-end processing / Cdc73/Paf1 complex / nuclear-transcribed mRNA catabolic process, 3'-5' exonucleolytic nonsense-mediated decay / negative regulation of DNA-templated transcription, elongation / transcription pausing by RNA polymerase II / negative regulation of myeloid cell differentiation / regulation of muscle cell differentiation / positive regulation of cell cycle G1/S phase transition / DSIF complex / nuclear DNA-directed RNA polymerase complex / regulation of transcription elongation by RNA polymerase II / B-WICH complex positively regulates rRNA expression / RNA Polymerase I Transcription Initiation / RNA Polymerase I Promoter Escape / RNA Polymerase I Transcription Termination / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / nucleosome organization / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex / Transcriptional regulation by small RNAs / RNA Polymerase II Pre-transcription Events / TP53 Regulates Transcription of DNA Repair Genes / FGFR2 alternative splicing / RNA polymerase II transcribes snRNA genes / mRNA Capping / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Elongation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Pol II CTD phosphorylation and interaction with CE / Estrogen-dependent gene expression / mRNA Splicing - Major Pathway / mRNA Polyadenylation / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / positive regulation of DNA-templated transcription, elongation / mRNA 3'-end processing / transcription elongation factor activity / Abortive elongation of HIV-1 transcript in the absence of Tat / negative regulation of G1/S transition of mitotic cell cycle / transcription elongation-coupled chromatin remodeling / stem cell population maintenance / interleukin-6-mediated signaling pathway / transcription factor TFIID complex / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / positive regulation of macroautophagy / DNA-directed RNA polymerase complex / RNA polymerase II complex binding / RNA polymerase II transcribes snRNA genes / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / protein localization to nucleus / negative regulation of fibroblast proliferation / nuclear-transcribed mRNA catabolic process / Tat-mediated elongation of the HIV-1 transcript / positive regulation of Wnt signaling pathway / Formation of HIV-1 elongation complex containing HIV-1 Tat / Formation of HIV elongation complex in the absence of HIV Tat / cell surface receptor signaling pathway via JAK-STAT / Dengue virus activates/modulates innate and adaptive immune responses / termination of RNA polymerase III transcription / transcription initiation at RNA polymerase III promoter / RNA Polymerase II Transcription Elongation / RNA polymerase I complex / RNA polymerase III complex / Formation of RNA Pol II elongation complex / transcription elongation by RNA polymerase I / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / nucleosome binding / RNA Polymerase II Pre-transcription Events / SH2 domain binding / transcription elongation factor complex / rescue of stalled cytosolic ribosome / TP53 Regulates Transcription of DNA Repair Genes / CHD1 and CHD2 subfamily / positive regulation of transcription elongation by RNA polymerase II / DNA-templated transcription initiation / transcription initiation at RNA polymerase II promoter / protein destabilization / euchromatin / transcription elongation by RNA polymerase II Similarity search - Function
Journal: Science / Year: 2022 Title: Structural basis of nucleosome retention during transcription elongation. Authors: Martin Filipovski / Jelly H M Soffers / Seychelle M Vos / Lucas Farnung / Abstract: In eukaryotes, RNA polymerase (Pol) II transcribes chromatin and must move past nucleosomes, often resulting in nucleosome displacement. How Pol II unwraps the DNA from nucleosomes to allow ...In eukaryotes, RNA polymerase (Pol) II transcribes chromatin and must move past nucleosomes, often resulting in nucleosome displacement. How Pol II unwraps the DNA from nucleosomes to allow transcription and how DNA rewraps to retain nucleosomes has been unclear. Here, we report the 3.0-angstrom cryo-electron microscopy structure of a mammalian Pol II-DSIF-SPT6-PAF1c-TFIIS-nucleosome complex stalled 54 base pairs within the nucleosome. The structure provides a mechanistic basis for nucleosome retention during transcription elongation where upstream DNA emerging from the Pol II cleft has rewrapped the proximal side of the nucleosome. The structure uncovers a direct role for Pol II and transcription elongation factors in nucleosome retention and explains how nucleosomes are retained to prevent the disruption of chromatin structure across actively transcribed genes.
Model: Quantifoil R2/1 / Material: COPPER / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Details: 15 mA with 10 s hold time
Vitrification
Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
-
Electron microscopy
Microscope
FEI TITAN KRIOS
Specialist optics
Phase plate: VOLTA PHASE PLATE / Energy filter - Slit width: 20 eV
Image recording
Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 52.0 e/Å2
Electron beam
Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
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