- EMDB-10480: Structure of complete, activated transcription complex Pol II-DSI... -
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Basic information
Entry
Database: EMDB / ID: EMD-10480
Title
Structure of complete, activated transcription complex Pol II-DSIF-PAF-SPT6 uncovers allosteric elongation activation by RTF1 (Map 1)
Map data
B factor of -115 applied
Sample
Complex: Complete EC*
Complex: Pig DNA/RNA polymerase subunits
Protein or peptide: x 12 types
Complex: Human transcription factors and associated proteins
Protein or peptide: x 7 types
Complex: DNA/RNA
DNA: x 2 types
RNA: x 1 types
Complex: Transcription elongation factor SPT4 and SPT5
Protein or peptide: x 2 types
Ligand: x 2 types
Function / homology
Function and homology information
blastocyst growth / inner cell mass cell differentiation / Ski complex / positive regulation of mRNA 3'-end processing / mRNA decay by 3' to 5' exoribonuclease / RNA polymerase II C-terminal domain phosphoserine binding / negative regulation of DNA-templated transcription, elongation / Cdc73/Paf1 complex / nuclear-transcribed mRNA catabolic process, 3'-5' exonucleolytic nonsense-mediated decay / regulation of isotype switching ...blastocyst growth / inner cell mass cell differentiation / Ski complex / positive regulation of mRNA 3'-end processing / mRNA decay by 3' to 5' exoribonuclease / RNA polymerase II C-terminal domain phosphoserine binding / negative regulation of DNA-templated transcription, elongation / Cdc73/Paf1 complex / nuclear-transcribed mRNA catabolic process, 3'-5' exonucleolytic nonsense-mediated decay / regulation of isotype switching / regulation of muscle cell differentiation / endodermal cell fate commitment / regulation of mRNA export from nucleus / negative regulation of myeloid cell differentiation / blastocyst hatching / : / positive regulation of cell cycle G1/S phase transition / DSIF complex / trophectodermal cell differentiation / regulation of mRNA processing / nucleosome organization / 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 / 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 - Major Pathway / 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 / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / blastocyst formation / mRNA 3'-end processing / positive regulation of DNA-templated transcription, elongation / Abortive elongation of HIV-1 transcript in the absence of Tat / transcription elongation-coupled chromatin remodeling / negative regulation of G1/S transition of mitotic cell cycle / organelle membrane / stem cell population maintenance / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / interleukin-6-mediated signaling pathway / negative regulation of gene expression, epigenetic / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / RNA polymerase III activity / negative regulation of transcription elongation by RNA polymerase II / RNA polymerase II complex binding / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / transcription by RNA polymerase I / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / cell surface receptor signaling pathway via JAK-STAT / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / positive regulation of macroautophagy / RNA polymerase II transcribes snRNA genes / RNA polymerase II activity / protein localization to nucleus / positive regulation of Wnt signaling pathway / transcription elongation by RNA polymerase I / Tat-mediated elongation of the HIV-1 transcript / mRNA transport / tRNA transcription by RNA polymerase III / RNA polymerase I activity / Formation of HIV-1 elongation complex containing HIV-1 Tat / RNA polymerase I complex / nucleosome binding / RNA polymerase III complex / positive regulation of translational initiation / Formation of HIV elongation complex in the absence of HIV Tat / transcription-coupled nucleotide-excision repair / RNA polymerase II, core complex / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / negative regulation of fibroblast proliferation / translation initiation factor binding / RNA Polymerase II Pre-transcription Events / rescue of stalled ribosome Similarity search - Function
RNA polymerase II subunit D / Uncharacterized protein / : / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerase II subunit RPB7 ...RNA polymerase II subunit D / Uncharacterized protein / : / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerase II subunit RPB7 / RNA polymerase II, I and III subunit K / DNA-directed RNA polymerase II subunit E / Transcription elongation factor SPT5 / DNA-directed RNA polymerase II subunit RPB9 / Transcription elongation factor SPT4 / Parafibromin / RNA polymerase-associated protein CTR9 homolog / Transcription elongation factor SPT6 / RNA polymerase II-associated factor 1 homolog / RNA polymerase-associated protein LEO1 / RNA polymerase-associated protein RTF1 homolog / Superkiller complex protein 8 Similarity search - Component
Biological species
Sus scrofa (pig) / Homo sapiens (human) / synthetic construct (others) / Pig (pig)
Method
single particle reconstruction / cryo EM / Resolution: 3.1 Å
Journal: Nat Struct Mol Biol / Year: 2020 Title: Structure of complete Pol II-DSIF-PAF-SPT6 transcription complex reveals RTF1 allosteric activation. Authors: Seychelle M Vos / Lucas Farnung / Andreas Linden / Henning Urlaub / Patrick Cramer / Abstract: Transcription by RNA polymerase II (Pol II) is carried out by an elongation complex. We previously reported an activated porcine Pol II elongation complex, EC*, encompassing the human elongation ...Transcription by RNA polymerase II (Pol II) is carried out by an elongation complex. We previously reported an activated porcine Pol II elongation complex, EC*, encompassing the human elongation factors DSIF, PAF1 complex (PAF) and SPT6. Here we report the cryo-EM structure of the complete EC* that contains RTF1, a dissociable PAF subunit critical for chromatin transcription. The RTF1 Plus3 domain associates with Pol II subunit RPB12 and the phosphorylated C-terminal region of DSIF subunit SPT5. RTF1 also forms four α-helices that extend from the Plus3 domain along the Pol II protrusion and RPB10 to the polymerase funnel. The C-terminal 'fastener' helix retains PAF and is followed by a 'latch' that reaches the end of the bridge helix, a flexible element of the Pol II active site. RTF1 strongly stimulates Pol II elongation, and this requires the latch, possibly suggesting that RTF1 activates transcription allosterically by influencing Pol II translocation.
History
Deposition
Nov 11, 2019
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Header (metadata) release
Jul 22, 2020
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Map release
Jul 22, 2020
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Update
Dec 2, 2020
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Current status
Dec 2, 2020
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV Details: 2 microliters applied to both sides of grid. Sample incubated on grid for 10s prior to blotting. Blotting for 8.5s..
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Electron microscopy
Microscope
FEI TITAN KRIOS
Specialist optics
Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recording
Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 3 / Number real images: 13679 / Average exposure time: 10.0 sec. / Average electron dose: 40.0 e/Å2
Electron beam
Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
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