+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-23789 | |||||||||
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Title | Composite structure of EC+EC | |||||||||
Map data | Composite map of EC EC with sharpening by post processed ion Relion | |||||||||
Sample |
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Keywords | pol II / TRANSCRIPTION | |||||||||
Function / homology | Function and homology information : / : / TFIIF-class transcription factor complex binding / transcriptional start site selection at RNA polymerase II promoter / transcription factor TFIIF complex / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex ...: / : / TFIIF-class transcription factor complex binding / transcriptional start site selection at RNA polymerase II promoter / transcription factor TFIIF complex / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / RNA polymerase II transcribes snRNA genes / TP53 Regulates Transcription of DNA Repair Genes / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA polymerase II general transcription initiation factor activity / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / termination of RNA polymerase III transcription / Formation of TC-NER Pre-Incision Complex / transcription initiation at RNA polymerase III promoter / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / termination of RNA polymerase I transcription / RNA polymerase III activity / RNA Polymerase I Promoter Escape / protein phosphatase activator activity / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription by RNA polymerase I / transcription initiation at RNA polymerase I promoter / Estrogen-dependent gene expression / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / transcription by RNA polymerase III / RNA polymerase II activity / Dual incision in TC-NER / transcription elongation by RNA polymerase I / transcription-coupled nucleotide-excision repair / tRNA transcription by RNA polymerase III / RNA polymerase I complex / RNA polymerase I activity / RNA polymerase III complex / positive regulation of translational initiation / RNA polymerase II, core complex / RNA polymerase II preinitiation complex assembly / translation initiation factor binding / transcription initiation at RNA polymerase II promoter / positive regulation of transcription elongation by RNA polymerase II / transcription elongation by RNA polymerase II / P-body / ribonucleoside binding / DNA-directed 5'-3' RNA polymerase activity / DNA-directed RNA polymerase / ribosome biogenesis / single-stranded DNA binding / transcription by RNA polymerase II / nucleic acid binding / single-stranded RNA binding / protein dimerization activity / nucleotide binding / regulation of DNA-templated transcription / nucleolus / DNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.54 Å | |||||||||
Authors | Yang C / Murakami K | |||||||||
Funding support | 1 items
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Citation | Journal: Mol Cell / Year: 2022 Title: Structural visualization of de novo transcription initiation by Saccharomyces cerevisiae RNA polymerase II. Authors: Chun Yang / Rina Fujiwara / Hee Jong Kim / Pratik Basnet / Yunye Zhu / Jose J Gorbea Colón / Stefan Steimle / Benjamin A Garcia / Craig D Kaplan / Kenji Murakami / Abstract: Previous structural studies of the initiation-elongation transition of RNA polymerase II (pol II) transcription have relied on the use of synthetic oligonucleotides, often artificially discontinuous ...Previous structural studies of the initiation-elongation transition of RNA polymerase II (pol II) transcription have relied on the use of synthetic oligonucleotides, often artificially discontinuous to capture pol II in the initiating state. Here, we report multiple structures of initiation complexes converted de novo from a 33-subunit yeast pre-initiation complex (PIC) through catalytic activities and subsequently stalled at different template positions. We determine that PICs in the initially transcribing complex (ITC) can synthesize a transcript of ∼26 nucleotides before transitioning to an elongation complex (EC) as determined by the loss of general transcription factors (GTFs). Unexpectedly, transition to an EC was greatly accelerated when an ITC encountered a downstream EC stalled at promoter proximal regions and resulted in a collided head-to-end dimeric EC complex. Our structural analysis reveals a dynamic state of TFIIH, the largest of GTFs, in PIC/ITC with distinct functional consequences at multiple steps on the pathway to elongation. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_23789.map.gz | 64.1 MB | EMDB map data format | |
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Header (meta data) | emd-23789-v30.xml emd-23789.xml | 35.7 KB 35.7 KB | Display Display | EMDB header |
Images | emd_23789.png | 45.2 KB | ||
Filedesc metadata | emd-23789.cif.gz | 10.5 KB | ||
Others | emd_23789_additional_1.map.gz | 45.4 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-23789 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-23789 | HTTPS FTP |
-Validation report
Summary document | emd_23789_validation.pdf.gz | 479.4 KB | Display | EMDB validaton report |
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Full document | emd_23789_full_validation.pdf.gz | 478.9 KB | Display | |
Data in XML | emd_23789_validation.xml.gz | 6.6 KB | Display | |
Data in CIF | emd_23789_validation.cif.gz | 7.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-23789 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-23789 | HTTPS FTP |
-Related structure data
Related structure data | 7meiMC 7mk9C 7mkaC 7ml0C 7ml1C 7ml2C 7ml3C 7ml4C M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10865 (Title: Structural visualization of de novo initiation of RNA polymerase II transcription Data size: 14.3 TB Data #1: raw micrographs for PIC + ITC maps [micrographs - multiframe] Data #2: raw micrographs for EC+EC map [micrographs - multiframe]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_23789.map.gz / Format: CCP4 / Size: 149.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Composite map of EC EC with sharpening by post processed ion Relion | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Composite map of EC EC without sharpening
File | emd_23789_additional_1.map | ||||||||||||
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Annotation | Composite map of EC EC without sharpening | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Head-to-end Colliding RNAPII Elongation
+Supramolecule #1: Head-to-end Colliding RNAPII Elongation
+Macromolecule #1: DNA (74-MER)
+Macromolecule #2: DNA (74-MER)
+Macromolecule #3: DNA-directed RNA polymerase subunit
+Macromolecule #4: DNA-directed RNA polymerase subunit beta
+Macromolecule #5: DNA-directed RNA polymerase II subunit RPB3
+Macromolecule #6: DNA-directed RNA polymerase II subunit RPB4
+Macromolecule #7: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #8: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+Macromolecule #9: DNA-directed RNA polymerase II subunit RPB7
+Macromolecule #10: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #11: DNA-directed RNA polymerase II subunit RPB9
+Macromolecule #12: DNA-directed RNA polymerases II subunit RPABC5
+Macromolecule #13: DNA-directed RNA polymerase II subunit RPB11
+Macromolecule #14: DNA-directed RNA polymerases II subunit RPABC4
+Macromolecule #17: Transcription initiation factor IIF subunit alpha
+Macromolecule #18: Transcription initiation factor IIF subunit beta
+Macromolecule #15: RNA (5'-R(P*AP*AP*CP*UP*AP*GP*UP*UP*AP*AP*GP*AP*GP*GP*UP*U)-3')
+Macromolecule #16: RNA (5'-R(P*UP*CP*GP*AP*GP*AP*GP*GP*AP*UP*CP*CP*CP*AP*A)-3')
+Macromolecule #19: ZINC ION
+Macromolecule #20: MAGNESIUM ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 1.0 mg/mL |
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Buffer | pH: 7.6 / Details: 20 mM HEPES PH 7.6 50 mM KoAc 5 mM DTT 2 mM MgoAc |
Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 |
Vitrification | Cryogen name: ETHANE / Instrument: LEICA EM CPC |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 1.25 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.75 µm / Nominal defocus min: 0.75 µm / Nominal magnification: 81000 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Initial model |
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Refinement | Space: REAL / Protocol: RIGID BODY FIT | ||||||||
Output model | PDB-7mei: |