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Yorodumi- EMDB-10020: RNA Polymerase I Open Complex conformation 2 focused refinement on Pol -
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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-10020 | |||||||||
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| Title | RNA Polymerase I Open Complex conformation 2 focused refinement on Pol | |||||||||
Map data | RNA Polymerase I Open Complex conformation 2 (OC2) focused refinement on Pol | |||||||||
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| Function / homology | Function and homology informationRNA polymerase I core binding / RNA polymerase I general transcription initiation factor activity / RNA polymerase I general transcription initiation factor binding / rDNA binding / RNA polymerase I preinitiation complex assembly / 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 ...RNA polymerase I core binding / RNA polymerase I general transcription initiation factor activity / RNA polymerase I general transcription initiation factor binding / rDNA binding / RNA polymerase I preinitiation complex assembly / 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 / termination of RNA polymerase III transcription / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / Formation of TC-NER Pre-Incision Complex / regulation of cell size / transcription initiation at RNA polymerase III promoter / RNA Polymerase I Promoter Escape / termination of RNA polymerase I transcription / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription initiation at RNA polymerase I promoter / nucleolar large rRNA transcription by RNA polymerase I / Estrogen-dependent gene expression / transcription by RNA polymerase III / Dual incision in TC-NER / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / promoter-specific chromatin binding / ribonucleoside binding / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / peroxisome / ribosome biogenesis / nucleic acid binding / RNA polymerase II-specific DNA-binding transcription factor binding / transcription by RNA polymerase II / protein dimerization activity / nucleolus / negative regulation of transcription by RNA polymerase II / mitochondrion / DNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.96 Å | |||||||||
Authors | Mueller CW / Sadian Y | |||||||||
| Funding support | 1 items
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Citation | Journal: Nat Commun / Year: 2019Title: Molecular insight into RNA polymerase I promoter recognition and promoter melting. Authors: Yashar Sadian / Florence Baudin / Lucas Tafur / Brice Murciano / Rene Wetzel / Felix Weis / Christoph W Müller / ![]() Abstract: RNA polymerase I (Pol I) assembles with core factor (CF) and Rrn3 on the rDNA core promoter for transcription initiation. Here, we report cryo-EM structures of closed, intermediate and open Pol I ...RNA polymerase I (Pol I) assembles with core factor (CF) and Rrn3 on the rDNA core promoter for transcription initiation. Here, we report cryo-EM structures of closed, intermediate and open Pol I initiation complexes from 2.7 to 3.7 Å resolution to visualize Pol I promoter melting and to structurally and biochemically characterize the recognition mechanism of Pol I promoter DNA. In the closed complex, double-stranded DNA runs outside the DNA-binding cleft. Rotation of CF and upstream DNA with respect to Pol I and Rrn3 results in the spontaneous loading and opening of the promoter followed by cleft closure and positioning of the Pol I A49 tandem winged helix domain (tWH) onto DNA. Conformational rearrangement of A49 tWH leads to a clash with Rrn3 to initiate complex disassembly and promoter escape. Comprehensive insight into the Pol I transcription initiation cycle allows comparisons with promoter opening by Pol II and Pol III. | |||||||||
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Structure visualization
| Movie |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_10020.map.gz | 7.1 MB | EMDB map data format | |
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| Header (meta data) | emd-10020-v30.xml emd-10020.xml | 15.2 KB 15.2 KB | Display Display | EMDB header |
| Images | emd_10020.png | 65.1 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-10020 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-10020 | HTTPS FTP |
-Validation report
| Summary document | emd_10020_validation.pdf.gz | 226 KB | Display | EMDB validaton report |
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| Full document | emd_10020_full_validation.pdf.gz | 225.2 KB | Display | |
| Data in XML | emd_10020_validation.xml.gz | 6.4 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10020 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-10020 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 4982C ![]() 4984C ![]() 4985C ![]() 4987C ![]() 6rqhC ![]() 6rqlC ![]() 6rqtC ![]() 6rrdC ![]() 6ruiC ![]() 6ruoC ![]() 6rweC C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_10020.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | RNA Polymerase I Open Complex conformation 2 (OC2) focused refinement on Pol | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.32 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : RNA Polymerase I Open Complex conformation 2 focused refinement on Pol
| Entire | Name: RNA Polymerase I Open Complex conformation 2 focused refinement on Pol |
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| Components |
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-Supramolecule #1: RNA Polymerase I Open Complex conformation 2 focused refinement on Pol
| Supramolecule | Name: RNA Polymerase I Open Complex conformation 2 focused refinement on Pol type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#20 |
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-Supramolecule #2: RNA Polymerase I
| Supramolecule | Name: RNA Polymerase I / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #3-#16 |
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| Source (natural) | Organism: ![]() |
-Supramolecule #3: DNA
| Supramolecule | Name: DNA / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #1-#2 |
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| Source (natural) | Organism: synthetic construct (others) |
| Recombinant expression | Organism: synthetic construct (others) |
-Supramolecule #4: transcription initiation factors
| Supramolecule | Name: transcription initiation factors / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #17-#20 |
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| Source (natural) | Organism: ![]() |
| Recombinant expression | Organism: ![]() |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 4 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 1.57175 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
| CTF correction | Software - Name: Gctf |
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| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.96 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 59963 |
| Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
| Final angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION |
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