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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-4984 | |||||||||
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| Title | RNA Polymerase I Closed Conformation 2 (CC2) | |||||||||
Map data | RNA Polymerase I Closed Complex conformation 2 (CC2) | |||||||||
Sample |
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Keywords | RNA Polymerase I / Pre-initiation complex / PIC / Closed Complex / CC / Core Factor / CF / Rrn3 / TRANSCRIPTION | |||||||||
| Function / homology | Function and homology informationRNA polymerase I transcription regulatory region sequence-specific DNA binding / RNA polymerase I core factor 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 core promoter sequence-specific DNA binding / RNA polymerase I preinitiation complex assembly / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA ...RNA polymerase I transcription regulatory region sequence-specific DNA binding / RNA polymerase I core factor 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 core promoter sequence-specific DNA 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 / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription initiation at RNA polymerase I promoter / 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 / TBP-class protein binding / 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 | synthetic construct (others) / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.9 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 |
Movie viewer |
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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_4984.map.gz | 14.8 MB | EMDB map data format | |
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| Header (meta data) | emd-4984-v30.xml emd-4984.xml | 40.6 KB 40.6 KB | Display Display | EMDB header |
| Images | emd_4984.png | 99 KB | ||
| Filedesc metadata | emd-4984.cif.gz | 11.6 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-4984 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4984 | HTTPS FTP |
-Validation report
| Summary document | emd_4984_validation.pdf.gz | 189.6 KB | Display | EMDB validaton report |
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| Full document | emd_4984_full_validation.pdf.gz | 189.2 KB | Display | |
| Data in XML | emd_4984_validation.xml.gz | 501 B | Display | |
| Data in CIF | emd_4984_validation.cif.gz | 370 B | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4984 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4984 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6rqlMC ![]() 4982C ![]() 4985C ![]() 4987C ![]() 6rqhC ![]() 6rqtC ![]() 6rrdC ![]() 6ruiC ![]() 6ruoC ![]() 6rweC M: atomic model generated by this map 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_4984.map.gz / Format: CCP4 / Size: 209.3 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | RNA Polymerase I Closed Complex conformation 2 (CC2) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.04 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 Closed Complex conformation 2 (CC2)
+Supramolecule #1: RNA Polymerase I Closed Complex conformation 2 (CC2)
+Supramolecule #2: Nucleic acid
+Supramolecule #3: transcription initiation factor
+Supramolecule #4: RNA Polymerase I
+Macromolecule #1: Template strand
+Macromolecule #2: Nontemplate strand
+Macromolecule #3: RNA polymerase I-specific transcription initiation factor RRN7
+Macromolecule #4: RNA polymerase I-specific transcription initiation factor RRN6
+Macromolecule #5: RNA polymerase I-specific transcription initiation factor RRN11
+Macromolecule #6: DNA-directed RNA polymerase I subunit RPA49
+Macromolecule #7: DNA-directed RNA polymerase I subunit RPA190
+Macromolecule #8: DNA-directed RNA polymerase I subunit RPA135
+Macromolecule #9: DNA-directed RNA polymerases I and III subunit RPAC1
+Macromolecule #10: DNA-directed RNA polymerase I subunit RPA14
+Macromolecule #11: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #12: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+Macromolecule #13: DNA-directed RNA polymerase I subunit RPA43
+Macromolecule #14: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #15: DNA-directed RNA polymerase I subunit RPA12
+Macromolecule #16: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+Macromolecule #17: DNA-directed RNA polymerases I and III subunit RPAC2
+Macromolecule #18: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+Macromolecule #19: DNA-directed RNA polymerase I subunit RPA34
+Macromolecule #20: RNA polymerase I-specific transcription initiation factor RRN3
-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: 1.1075 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
| Startup model | Type of model: EMDB MAP |
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| Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 24482 |
| Initial angle assignment | Type: ANGULAR RECONSTITUTION |
| Final angle assignment | Type: ANGULAR RECONSTITUTION |
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