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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-0241 | |||||||||
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| Title | Yeast apo RNA polymerase I* | |||||||||
Map data | Yeast apo RNA polymerase I* | |||||||||
Sample |
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Keywords | transcription / polymerase / nucleotide / elongation | |||||||||
| Function / homology | Function and homology informationRNA 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 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 / 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: 3.21 Å | |||||||||
Authors | Tafur L / Sadian Y | |||||||||
| Funding support | Germany, 1 items
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Citation | Journal: Elife / Year: 2019Title: The cryo-EM structure of a 12-subunit variant of RNA polymerase I reveals dissociation of the A49-A34.5 heterodimer and rearrangement of subunit A12.2. Authors: Lucas Tafur / Yashar Sadian / Jonas Hanske / Rene Wetzel / Felix Weis / Christoph W Müller / ![]() Abstract: RNA polymerase (Pol) I is a 14-subunit enzyme that solely transcribes pre-ribosomal RNA. Cryo-electron microscopy (EM) structures of Pol I initiation and elongation complexes have given first ...RNA polymerase (Pol) I is a 14-subunit enzyme that solely transcribes pre-ribosomal RNA. Cryo-electron microscopy (EM) structures of Pol I initiation and elongation complexes have given first insights into the molecular mechanisms of Pol I transcription. Here, we present cryo-EM structures of yeast Pol I elongation complexes (ECs) bound to the nucleotide analog GMPCPP at 3.2 to 3.4 Å resolution that provide additional insight into the functional interplay between the Pol I-specific transcription-like factors A49-A34.5 and A12.2. Strikingly, most of the nucleotide-bound ECs lack the A49-A34.5 heterodimer and adopt a Pol II-like conformation, in which the A12.2 C-terminal domain is bound in a previously unobserved position at the A135 surface. Our structural and biochemical data suggest a mechanism where reversible binding of the A49-A34.5 heterodimer could contribute to the regulation of Pol I transcription initiation and elongation. | |||||||||
| History |
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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_0241.map.gz | 62.7 MB | EMDB map data format | |
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| Header (meta data) | emd-0241-v30.xml emd-0241.xml | 25.8 KB 25.8 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_0241_fsc.xml | 9.3 KB | Display | FSC data file |
| Images | emd_0241.png | 96.8 KB | ||
| Filedesc metadata | emd-0241.cif.gz | 8.9 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-0241 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-0241 | HTTPS FTP |
-Validation report
| Summary document | emd_0241_validation.pdf.gz | 336.7 KB | Display | EMDB validaton report |
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| Full document | emd_0241_full_validation.pdf.gz | 335.8 KB | Display | |
| Data in XML | emd_0241_validation.xml.gz | 10.9 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0241 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0241 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6hlsMC ![]() 0238C ![]() 0239C ![]() 0240C ![]() 0242C ![]() 6hkoC ![]() 6hlqC ![]() 6hlrC C: citing same article ( M: atomic model generated by this map |
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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_0241.map.gz / Format: CCP4 / Size: 67 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Yeast apo RNA polymerase I* | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 : Yeast apo RNA polymerase I*
+Supramolecule #1: Yeast apo RNA polymerase I*
+Macromolecule #1: DNA-directed RNA polymerase I subunit RPA190
+Macromolecule #2: DNA-directed RNA polymerase I subunit RPA135
+Macromolecule #3: DNA-directed RNA polymerases I and III subunit RPAC1
+Macromolecule #4: DNA-directed RNA polymerase I subunit RPA14
+Macromolecule #5: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #6: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+Macromolecule #7: DNA-directed RNA polymerase I subunit RPA43
+Macromolecule #8: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #9: DNA-directed RNA polymerase I subunit RPA12
+Macromolecule #10: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+Macromolecule #11: DNA-directed RNA polymerases I and III subunit RPAC2
+Macromolecule #12: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+Macromolecule #13: ZINC ION
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 0.1 mg/mL |
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| Buffer | pH: 7.5 |
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV Details: 30 seconds incubation 3 seconds blotting blotting force 3. |
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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) / Average electron dose: 39.0 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
-Atomic model buiding 1
| Initial model |
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| Details | Initial rigid body fitting was done in Chimera and model building was done in Coot. | ||||||
| Refinement | Space: REAL / Protocol: RIGID BODY FIT | ||||||
| Output model | ![]() PDB-6hls: |
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Keywords
Authors
Germany, 1 items
Citation
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