+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-11904 | ||||||||||||
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Title | Apo Human RNA Polymerase III | ||||||||||||
Map data | |||||||||||||
Sample |
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Function / homology | Function and homology information snRNA transcription by RNA polymerase III / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / calcitonin gene-related peptide receptor activity / DNA/RNA hybrid binding / regulation of transcription by RNA polymerase I / regulation of transcription by RNA polymerase III / RPAP3/R2TP/prefoldin-like complex / DNA polymerase III complex / Cytosolic sensors of pathogen-associated DNA ...snRNA transcription by RNA polymerase III / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / calcitonin gene-related peptide receptor activity / DNA/RNA hybrid binding / regulation of transcription by RNA polymerase I / regulation of transcription by RNA polymerase III / RPAP3/R2TP/prefoldin-like complex / DNA polymerase III complex / Cytosolic sensors of pathogen-associated DNA / 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 / RNA Polymerase III Abortive And Retractive Initiation / positive regulation of innate immune response / Abortive elongation of HIV-1 transcript in the absence of Tat / nucleobase-containing compound metabolic process / RNA Polymerase I Transcription Termination / FGFR2 alternative splicing / MicroRNA (miRNA) biogenesis / Signaling by FGFR2 IIIa TM / Viral Messenger RNA Synthesis / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / PIWI-interacting RNA (piRNA) biogenesis / termination of RNA polymerase III transcription / HIV Transcription Initiation / RNA Polymerase II HIV Promoter Escape / Transcription of the HIV genome / 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 III activity / transcription initiation at RNA polymerase III promoter / mRNA Splicing - Minor Pathway / RNA Polymerase I Transcription Initiation / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / transcription by RNA polymerase I / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Processing of Capped Intron-Containing Pre-mRNA / transcription by RNA polymerase III / RNA polymerase II transcribes snRNA genes / neuropeptide signaling pathway / Tat-mediated elongation of the HIV-1 transcript / transcription elongation by RNA polymerase I / Formation of HIV-1 elongation complex containing HIV-1 Tat / tRNA transcription by RNA polymerase III / RNA polymerase I activity / RNA polymerase I complex / RNA polymerase III complex / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase II, core complex / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / Inhibition of DNA recombination at telomere / positive regulation of interferon-beta production / mRNA Splicing - Major Pathway / acrosomal vesicle / protein-DNA complex / TP53 Regulates Transcription of DNA Repair Genes / RNA Polymerase I Promoter Escape / Transcriptional regulation by small RNAs / NoRC negatively regulates rRNA expression / B-WICH complex positively regulates rRNA expression / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / ribonucleoside binding / fibrillar center / DNA-directed 5'-3' RNA polymerase activity / Activation of anterior HOX genes in hindbrain development during early embryogenesis / DNA-directed RNA polymerase / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / single-stranded DNA binding / 4 iron, 4 sulfur cluster binding / double-stranded DNA binding / defense response to virus / Estrogen-dependent gene expression / transcription by RNA polymerase II / nucleic acid binding / protein dimerization activity / protein stabilization / intracellular membrane-bounded organelle / innate immune response / nucleotide binding / centrosome / DNA-templated transcription / chromatin binding / magnesium ion binding / DNA binding / zinc ion binding / nucleoplasm / membrane Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) / Human (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.0 Å | ||||||||||||
Authors | Ramsay EP / Abascal-Palacios G / Daiss JL / King H / Gouge J / Pilsl M / Beuron F / Morris E / Gunkel P / Engel C / Vannini A | ||||||||||||
Funding support | United Kingdom, Germany, 3 items
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Citation | Journal: Nat Commun / Year: 2020 Title: Structure of human RNA polymerase III. Authors: Ewan Phillip Ramsay / Guillermo Abascal-Palacios / Julia L Daiß / Helen King / Jerome Gouge / Michael Pilsl / Fabienne Beuron / Edward Morris / Philip Gunkel / Christoph Engel / Alessandro Vannini / Abstract: In eukaryotes, RNA Polymerase (Pol) III is specialized for the transcription of tRNAs and other short, untranslated RNAs. Pol III is a determinant of cellular growth and lifespan across eukaryotes. ...In eukaryotes, RNA Polymerase (Pol) III is specialized for the transcription of tRNAs and other short, untranslated RNAs. Pol III is a determinant of cellular growth and lifespan across eukaryotes. Upregulation of Pol III transcription is observed in cancer and causative Pol III mutations have been described in neurodevelopmental disorders and hypersensitivity to viral infection. Here, we report a cryo-EM reconstruction at 4.0 Å of human Pol III, allowing mapping and rationalization of reported genetic mutations. Mutations causing neurodevelopmental defects cluster in hotspots affecting Pol III stability and/or biogenesis, whereas mutations affecting viral sensing are located in proximity to DNA binding regions, suggesting an impairment of Pol III cytosolic viral DNA-sensing. Integrating x-ray crystallography and SAXS, we also describe the structure of the higher eukaryote specific RPC5 C-terminal extension. Surprisingly, experiments in living cells highlight a role for this module in the assembly and stability of human Pol III. | ||||||||||||
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_11904.map.gz | 103 MB | EMDB map data format | |
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Header (meta data) | emd-11904-v30.xml emd-11904.xml | 31.8 KB 31.8 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_11904_fsc.xml | 12.8 KB | Display | FSC data file |
Images | emd_11904.png | 60.9 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-11904 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-11904 | HTTPS FTP |
-Validation report
Summary document | emd_11904_validation.pdf.gz | 251 KB | Display | EMDB validaton report |
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Full document | emd_11904_full_validation.pdf.gz | 250.2 KB | Display | |
Data in XML | emd_11904_validation.xml.gz | 12.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11904 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-11904 | HTTPS FTP |
-Related structure data
Related structure data | 7astMC 7asuC 7asvC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_11904.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.065 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
+Entire : Human RNA Polymerase III
+Supramolecule #1: Human RNA Polymerase III
+Macromolecule #1: DNA-directed RNA polymerase III subunit RPC1
+Macromolecule #2: DNA-directed RNA polymerase III subunit RPC10
+Macromolecule #3: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+Macromolecule #4: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+Macromolecule #5: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #6: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+Macromolecule #7: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #8: DNA-directed RNA polymerases I and III subunit RPAC2
+Macromolecule #9: DNA-directed RNA polymerases I and III subunit RPAC1
+Macromolecule #10: DNA-directed RNA polymerase III subunit RPC9
+Macromolecule #11: DNA-directed RNA polymerase III subunit RPC8
+Macromolecule #12: DNA-directed RNA polymerase III subunit RPC5
+Macromolecule #13: DNA-directed RNA polymerase III subunit RPC4
+Macromolecule #14: DNA-directed RNA polymerase III subunit RPC2
+Macromolecule #15: DNA-directed RNA polymerase III subunit RPC6
+Macromolecule #16: DNA-directed RNA polymerase III subunit RPC3
+Macromolecule #17: DNA-directed RNA polymerase III subunit RPC7-beta
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.06 mg/mL | ||||||||||||||||||
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Buffer | pH: 8 Component:
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Grid | Model: C-flat-1.2/1.3 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Pretreatment - Type: GLOW DISCHARGE | ||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 291 K / Instrument: FEI VITROBOT MARK IV | ||||||||||||||||||
Details | The sample was monodisperse with well-defined complex particles. |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Average exposure time: 70.0 sec. / Average electron dose: 40.8 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 75000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |