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Yorodumi- EMDB-12795: Cryo-EM structure of human RNA Polymerase I in elongation state -
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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-12795 | |||||||||
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| Title | Cryo-EM structure of human RNA Polymerase I in elongation state | |||||||||
 Map data | Elongating human RNA Polymerase I, Map A, unsharpened | |||||||||
 Sample | 
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 Keywords | RNA polymerase I / human / rRNA transcription / DNA-dependent RNA polymerase / elongation state / TRANSCRIPTION | |||||||||
| Function / homology |  Function and homology informationRNA polymerase I transcription regulator complex / negative regulation of protein localization to nucleolus / nucleologenesis / neural crest formation / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / DNA/RNA hybrid binding / RNA polymerase I general transcription initiation factor binding / regulation of transcription by RNA polymerase I / RPAP3/R2TP/prefoldin-like complex ...RNA polymerase I transcription regulator complex / negative regulation of protein localization to nucleolus / nucleologenesis / neural crest formation / RNA Polymerase III Chain Elongation / RNA Polymerase III Transcription Termination / DNA/RNA hybrid binding / RNA polymerase I general transcription initiation factor binding / regulation of transcription by RNA polymerase I / RPAP3/R2TP/prefoldin-like complex / 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 I preinitiation complex assembly / RNA Polymerase III Abortive And Retractive Initiation / Cytosolic sensors of pathogen-associated DNA  / nucleobase-containing compound metabolic process / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / RNA Polymerase I Transcription Termination / MicroRNA (miRNA) biogenesis / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / 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 / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / termination of RNA polymerase I transcription / nucleolar large rRNA transcription by RNA polymerase I / mRNA Splicing - Minor Pathway / transcription initiation at RNA polymerase I promoter / PIWI-interacting RNA (piRNA) biogenesis / Processing of Capped Intron-Containing Pre-mRNA / rRNA transcription / RNA Polymerase I Transcription Initiation / transcription by RNA polymerase III / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / RNA polymerase II transcribes snRNA genes / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex  / RNA Polymerase II Pre-transcription Events / embryo implantation / mRNA Splicing - Major Pathway / Inhibition of DNA recombination at telomere / cell surface receptor protein tyrosine kinase signaling pathway / cellular response to leukemia inhibitory factor / TP53 Regulates Transcription of DNA Repair Genes / RNA Polymerase I Promoter Escape / DNA-templated transcription initiation / Transcriptional regulation by small RNAs / protein-DNA complex / 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 / Activation of anterior HOX genes in hindbrain development during early embryogenesis / fibrillar center / DNA-directed RNA polymerase / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / DNA-directed RNA polymerase activity / single-stranded DNA binding / chromosome / Estrogen-dependent gene expression / nucleic acid binding / transcription by RNA polymerase II / protein dimerization activity / protein stabilization / chromatin binding / chromatin / nucleolus / magnesium ion binding / mitochondrion / DNA binding / RNA binding / zinc ion binding / nucleoplasm / nucleus / cytoplasm Similarity search - Function  | |||||||||
| Biological species |  Homo sapiens (human) | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.7 Å | |||||||||
 Authors | Misiaszek AD / Girbig M | |||||||||
 Citation |  Journal: Nat Struct Mol Biol / Year: 2021Title: Cryo-EM structures of human RNA polymerase I. Authors: Agata D Misiaszek / Mathias Girbig / Helga Grötsch / Florence Baudin / Brice Murciano / Aleix Lafita / Christoph W Müller /   ![]() Abstract: RNA polymerase I (Pol I) specifically synthesizes ribosomal RNA. Pol I upregulation is linked to cancer, while mutations in the Pol I machinery lead to developmental disorders. Here we report the ...RNA polymerase I (Pol I) specifically synthesizes ribosomal RNA. Pol I upregulation is linked to cancer, while mutations in the Pol I machinery lead to developmental disorders. Here we report the cryo-EM structure of elongating human Pol I at 2.7 Å resolution. In the exit tunnel, we observe a double-stranded RNA helix that may support Pol I processivity. Our structure confirms that human Pol I consists of 13 subunits with only one subunit forming the Pol I stalk. Additionally, the structure of human Pol I in complex with the initiation factor RRN3 at 3.1 Å resolution reveals stalk flipping upon RRN3 binding. We also observe an inactivated state of human Pol I bound to an open DNA scaffold at 3.3 Å resolution. Lastly, the high-resolution structure of human Pol I allows mapping of disease-related mutations that can aid understanding of disease etiology.  | |||||||||
| History | 
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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_12795.map.gz | 65.2 MB |  EMDB map data format | |
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| Header (meta data) |  emd-12795-v30.xml emd-12795.xml | 61.1 KB 61.1 KB  | Display Display  |  EMDB header | 
| FSC (resolution estimation) |  emd_12795_fsc.xml | 10 KB | Display |  FSC data file | 
| Images |  emd_12795.png | 62.1 KB | ||
| Masks |  emd_12795_msk_1.map emd_12795_msk_2.map emd_12795_msk_3.map | 83.7 MB 83.7 MB 83.7 MB  |  Mask map | |
| Filedesc metadata |  emd-12795.cif.gz | 11.5 KB | ||
| Others |  emd_12795_additional_1.map.gz emd_12795_additional_2.map.gz emd_12795_additional_3.map.gz emd_12795_additional_4.map.gz emd_12795_additional_5.map.gz emd_12795_additional_6.map.gz emd_12795_additional_7.map.gz emd_12795_additional_8.map.gz emd_12795_additional_9.map.gz emd_12795_half_map_1.map.gz emd_12795_half_map_2.map.gz | 75.3 MB 64.9 MB 73.5 MB 66.8 MB 62.3 MB 73.9 MB 76.1 MB 67.2 MB 74.8 MB 65.4 MB 65.4 MB  | ||
| Archive directory |  http://ftp.pdbj.org/pub/emdb/structures/EMD-12795 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-12795 | HTTPS FTP  | 
-Validation report
| Summary document |  emd_12795_validation.pdf.gz | 1.1 MB | Display |  EMDB validaton report | 
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| Full document |  emd_12795_full_validation.pdf.gz | 1.1 MB | Display | |
| Data in XML |  emd_12795_validation.xml.gz | 17 KB | Display | |
| Data in CIF |  emd_12795_validation.cif.gz | 22.4 KB | Display | |
| Arichive directory |  https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-12795 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-12795 | HTTPS FTP  | 
-Related structure data
| Related structure data | ![]() 7ob9MC ![]() 7obaC ![]() 7obbC M: atomic model generated by this map C: citing same article (  | 
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| Similar structure data | |
| EM raw data |  EMPIAR-10965 (Title: Cryo-EM structure of human RNA polymerase I in elongation stateData size: 1.8 TB Data #1: Unaligned multi-frame micrographs of human RNA polymerase I in elongating state [micrographs - multiframe])  | 
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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_12795.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Elongating human RNA Polymerase I, Map A, unsharpened | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
 
 Images are generated by Spider.  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.822 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density | 
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML: 
 CCP4 map header: 
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-Supplemental data
+Mask #1
+Mask #2
+Mask #3
+Additional map: Elongating human RNA Polymerase I, Map B1, RELION...
+Additional map: Elongating human RNA Polymerase I, Map A, locally...
+Additional map: Elongating human RNA Polymerase I, Map B, RELION...
+Additional map: Elongating human RNA Polymerase I, Map B2, RELION...
+Additional map: Elongating human RNA Polymerase I, Map B1, RELION...
+Additional map: Elongating human RNA Polymerase I, Map B, RELION...
+Additional map: Elongating human RNA Polymerase I, Map B2, RELION...
+Additional map: Elongating human RNA Polymerase I, Map C, Phenix...
+Additional map: Elongating human RNA Polymerase I, Map C, Phenix...
+Half map: Elongating human RNA Polymerase I, Map A, half map 2
+Half map: Elongating human RNA Polymerase I, Map A, half map 2
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Sample components
+Entire : RNA polymerase I
+Supramolecule #1: RNA polymerase I
+Supramolecule #2: RNA polymerase I
+Supramolecule #3: RNA and DNA
+Macromolecule #1: DNA-directed RNA polymerase I subunit RPA1
+Macromolecule #2: DNA-directed RNA polymerase I subunit RPA2
+Macromolecule #3: DNA-directed RNA polymerases I and III subunit RPAC1
+Macromolecule #4: DNA-directed RNA polymerases I, II, and III subunit RPABC1
+Macromolecule #5: DNA-directed RNA polymerases I, II, and III subunit RPABC2
+Macromolecule #6: DNA-directed RNA polymerase I subunit RPA43
+Macromolecule #7: DNA-directed RNA polymerases I, II, and III subunit RPABC3
+Macromolecule #8: DNA-directed RNA polymerase I subunit RPA12
+Macromolecule #9: DNA-directed RNA polymerases I, II, and III subunit RPABC5
+Macromolecule #10: DNA-directed RNA polymerases I and III subunit RPAC2
+Macromolecule #11: DNA-directed RNA polymerases I, II, and III subunit RPABC4
+Macromolecule #12: DNA-directed RNA polymerase I subunit RPA34
+Macromolecule #13: DNA-directed RNA polymerase I subunit RPA49
+Macromolecule #14: RNA
+Macromolecule #15: DNA non-template strand
+Macromolecule #16: DNA template strand
+Macromolecule #17: ZINC ION
+Macromolecule #18: MAGNESIUM 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 | 0.7 mg/mL | |||||||||||||||
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| Buffer | pH: 7.5  Component: 
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| Grid | Model: Quantifoil R2/1 / Material: COPPER / Mesh: 200  / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: OTHER Details: NanoClean plasma cleaner (Fischione Instruments, Model 1070)  | |||||||||||||||
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 288 K / Instrument: FEI VITROBOT MARK IV / Details: blot force 3, blot time 0 s, wait time 0 s. | |||||||||||||||
| Details | Human RNA Polymerase I with 1.5 molar excess of the synthetic nucleic acid template | 
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Electron microscopy
| Microscope | FEI TITAN KRIOS | 
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 1 / Number real images: 10053 / Average electron dose: 50.9 e/Å2 | 
| Electron beam | Acceleration voltage: 300 kV / Electron source:  FIELD EMISSION GUN | 
| Electron optics | C2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 105000 | 
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN | 
| 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 with UCSF Chimera followed by manual model fitting in Coot. | ||||||||||||||||
| Output model | ![]() PDB-7ob9:   | 
Movie
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About Yorodumi


Keywords
Homo sapiens (human)
Authors
Citation
 
UCSF Chimera































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