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Yorodumi- EMDB-22586: Structure of the Bacterial Ribosome at 2 Angstrom Resolution (com... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-22586 | |||||||||
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Title | Structure of the Bacterial Ribosome at 2 Angstrom Resolution (composite structure) | |||||||||
Map data | 70S ribosome map (composite structure) | |||||||||
Sample |
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Keywords | antibiotics / post-translational modifications / post-transcriptional modifications / RIBOSOME | |||||||||
Function / homology | Function and homology information positive regulation of ribosome biogenesis / DnaA-L2 complex / negative regulation of DNA-templated DNA replication initiation / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / regulation of cell growth / mRNA 5'-UTR binding / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome binding ...positive regulation of ribosome biogenesis / DnaA-L2 complex / negative regulation of DNA-templated DNA replication initiation / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / regulation of cell growth / mRNA 5'-UTR binding / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome binding / small ribosomal subunit / 5S rRNA binding / transferase activity / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / RNA binding / zinc ion binding / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 1.98 Å | |||||||||
Authors | Watson ZL / Ward FR | |||||||||
Funding support | United States, 2 items
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Citation | Journal: Elife / Year: 2020 Title: Structure of the bacterial ribosome at 2 Å resolution. Authors: Zoe L Watson / Fred R Ward / Raphaël Méheust / Omer Ad / Alanna Schepartz / Jillian F Banfield / Jamie Hd Cate / Abstract: Using cryo-electron microscopy (cryo-EM), we determined the structure of the 70S ribosome with a global resolution of 2.0 Å. The maps reveal unambiguous positioning of protein and RNA residues, ...Using cryo-electron microscopy (cryo-EM), we determined the structure of the 70S ribosome with a global resolution of 2.0 Å. The maps reveal unambiguous positioning of protein and RNA residues, their detailed chemical interactions, and chemical modifications. Notable features include the first examples of isopeptide and thioamide backbone substitutions in ribosomal proteins, the former likely conserved in all domains of life. The maps also reveal extensive solvation of the small (30S) ribosomal subunit, and interactions with A-site and P-site tRNAs, mRNA, and the antibiotic paromomycin. The maps and models of the bacterial ribosome presented here now allow a deeper phylogenetic analysis of ribosomal components including structural conservation to the level of solvation. The high quality of the maps should enable future structural analyses of the chemical basis for translation and aid the development of robust tools for cryo-EM structure modeling and refinement. | |||||||||
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_22586.map.gz | 431.5 MB | EMDB map data format | |
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Header (meta data) | emd-22586-v30.xml emd-22586.xml | 70.7 KB 70.7 KB | Display Display | EMDB header |
Images | emd_22586.png | 275.1 KB | ||
Filedesc metadata | emd-22586.cif.gz | 14.3 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-22586 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-22586 | HTTPS FTP |
-Validation report
Summary document | emd_22586_validation.pdf.gz | 670.9 KB | Display | EMDB validaton report |
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Full document | emd_22586_full_validation.pdf.gz | 670.5 KB | Display | |
Data in XML | emd_22586_validation.xml.gz | 7.6 KB | Display | |
Data in CIF | emd_22586_validation.cif.gz | 8.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-22586 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-22586 | HTTPS FTP |
-Related structure data
Related structure data | 7k00MC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10509 (Title: Structure of the Bacterial Ribosome at 2 Å Resolution Data size: 2.1 TB Data #1: Unaligned movies of 70S ribosome complex 1 [micrographs - multiframe] Data #2: Unaligned movies of 70S ribosome complex 2 [micrographs - multiframe]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_22586.map.gz / Format: CCP4 / Size: 465.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | 70S ribosome map (composite structure) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.7118 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 : E. coli 70S ribosome
+Supramolecule #1: E. coli 70S ribosome
+Macromolecule #1: 16S rRNA
+Macromolecule #22: 23S rRNA
+Macromolecule #23: 5S rRNA
+Macromolecule #53: mRNA
+Macromolecule #54: A-site tRNA-val
+Macromolecule #55: P-site tRNA-fMet
+Macromolecule #56: E-site tRNA
+Macromolecule #2: 30S ribosomal protein S2
+Macromolecule #3: 30S ribosomal protein S3
+Macromolecule #4: 30S ribosomal protein S4
+Macromolecule #5: 30S ribosomal protein S5
+Macromolecule #6: 30S ribosomal protein S6
+Macromolecule #7: 30S ribosomal protein S7
+Macromolecule #8: 30S ribosomal protein S8
+Macromolecule #9: 30S ribosomal protein S9
+Macromolecule #10: 30S ribosomal protein S10
+Macromolecule #11: 30S ribosomal protein S11
+Macromolecule #12: 30S ribosomal protein S12
+Macromolecule #13: 30S ribosomal protein S13
+Macromolecule #14: 30S ribosomal protein S14
+Macromolecule #15: 30S ribosomal protein S15
+Macromolecule #16: 30S ribosomal protein S16
+Macromolecule #17: 30S ribosomal protein S17
+Macromolecule #18: 30S ribosomal protein S18
+Macromolecule #19: 30S ribosomal protein S19
+Macromolecule #20: 30S ribosomal protein S20
+Macromolecule #21: 30S ribosomal protein S21
+Macromolecule #24: 50S ribosomal protein L2
+Macromolecule #25: 50S ribosomal protein L3
+Macromolecule #26: 50S ribosomal protein L4
+Macromolecule #27: 50S ribosomal protein L5
+Macromolecule #28: 50S ribosomal protein L6
+Macromolecule #29: 50S ribosomal protein L9
+Macromolecule #30: 50S ribosomal protein L13
+Macromolecule #31: 50S ribosomal protein L14
+Macromolecule #32: 50S ribosomal protein L15
+Macromolecule #33: 50S ribosomal protein L16
+Macromolecule #34: 50S ribosomal protein L17
+Macromolecule #35: 50S ribosomal protein L18
+Macromolecule #36: 50S ribosomal protein L19
+Macromolecule #37: 50S ribosomal protein L20
+Macromolecule #38: 50S ribosomal protein L21
+Macromolecule #39: 50S ribosomal protein L22
+Macromolecule #40: 50S ribosomal protein L23
+Macromolecule #41: 50S ribosomal protein L24
+Macromolecule #42: 50S ribosomal protein L25
+Macromolecule #43: 50S ribosomal protein L27
+Macromolecule #44: 50S ribosomal protein L28
+Macromolecule #45: 50S ribosomal protein L29
+Macromolecule #46: 50S ribosomal protein L30
+Macromolecule #47: 50S ribosomal protein L32
+Macromolecule #48: 50S ribosomal protein L33
+Macromolecule #49: 50S ribosomal protein L34
+Macromolecule #50: 50S ribosomal protein L35
+Macromolecule #51: 50S ribosomal protein L36
+Macromolecule #52: 50S ribosomal protein L31
+Macromolecule #57: PAROMOMYCIN
+Macromolecule #58: MAGNESIUM ION
+Macromolecule #59: SPERMIDINE
+Macromolecule #60: SPERMINE
+Macromolecule #61: ZINC ION
+Macromolecule #62: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.27 mg/mL |
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Buffer | pH: 7.5 |
Grid | Model: UltrAuFoil / Material: GOLD / Mesh: 300 / Support film - Material: CARBON / Pretreatment - Type: GLOW DISCHARGE |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK III |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 2 / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 1.98 Å / Resolution method: FSC 0.143 CUT-OFF / Details: Ewald sphere corrected in RELION / Number images used: 307495 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: RELION |