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Yorodumi- EMDB-0099: tRNA translocation by the eukaryotic 80S ribosome and the impact ... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-0099 | ||||||||||||
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Title | tRNA translocation by the eukaryotic 80S ribosome and the impact of GTP hydrolysis, Translocation-intermediate-POST-2 (TI-POST-2) | ||||||||||||
Map data | |||||||||||||
Sample |
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Biological species | Oryctolagus cuniculus (rabbit) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | ||||||||||||
Authors | Flis J / Holm M / Rundlet EJ / Loerke J / Hilal T / Dabrowski M / Buerger J / Mielke T / Blanchard SC / Spahn CMT / Budkevich TV | ||||||||||||
Funding support | Germany, United States, 3 items
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Citation | Journal: Cell Rep / Year: 2018 Title: tRNA Translocation by the Eukaryotic 80S Ribosome and the Impact of GTP Hydrolysis. Authors: Julia Flis / Mikael Holm / Emily J Rundlet / Justus Loerke / Tarek Hilal / Marylena Dabrowski / Jörg Bürger / Thorsten Mielke / Scott C Blanchard / Christian M T Spahn / Tatyana V Budkevich / Abstract: Translocation moves the tRNA⋅mRNA module directionally through the ribosome during the elongation phase of protein synthesis. Although translocation is known to entail large conformational changes ...Translocation moves the tRNA⋅mRNA module directionally through the ribosome during the elongation phase of protein synthesis. Although translocation is known to entail large conformational changes within both the ribosome and tRNA substrates, the orchestrated events that ensure the speed and fidelity of this critical aspect of the protein synthesis mechanism have not been fully elucidated. Here, we present three high-resolution structures of intermediates of translocation on the mammalian ribosome where, in contrast to bacteria, ribosomal complexes containing the translocase eEF2 and the complete tRNA⋅mRNA module are trapped by the non-hydrolyzable GTP analog GMPPNP. Consistent with the observed structures, single-molecule imaging revealed that GTP hydrolysis principally facilitates rate-limiting, final steps of translocation, which are required for factor dissociation and which are differentially regulated in bacterial and mammalian systems by the rates of deacyl-tRNA dissociation from the E site. | ||||||||||||
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_0099.map.gz | 230.6 MB | EMDB map data format | |
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Header (meta data) | emd-0099-v30.xml emd-0099.xml | 93.4 KB 93.4 KB | Display Display | EMDB header |
Images | emd_0099.png | 73.9 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-0099 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-0099 | HTTPS FTP |
-Validation report
Summary document | emd_0099_validation.pdf.gz | 405.2 KB | Display | EMDB validaton report |
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Full document | emd_0099_full_validation.pdf.gz | 404.8 KB | Display | |
Data in XML | emd_0099_validation.xml.gz | 7.5 KB | Display | |
Data in CIF | emd_0099_validation.cif.gz | 8.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0099 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0099 | HTTPS FTP |
-Related structure data
Related structure data | 6gz4MC 0098C 0100C 6gz3C 6gz5C C: citing same article (ref.) M: atomic model generated by this map |
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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_0099.map.gz / Format: CCP4 / Size: 253.4 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: 0.975 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 : TI-POST-2
+Supramolecule #1: TI-POST-2
+Macromolecule #1: ribosomal protein uL2
+Macromolecule #2: ribosomal protein uS2
+Macromolecule #3: ribosomal protein uL3
+Macromolecule #4: ribosomal protein eS1
+Macromolecule #5: ribosomal protein uL4
+Macromolecule #6: ribosomal protein eS28
+Macromolecule #12: ribosomal protein uS3
+Macromolecule #13: ribosomal protein uS7
+Macromolecule #14: ribosomal protein eS10
+Macromolecule #15: ribosomal protein eS12
+Macromolecule #16: ribosomal protein uS19
+Macromolecule #17: ribosomal protein uS9
+Macromolecule #18: ribosomal protein eS17
+Macromolecule #19: ribosomal protein uS13
+Macromolecule #20: ribosomal protein eS19
+Macromolecule #21: ribosomal protein uS10
+Macromolecule #22: ribosomal protein uS10
+Macromolecule #23: ribosomal protein eS28
+Macromolecule #24: ribosomal protein uS14
+Macromolecule #25: ribosomal protein eS31
+Macromolecule #26: ribosomal protein RACK 1
+Macromolecule #27: ribosomal protein eS4
+Macromolecule #28: ribosomal protein eS6
+Macromolecule #29: ribosomal protein eS7
+Macromolecule #30: ribosomal protein eS8
+Macromolecule #31: ribosomal protein uS4
+Macromolecule #32: ribosomal protein uS17
+Macromolecule #33: ribosomal protein uS15
+Macromolecule #34: ribosomal protein uS11
+Macromolecule #35: ribosomal protein eS21
+Macromolecule #36: ribosomal protein uS8
+Macromolecule #37: ribosomal protein uS12
+Macromolecule #38: ribosomal protein eS24
+Macromolecule #39: ribosomal protein eS26
+Macromolecule #40: ribosomal protein eS27
+Macromolecule #41: ribosomal protein eS30
+Macromolecule #44: ribosomal protein uL18
+Macromolecule #45: ribosomal protein eL6
+Macromolecule #46: ribosomal protein uL30
+Macromolecule #47: ribosomal protein eL8
+Macromolecule #48: ribosomal protein uL6
+Macromolecule #49: ribosomal protein uL16
+Macromolecule #50: ribosomal protein uL5
+Macromolecule #51: ribosomal protein eL13
+Macromolecule #52: ribosomal protein eL14
+Macromolecule #53: ribosomal protein eL15
+Macromolecule #54: ribosomal protein uL13
+Macromolecule #55: ribosomal protein uL22
+Macromolecule #56: ribosomal protein eL18
+Macromolecule #57: ribosomal protein eL19
+Macromolecule #58: ribosomal protein eL20
+Macromolecule #59: ribosomal protein eL21
+Macromolecule #60: ribosomal protein eL22
+Macromolecule #61: ribosomal protein uL14
+Macromolecule #62: ribosomal protein eL24
+Macromolecule #63: ribosomal protein uL23
+Macromolecule #64: ribosomal protein uL24
+Macromolecule #65: ribosomal protein eL27
+Macromolecule #66: ribosomal protein uL15
+Macromolecule #67: ribosomal protein eL29
+Macromolecule #68: ribosomal protein eL30
+Macromolecule #69: ribosomal protein eL31
+Macromolecule #70: ribosomal protein eL32
+Macromolecule #71: ribosomal protein eL33
+Macromolecule #72: ribosomal protein eL34
+Macromolecule #73: ribosomal protein uL29
+Macromolecule #74: ribosomal protein eL36
+Macromolecule #75: ribosomal protein eL37
+Macromolecule #76: ribosomal protein eL38
+Macromolecule #77: ribosomal protein eL39
+Macromolecule #78: ribosomal protein eL40
+Macromolecule #79: ribosomal protein eL41
+Macromolecule #80: ribosomal protein eL42
+Macromolecule #81: ribosomal protein eL43
+Macromolecule #82: ribosomal protein eL28
+Macromolecule #83: ribosomal protein uL1
+Macromolecule #84: ribosomal protein uL11
+Macromolecule #85: ribosomal protein uL10
+Macromolecule #86: eukaryotic elongation factor 2 (eEF2)
+Macromolecule #7: 28S ribosomal RNA
+Macromolecule #8: ap/P-site tRNA
+Macromolecule #9: mRNA
+Macromolecule #10: pe/E-site-tRNA
+Macromolecule #11: 18S ribosomal RNA
+Macromolecule #42: 5.8S ribosomal RNA
+Macromolecule #43: 5S ribosomal RNA
+Macromolecule #87: MAGNESIUM ION
+Macromolecule #88: ZINC ION
+Macromolecule #89: PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI POLARA 300 |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 30.0 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: Tecnai Polara / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 37941 |
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Initial angle assignment | Type: PROJECTION MATCHING |
Final angle assignment | Type: PROJECTION MATCHING |
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: RIGID BODY FIT |
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Output model | PDB-6gz4: |