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- PDB-6gz3: tRNA translocation by the eukaryotic 80S ribosome and the impact ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6gz3 | ||||||||||||
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Title | tRNA translocation by the eukaryotic 80S ribosome and the impact of GTP hydrolysis, Translocation-intermediate-POST-1 (TI-POST-1) | ||||||||||||
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![]() | RIBOSOME / translocation rabbit ribosome / 80S / eEF2 / head swivel / rotation | ||||||||||||
Function / homology | ![]() exit from mitosis / optic nerve development / retinal ganglion cell axon guidance / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / phagocytic cup / 90S preribosome / rough endoplasmic reticulum / translation regulator activity / gastrulation ...exit from mitosis / optic nerve development / retinal ganglion cell axon guidance / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / phagocytic cup / 90S preribosome / rough endoplasmic reticulum / translation regulator activity / gastrulation / MDM2/MDM4 family protein binding / cytosolic ribosome / maturation of SSU-rRNA / small-subunit processome / mRNA 5'-UTR binding / rRNA processing / rhythmic process / positive regulation of canonical Wnt signaling pathway / regulation of translation / large ribosomal subunit / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / retina development in camera-type eye / small ribosomal subunit / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / small ribosomal subunit rRNA binding / perikaryon / cytosolic large ribosomal subunit / cytoplasmic translation / cell differentiation / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / mRNA binding / apoptotic process / synapse / centrosome / dendrite / negative regulation of apoptotic process / nucleolus / perinuclear region of cytoplasm / endoplasmic reticulum / Golgi apparatus / RNA binding / zinc ion binding / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.6 Å | ||||||||||||
![]() | Flis, J. / Holm, M. / Rundlet, E.J. / Loerke, J. / Hilal, T. / Dabrowski, M. / Buerger, J. / Mielke, T. / Blanchard, S.C. / Spahn, C.M.T. / Budkevich, T.V. | ||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() 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
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 4.8 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 0098MC ![]() 0099C ![]() 0100C ![]() 6gz4C ![]() 6gz5C M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
-RNA chain , 7 types, 7 molecules A2BvBxBwB1A3A4
#1: RNA chain | Mass: 1170164.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#2: RNA chain | Mass: 24437.535 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#3: RNA chain | Mass: 3837.328 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#4: RNA chain | Mass: 24533.586 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#5: RNA chain | Mass: 551108.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#39: RNA chain | Mass: 50449.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#40: RNA chain | Mass: 38385.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+Ribosomal protein ... , 72 types, 72 molecules BDBFBKBPBQBRBSBTBUBZBcBdBfBgBABCBEBIBJBLBNBOBVBWBXBYBaBbBeAA...
-40S ribosomal protein ... , 4 types, 4 molecules BMBBBGBH
#9: Protein | Mass: 13393.658 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#22: Protein | Mass: 24660.012 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#25: Protein | Mass: 26913.867 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#26: Protein | Mass: 20990.465 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein , 3 types, 3 molecules AZAuCt
#65: Protein | Mass: 15647.584 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#83: Protein | Mass: 24879.422 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#86: Protein | Mass: 95056.734 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Non-polymers , 3 types, 333 molecules 




#87: Chemical | ChemComp-MG / #88: Chemical | ChemComp-ZN / #89: Chemical | ChemComp-GNP / | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Value: 4.3 MDa / Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) | Organism: ![]() | ||||||||||||||||||||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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Microscopy | Model: FEI POLARA 300 |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Average exposure time: 5 sec. / Electron dose: 30 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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Particle selection | Num. of particles selected: 270000 |
Symmetry | Point symmetry: C1 (asymmetric) |
3D reconstruction | Resolution: 3.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 32386 / Symmetry type: POINT |
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL |