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Yorodumi- PDB-8ceh: Translocation intermediate 4 (TI-4) of 80S S. cerevisiae ribosome... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8ceh | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Title | Translocation intermediate 4 (TI-4) of 80S S. cerevisiae ribosome with ligands and eEF2 in the presence of sordarin | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components |
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Keywords | RIBOSOME / Eukaryote / translocation / elongation | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationribosomal subunit / ribophagy / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / response to cycloheximide / translational readthrough / mTORC1-mediated signalling ...ribosomal subunit / ribophagy / regulation of amino acid metabolic process / negative regulation of glucose mediated signaling pathway / positive regulation of translational fidelity / RMTs methylate histone arginines / Protein methylation / response to cycloheximide / translational readthrough / mTORC1-mediated signalling / Protein hydroxylation / pre-mRNA 5'-splice site binding / GDP-dissociation inhibitor activity / Ribosome Quality Control (RQC) complex extracts and degrades nascent peptide / ascospore wall assembly / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / cytosolic large ribosomal subunit assembly / Ribosomal scanning and start codon recognition / nonfunctional rRNA decay / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / mRNA destabilization / Major pathway of rRNA processing in the nucleolus and cytosol / PELO:HBS1L and ABCE1 dissociate a ribosome on a non-stop mRNA / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / protein-RNA complex assembly / Formation of a pool of free 40S subunits / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / preribosome, large subunit precursor / positive regulation of protein kinase activity / L13a-mediated translational silencing of Ceruloplasmin expression / negative regulation of mRNA splicing, via spliceosome / negative regulation of translational frameshifting / ribosomal large subunit export from nucleus / translational elongation / translation elongation factor activity / G-protein alpha-subunit binding / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / 90S preribosome / ribosomal subunit export from nucleus / translational termination / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of translational fidelity / ribosome-associated ubiquitin-dependent protein catabolic process / maturation of LSU-rRNA / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / translation regulator activity / positive regulation of apoptotic signaling pathway / cellular response to amino acid starvation / protein kinase C binding / macroautophagy / rescue of stalled cytosolic ribosome / ribosomal large subunit biogenesis / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / translational initiation / maintenance of translational fidelity / modification-dependent protein catabolic process / cytoplasmic stress granule / protein tag activity / rRNA processing / cytosolic ribosome / ribosomal small subunit assembly / ribosome biogenesis / ribosome binding / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / small ribosomal subunit / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / rRNA binding / negative regulation of translation / protein ubiquitination / ribonucleoprotein complex / ribosome / translation / structural constituent of ribosome / response to antibiotic / G protein-coupled receptor signaling pathway / negative regulation of gene expression / mRNA binding / ubiquitin protein ligase binding / GTPase activity / nucleolus / GTP binding / mitochondrion / RNA binding / metal ion binding / zinc ion binding / nucleoplasm / nucleus / cytosol Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological species | ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.05 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Milicevic, N. / Jenner, L. / Myasnikov, A. / Yusupov, M. / Yusupova, G. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | France, 1items
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Citation | Journal: Nature / Year: 2024Title: mRNA reading frame maintenance during eukaryotic ribosome translocation. Authors: Nemanja Milicevic / Lasse Jenner / Alexander Myasnikov / Marat Yusupov / Gulnara Yusupova / ![]() Abstract: One of the most critical steps of protein synthesis is coupled translocation of messenger RNA (mRNA) and transfer RNAs (tRNAs) required to advance the mRNA reading frame by one codon. In ...One of the most critical steps of protein synthesis is coupled translocation of messenger RNA (mRNA) and transfer RNAs (tRNAs) required to advance the mRNA reading frame by one codon. In eukaryotes, translocation is accelerated and its fidelity is maintained by elongation factor 2 (eEF2). At present, only a few snapshots of eukaryotic ribosome translocation have been reported. Here we report ten high-resolution cryogenic-electron microscopy (cryo-EM) structures of the elongating eukaryotic ribosome bound to the full translocation module consisting of mRNA, peptidyl-tRNA and deacylated tRNA, seven of which also contained ribosome-bound, naturally modified eEF2. This study recapitulates mRNA-tRNA-growing peptide module progression through the ribosome, from the earliest states of eEF2 translocase accommodation until the very late stages of the process, and shows an intricate network of interactions preventing the slippage of the translational reading frame. We demonstrate how the accuracy of eukaryotic translocation relies on eukaryote-specific elements of the 80S ribosome, eEF2 and tRNAs. Our findings shed light on the mechanism of translation arrest by the anti-fungal eEF2-binding inhibitor, sordarin. We also propose that the sterically constrained environment imposed by diphthamide, a conserved eukaryotic posttranslational modification in eEF2, not only stabilizes correct Watson-Crick codon-anticodon interactions but may also uncover erroneous peptidyl-tRNA, and therefore contribute to higher accuracy of protein synthesis in eukaryotes. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8ceh.cif.gz | 4.6 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb8ceh.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8ceh.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ce/8ceh ftp://data.pdbj.org/pub/pdb/validation_reports/ce/8ceh | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 16609MC ![]() 8ccsC ![]() 8cdlC ![]() 8cdrC ![]() 8cf5C ![]() 8cg8C ![]() 8cgnC ![]() 8civC ![]() 8ckuC ![]() 8cmjC C: citing same article ( M: map data used to model this data |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
+40S ribosomal protein ... , 28 types, 28 molecules 012346defhijklmnopqrstuvwxyz
-Protein , 8 types, 8 molecules 578AaDDLLYg
| #6: Protein | Mass: 6675.723 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #8: Protein | Mass: 34841.219 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #9: Protein | Mass: 17254.227 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #12: Protein | Mass: 93549.320 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #20: Protein | Mass: 33749.121 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #38: Protein | Mass: 21605.061 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #57: Protein | Mass: 14583.077 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #65: Protein | Mass: 26542.789 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
+60S ribosomal protein ... , 40 types, 40 molecules ABCDEEEEeFFFGGGHHHIIIJJJKKKLMMMNNNOOOPPPQQQ...
-RNA chain , 5 types, 5 molecules AABBCCDdc
| #11: RNA chain | Mass: 1098082.750 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #14: RNA chain | Mass: 38951.105 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #17: RNA chain | Mass: 50682.922 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #21: RNA chain | Mass: 12744.786 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
| #61: RNA chain | Mass: 580284.688 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Transfer RNA ... , 2 types, 2 molecules BbCc
| #15: RNA chain | Mass: 24743.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #18: RNA chain | Mass: 24801.801 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Protein/peptide , 1 types, 1 molecules Pp
| #47: Protein/peptide | Mass: 296.385 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Non-polymers , 8 types, 1272 molecules 














| #85: Chemical | ChemComp-ZN / #86: Chemical | ChemComp-MG / #87: Chemical | ChemComp-K / #88: Chemical | #89: Chemical | ChemComp-GDP / | #90: Chemical | ChemComp-PO4 / | #91: Chemical | ChemComp-SO1 / [ | #92: Water | ChemComp-HOH / | |
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-Details
| Has ligand of interest | Y |
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| Has protein modification | Y |
-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
| Component | Name: 80S Saccharomyces cerevisiae ribosome in complex with eEF2.sordarin and ligands Type: RIBOSOME / Entity ID: #1-#60, #62-#84 / Source: NATURAL |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 270000 X / Nominal defocus max: 1000 nm / Nominal defocus min: 400 nm / C2 aperture diameter: 50 µm / Alignment procedure: BASIC |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 40 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
| Software | Name: UCSF ChimeraX / Version: 1.3/v9 / Classification: model building / URL: https://www.rbvi.ucsf.edu/chimerax/ / Os: Linux / Type: package |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 3D reconstruction | Resolution: 2.05 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 58351 / Symmetry type: POINT |
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FIELD EMISSION GUN