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- PDB-8cdr: Translocation intermediate 2 (TI-2) of 80S S. cerevisiae ribosome... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8cdr | ||||||
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Title | Translocation intermediate 2 (TI-2) of 80S S. cerevisiae ribosome with ligands and eEF2 in the presence of sordarin | ||||||
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![]() | RIBOSOME / Eukaryote / translocation / elongation | ||||||
Function / homology | ![]() ribosomal subunit / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / positive regulation of translational fidelity / Protein methylation / RMTs methylate histone arginines / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity ...ribosomal subunit / negative regulation of glucose mediated signaling pathway / negative regulation of translational frameshifting / positive regulation of translational fidelity / Protein methylation / RMTs methylate histone arginines / mTORC1-mediated signalling / Protein hydroxylation / ribosome-associated ubiquitin-dependent protein catabolic process / GDP-dissociation inhibitor activity / nonfunctional rRNA decay / pre-mRNA 5'-splice site binding / positive regulation of nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / Formation of the ternary complex, and subsequently, the 43S complex / Translation initiation complex formation / Ribosomal scanning and start codon recognition / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / mRNA destabilization / Major pathway of rRNA processing in the nucleolus and cytosol / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / 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) / negative regulation of mRNA splicing, via spliceosome / L13a-mediated translational silencing of Ceruloplasmin expression / regulation of cellular amino acid metabolic process / preribosome, large subunit precursor / translational elongation / ribosomal large subunit export from nucleus / 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 / positive regulation of protein kinase activity / protein-RNA complex assembly / regulation of translational fidelity / translation elongation factor activity / ribosomal subunit export from nucleus / translation regulator activity / translational termination / 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) / maturation of LSU-rRNA / cellular response to amino acid starvation / rescue of stalled ribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of apoptotic signaling pathway / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / maturation of SSU-rRNA / small-subunit processome / translational initiation / macroautophagy / protein kinase C binding / maintenance of translational fidelity / modification-dependent protein catabolic process / cytoplasmic stress granule / rRNA processing / protein tag activity / ribosome biogenesis / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / rRNA binding / negative regulation of translation / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / positive regulation of protein phosphorylation / G protein-coupled receptor signaling pathway / negative regulation of gene expression / response to antibiotic / GTPase activity / mRNA binding / ubiquitin protein ligase binding / nucleolus / GTP binding / mitochondrion / RNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.04 Å | ||||||
![]() | Milicevic, N. / Jenner, L. / Myasnikov, A. / Yusupov, M. / Yusupova, G. | ||||||
Funding support | ![]()
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![]() | ![]() Title: 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: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 4.6 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 16594MC ![]() 8ccsC ![]() 8cdlC ![]() 8cehC ![]() 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 ![]() |
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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 , 7 types, 7 molecules 578AaDDYg
#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) ![]() ![]() |
#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 ... , 41 types, 41 molecules ABCDEEEEeFFFGGGHHHIIIJJJKKKLLLMMMNNNOOOPPPQ...
-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 , 7 types, 1388 molecules ![](data/chem/img/ZN.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/SPD.gif)
![](data/chem/img/K.gif)
![](data/chem/img/GDP.gif)
![](data/chem/img/SO1.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/SPD.gif)
![](data/chem/img/K.gif)
![](data/chem/img/GDP.gif)
![](data/chem/img/SO1.gif)
![](data/chem/img/HOH.gif)
#85: Chemical | ChemComp-ZN / #86: Chemical | ChemComp-MG / #87: Chemical | ChemComp-SPD / #88: Chemical | ChemComp-K / #89: Chemical | ChemComp-GDP / | #90: Chemical | ChemComp-SO1 / [ | #91: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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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
Component | Name: 80S Saccharomyces cerevisiae ribosome in complex with eEF2.sordarin and ligands Type: RIBOSOME / Entity ID: #1-#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: ![]() |
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: 1.4/v9 / Classification: model building / URL: https://www.rbvi.ucsf.edu/chimerax/ / Os: Windows / Type: package |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3D reconstruction | Resolution: 2.04 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 55762 / Symmetry type: POINT |