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Yorodumi- PDB-6mtd: Rabbit 80S ribosome with eEF2 and SERBP1 (unrotated state with 40... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 6mtd | ||||||||||||
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| Title | Rabbit 80S ribosome with eEF2 and SERBP1 (unrotated state with 40S head swivel) | ||||||||||||
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Keywords | RIBOSOME / translation | ||||||||||||
| Function / homology | Function and homology informationL13a-mediated translational silencing of Ceruloplasmin expression / Translation initiation complex formation / Formation of a pool of free 40S subunits / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Protein hydroxylation ...L13a-mediated translational silencing of Ceruloplasmin expression / Translation initiation complex formation / Formation of a pool of free 40S subunits / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Protein hydroxylation / Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / Formation of a pool of free 40S subunits / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Major pathway of rRNA processing in the nucleolus and cytosol / SRP-dependent cotranslational protein targeting to membrane / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / Major pathway of rRNA processing in the nucleolus and cytosol / Formation of a pool of free 40S subunits / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / RHO GTPases Activate Formins / Major pathway of rRNA processing in the nucleolus and cytosol / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / SRP-dependent cotranslational protein targeting to membrane / 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) / Separation of Sister Chromatids / TORC2 complex binding / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / cytoplasmic side of rough endoplasmic reticulum membrane / Ribosomal scanning and start codon recognition / Translation initiation complex formation / SARS-CoV-1 modulates host translation machinery / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / Response of EIF2AK4 (GCN2) to amino acid deficiency / SRP-dependent cotranslational protein targeting to membrane / positive regulation of signal transduction by p53 class mediator / Viral mRNA Translation / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / 90S preribosome / Major pathway of rRNA processing in the nucleolus and cytosol / phagocytic cup / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / 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) / rough endoplasmic reticulum / ribosomal small subunit export from nucleus / translation regulator activity / gastrulation / translation initiation factor binding / MDM2/MDM4 family protein binding / cytosolic ribosome / stress granule assembly / class I DNA-(apurinic or apyrimidinic site) endonuclease activity / DNA-(apurinic or apyrimidinic site) lyase / ribosomal large subunit biogenesis / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / positive regulation of apoptotic signaling pathway / erythrocyte differentiation / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / maintenance of translational fidelity / mRNA 5'-UTR binding / Regulation of expression of SLITs and ROBOs / spindle / cytoplasmic ribonucleoprotein granule / rRNA processing / antimicrobial humoral immune response mediated by antimicrobial peptide / rhythmic process / positive regulation of canonical Wnt signaling pathway / ribosome biogenesis / large ribosomal subunit / regulation of translation / ribosome binding / ribosomal small subunit biogenesis Similarity search - Function | ||||||||||||
| Biological species | ![]() | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||||||||
Authors | Brown, A. / Baird, M.R. / Yip, M.C.J. / Murray, J. / Shao, S. | ||||||||||||
Citation | Journal: Elife / Year: 2018Title: Structures of translationally inactive mammalian ribosomes. Authors: Alan Brown / Matthew R Baird / Matthew Cj Yip / Jason Murray / Sichen Shao / ![]() Abstract: The cellular levels and activities of ribosomes directly regulate gene expression during numerous physiological processes. The mechanisms that globally repress translation are incompletely understood. ...The cellular levels and activities of ribosomes directly regulate gene expression during numerous physiological processes. The mechanisms that globally repress translation are incompletely understood. Here, we use electron cryomicroscopy to analyze inactive ribosomes isolated from mammalian reticulocytes, the penultimate stage of red blood cell differentiation. We identify two types of ribosomes that are translationally repressed by protein interactions. The first comprises ribosomes sequestered with elongation factor 2 (eEF2) by SERPINE mRNA binding protein 1 (SERBP1) occupying the ribosomal mRNA entrance channel. The second type are translationally repressed by a novel ribosome-binding protein, interferon-related developmental regulator 2 (IFRD2), which spans the P and E sites and inserts a C-terminal helix into the mRNA exit channel to preclude translation. IFRD2 binds ribosomes with a tRNA occupying a noncanonical binding site, the 'Z site', on the ribosome. These structures provide functional insights into how ribosomal interactions may suppress translation to regulate gene expression. | ||||||||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6mtd.cif.gz | 4.9 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb6mtd.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 6mtd.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6mtd_validation.pdf.gz | 1.7 MB | Display | wwPDB validaton report |
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| Full document | 6mtd_full_validation.pdf.gz | 2 MB | Display | |
| Data in XML | 6mtd_validation.xml.gz | 413.2 KB | Display | |
| Data in CIF | 6mtd_validation.cif.gz | 679.7 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/mt/6mtd ftp://data.pdbj.org/pub/pdb/validation_reports/mt/6mtd | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9240MC ![]() 9234C ![]() 9235C ![]() 9236C ![]() 9237C ![]() 9239C ![]() 9241C ![]() 9242C ![]() 6mtbC ![]() 6mtcC ![]() 6mteC C: citing same article ( M: map data used to model this data |
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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 , 4 types, 4 molecules 5789
| #1: RNA chain | Mass: 1167366.125 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #2: RNA chain | Mass: 38691.914 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #3: RNA chain | Mass: 48559.699 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #51: RNA chain | Mass: 548241.438 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
+Protein , 77 types, 77 molecules ABCDEFGHIJLMNOPQRSTUVWXYZabcde...
-Protein/peptide , 3 types, 3 molecules lnw
| #40: Protein/peptide | Mass: 6324.579 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #42: Protein/peptide | Mass: 3473.451 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #50: Protein/peptide | Mass: 3083.312 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 3 types, 306 molecules 




| #85: Chemical | ChemComp-MG / #86: Chemical | ChemComp-ZN / #87: Chemical | ChemComp-GDP / | |
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-Details
| Has protein modification | 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: Rabbit 80S ribosome with eEF2 and SERBP1 (unrotated state with head swivel) Type: RIBOSOME / Entity ID: #1-#84 / Source: NATURAL |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Film material: CARBON |
| Vitrification | Instrument: FEI VITROBOT MARK II / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
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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 / Cs: 2.7 mm |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Average exposure time: 1.1 sec. / Electron dose: 40 e/Å2 / Detector mode: INTEGRATING / Film or detector model: FEI FALCON II (4k x 4k) |
| Image scans | Movie frames/image: 17 / Used frames/image: 1-17 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 146801 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: OTHER / Space: REAL | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 5LZV Accession code: 5LZV / Source name: PDB / Type: experimental model |
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