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Open data
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Basic information
| Entry | Database: PDB / ID: 7zjx | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Title | Rabbit 80S ribosome programmed with SECIS and SBP2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Keywords | RIBOSOME / Selenocysteine / recoding / 80S | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationforebrain neuron development / Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / negative regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / selenocysteine insertion sequence binding / selenocysteine incorporation / 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 ...forebrain neuron development / Translation initiation complex formation / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / negative regulation of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / selenocysteine insertion sequence binding / selenocysteine incorporation / 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) / striatum development / ribosomal subunit / mRNA stabilization / RNA catabolic process / negative regulation of RNA splicing / negative regulation of bicellular tight junction assembly / rRNA modification in the nucleus and cytosol / Formation of the ternary complex, and subsequently, the 43S complex / laminin receptor activity / Ribosomal scanning and start codon recognition / Translation initiation complex formation / organelle membrane / TOR signaling / Protein hydroxylation / SARS-CoV-1 modulates host translation machinery / cellular response to ethanol / mTORC1-mediated signalling / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / SRP-dependent cotranslational protein targeting to membrane / Response of EIF2AK4 (GCN2) to amino acid deficiency / positive regulation of signal transduction by p53 class mediator / Viral mRNA Translation / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / 90S preribosome / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / ribonucleoprotein complex binding / Major pathway of rRNA processing in the nucleolus and cytosol / protein-RNA complex assembly / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / maturation of LSU-rRNA / Nuclear events stimulated by ALK signaling in cancer / laminin binding / rough endoplasmic reticulum / translation regulator activity / ribosomal small subunit export from nucleus / gastrulation / MDM2/MDM4 family protein binding / cytosolic ribosome / 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 / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / mRNA 3'-UTR binding / maturation of SSU-rRNA / small-subunit processome / response to insulin / GABA-ergic synapse / 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 / positive regulation of canonical Wnt signaling pathway / glucose homeostasis / heparin binding / regulation of translation / presynapse / large ribosomal subunit / ribosome binding / virus receptor activity / cell body / ribosomal small subunit biogenesis / ribosomal small subunit assembly / 5S rRNA binding / ribosomal large subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / defense response to Gram-negative bacterium / perikaryon / SARS-CoV-2 modulates host translation machinery / killing of cells of another organism / cytosolic large ribosomal subunit / cytoplasmic translation / cell differentiation / tRNA binding / negative regulation of translation Similarity search - Function | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human)![]() Cricket paralysis virus![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Hilal, T. / Simonovic, M. / Spahn, C.M.T. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | Germany, United States, 2items
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Citation | Journal: Science / Year: 2022Title: Structure of the mammalian ribosome as it decodes the selenocysteine UGA codon. Authors: Tarek Hilal / Benjamin Y Killam / Milica Grozdanović / Malgorzata Dobosz-Bartoszek / Justus Loerke / Jörg Bürger / Thorsten Mielke / Paul R Copeland / Miljan Simonović / Christian M T Spahn / ![]() Abstract: The elongation of eukaryotic selenoproteins relies on a poorly understood process of interpreting in-frame UGA stop codons as selenocysteine (Sec). We used cryo-electron microscopy to visualize Sec ...The elongation of eukaryotic selenoproteins relies on a poorly understood process of interpreting in-frame UGA stop codons as selenocysteine (Sec). We used cryo-electron microscopy to visualize Sec UGA recoding in mammals. A complex between the noncoding Sec-insertion sequence (SECIS), SECIS-binding protein 2 (SBP2), and 40 ribosomal subunit enables Sec-specific elongation factor eEFSec to deliver Sec. eEFSec and SBP2 do not interact directly but rather deploy their carboxyl-terminal domains to engage with the opposite ends of the SECIS. By using its Lys-rich and carboxyl-terminal segments, the ribosomal protein eS31 simultaneously interacts with Sec-specific transfer RNA (tRNA) and SBP2, which further stabilizes the assembly. eEFSec is indiscriminate toward l-serine and facilitates its misincorporation at Sec UGA codons. Our results support a fundamentally distinct mechanism of Sec UGA recoding in eukaryotes from that in bacteria. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 7zjx.cif.gz | 4.9 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb7zjx.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 7zjx.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7zjx_validation.pdf.gz | 2.5 MB | Display | wwPDB validaton report |
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| Full document | 7zjx_full_validation.pdf.gz | 2.9 MB | Display | |
| Data in XML | 7zjx_validation.xml.gz | 423.8 KB | Display | |
| Data in CIF | 7zjx_validation.cif.gz | 683 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/zj/7zjx ftp://data.pdbj.org/pub/pdb/validation_reports/zj/7zjx | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 14752MC ![]() 7zjwC M: map data used to model this data C: citing same article ( |
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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
-Protein , 7 types, 7 molecules BLGLaLxSDSGSV
| #1: Protein | Mass: 95640.016 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: SECISBP2, SBP2 / Production host: ![]() |
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| #9: Protein | Mass: 34523.863 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #28: Protein | Mass: 17768.246 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #47: Protein | Mass: 24875.410 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #52: Protein | Mass: 18004.041 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #55: Protein | Mass: 35115.652 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #67: Protein | Mass: 18933.846 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-RNA chain , 6 types, 6 molecules IL5L7L8SS2
| #2: RNA chain | Mass: 52131.645 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Cricket paralysis virus |
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| #3: RNA chain | Mass: 1557505.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #4: RNA chain | Mass: 38851.871 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #5: RNA chain | Mass: 50809.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #48: RNA chain | Mass: 275721.688 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
| #49: RNA chain | Mass: 603814.125 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
+60S ribosomal Protein ... , 34 types, 34 molecules LDLELFLHLILJLKLMLOLPLRLSLTLULVLWLXLYLcLdLeLfLgLiLjLkLlLnLoLp...
-Ribosomal protein ... , 7 types, 7 molecules LLLQLZLbLhLmSQ
| #14: Protein | Mass: 24643.057 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #18: Protein | Mass: 24207.285 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #27: Protein | Mass: 17825.111 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #29: Protein | Mass: 17303.363 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #35: Protein | Mass: 15898.932 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #40: Protein | Mass: 11111.032 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
| #62: Protein | Mass: 22913.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
+40S ribosomal protein ... , 29 types, 29 molecules SBSCSESFSHSLSMSNSOSPSRSSSTSUSWSXSYSZSaSbScSdSeSfSgShSiSjSk
-Non-polymers , 1 types, 8 molecules 
| #84: Chemical | ChemComp-ZN / |
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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
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| Molecular weight | Value: 3.5 MDa / Experimental value: NO | ||||||||||||||||||||||||||||||||||||
| Source (natural) |
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| Source (recombinant) |
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| Buffer solution | pH: 7.6 | ||||||||||||||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK II / Cryogen name: ETHANE / Humidity: 100 % |
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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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN |
| Image recording | Electron dose: 25 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 6908 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 179421 | ||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 39295 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: RIGID BODY FIT / Space: REAL | ||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7O7Y Accession code: 7O7Y / Source name: PDB / Type: experimental model |
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About Yorodumi




Homo sapiens (human)
Cricket paralysis virus
Germany,
United States, 2items
Citation


PDBj







































FIELD EMISSION GUN
