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Open data
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Basic information
| Entry | Database: PDB / ID: 4v7f | |||||||||
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| Title | Arx1 pre-60S particle. | |||||||||
 Components | 
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 Keywords | RIBOSOME / 60S biogenesis / 5S rRNA | |||||||||
| Function / homology |  Function and homology informationprotein-RNA complex remodeling / exonucleolytic trimming to generate mature 5'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Hydrolases / positive regulation of ATP-dependent activity / rRNA primary transcript binding / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / pre-mRNA 5'-splice site binding / maturation of 5.8S rRNA / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / SRP-dependent cotranslational protein targeting to membrane ...protein-RNA complex remodeling / exonucleolytic trimming to generate mature 5'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / Hydrolases / positive regulation of ATP-dependent activity / rRNA primary transcript binding / maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / pre-mRNA 5'-splice site binding / maturation of 5.8S rRNA / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / ribosomal large subunit binding / 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 / Formation of a pool of free 40S subunits / preribosome, large subunit precursor / ATPase activator activity / nuclear-transcribed mRNA catabolic process / L13a-mediated translational silencing of Ceruloplasmin expression / ribosomal large subunit export from nucleus / translational elongation / ribosomal subunit export from nucleus / regulation of translational fidelity / protein-RNA complex assembly / maturation of LSU-rRNA / translation initiation factor activity / Neutrophil degranulation / assembly of large subunit precursor of preribosome / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / cytosolic ribosome assembly / maturation of SSU-rRNA / small-subunit processome / macroautophagy / maintenance of translational fidelity / metallopeptidase activity / rRNA processing / ribosome biogenesis / ATPase binding / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / GTPase activity / mRNA binding / GTP binding / nucleolus / proteolysis / RNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm / cytosol Similarity search - Function  | |||||||||
| Biological species | ![]()  | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 8.7 Å | |||||||||
 Authors | Leidig, C. / Thoms, M. / Holdermann, I. / Bradatsch, B. / Berninghausen, O. / Bange, G. / Sinning, I. / Hurt, E. / Beckmann, R. | |||||||||
 Citation |  Journal: Nat Commun / Year: 2014Title: 60S ribosome biogenesis requires rotation of the 5S ribonucleoprotein particle. Authors: Christoph Leidig / Matthias Thoms / Iris Holdermann / Bettina Bradatsch / Otto Berninghausen / Gert Bange / Irmgard Sinning / Ed Hurt / Roland Beckmann / ![]() Abstract: During eukaryotic ribosome biogenesis, nascent ribosomal RNA (rRNA) forms pre-ribosomal particles containing ribosomal proteins and assembly factors. Subsequently, these immature rRNAs are processed ...During eukaryotic ribosome biogenesis, nascent ribosomal RNA (rRNA) forms pre-ribosomal particles containing ribosomal proteins and assembly factors. Subsequently, these immature rRNAs are processed and remodelled. Little is known about the premature assembly states of rRNAs and their structural rearrangement during ribosome biogenesis. Using cryo-EM we characterize a pre-60S particle, where the 5S rRNA and its associated ribosomal proteins L18 and L5 (5S ribonucleoprotein (RNP)) are rotated by almost 180° when compared with the mature subunit. Consequently, neighbouring 25S rRNA helices that protrude from the base of the central protuberance are deformed. This altered topology is stabilized by nearby assembly factors (Rsa4 and Nog1), which were identified by fitting their three-dimensional structures into the cryo-EM density. We suggest that the 5S RNP performs a semicircular movement during 60S biogenesis to adopt its final position, fulfilling a chaperone-like function in guiding the flanking 25S rRNA helices of the central protuberance to their final topology.  | |||||||||
| History | 
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Structure visualization
| Movie | 
 
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| Structure viewer | Molecule:  Molmil Jmol/JSmol | 
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Downloads & links
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Download
| PDBx/mmCIF format |  4v7f.cif.gz | 1.9 MB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb4v7f.ent.gz | 805.7 KB | Display |  PDB format | 
| PDBx/mmJSON format |  4v7f.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  4v7f_validation.pdf.gz | 1.2 MB | Display |  wwPDB validaton report | 
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| Full document |  4v7f_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML |  4v7f_validation.xml.gz | 199.3 KB | Display | |
| Data in CIF |  4v7f_validation.cif.gz | 375 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/v7/4v7f ftp://data.pdbj.org/pub/pdb/validation_reports/v7/4v7f | HTTPS FTP  | 
-Related structure data
| Related structure data | ![]() 2528MC ![]() 4nwbC 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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| 1 | 
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Components
-RNA chain , 3 types, 3 molecules 123  
| #1: RNA chain |   Mass: 1097493.875 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
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| #2: RNA chain |   Mass: 50682.922 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
| #3: RNA chain |   Mass: 38951.105 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
+60S ribosomal protein  ... , 37 types, 37 molecules ABCDEFGHIJKLMNOPQRSTUVWXYZabcd...                              
-Protein , 5 types, 5 molecules lmnoq    
| #41: Protein |   Mass: 65290.336 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
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| #42: Protein |   Mass: 26476.605 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
| #43: Protein |   Mass: 27098.012 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
| #44: Protein |   Mass: 74531.227 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
| #46: Protein |   Mass: 57106.781 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
-Ribosome biogenesis protein  ... , 2 types, 3 molecules prs  
| #45: Protein |   Mass: 24027.650 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
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| #47: Protein | Mass: 36621.074 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)  ![]()  | 
-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 | 
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| 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 / Date: Nov 12, 2012 | 
| Electron gun | Electron source:  FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM | 
| Electron lens | Mode: BRIGHT FIELD | 
| Image recording | Electron dose: 20 e/Å2 / Film or detector model: TVIPS TEMCAM-F416 (4k x 4k) | 
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | 
| Radiation wavelength | Relative weight: 1 | 
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Processing
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
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| 3D reconstruction | Resolution: 8.7 Å / Num. of particles: 75887 / Nominal pixel size: 1.0605 Å / Actual pixel size: 1.0605 Å / Symmetry type: POINT | ||||||||||||
| Atomic model building | PDB-ID: 3U5D![]() 3u5d Accession code: 3U5D / Source name: PDB / Type: experimental model  | ||||||||||||
| Refinement step | Cycle: LAST
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