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Yorodumi- PDB-7k53: Pre-translocation +1-frameshifting(CCC-A) complex (Structure I-FS) -
+ Open data
Open data
- Basic information
Basic information
| Entry | Database: PDB / ID: 7k53 | ||||||||||||
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| Title | Pre-translocation +1-frameshifting(CCC-A) complex (Structure I-FS) | ||||||||||||
|  Components | 
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|  Keywords | RIBOSOME / tRNA / TRANSLATION | ||||||||||||
| Function / homology |  Function and homology information negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis ...negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / transcriptional attenuation / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity / translational termination / negative regulation of cytoplasmic translation / four-way junction DNA binding / DnaA-L2 complex / translation repressor activity / negative regulation of translational initiation / regulation of mRNA stability / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / assembly of large subunit precursor of preribosome / positive regulation of RNA splicing / ribosome assembly / regulation of DNA-templated transcription elongation / transcription elongation factor complex / cytosolic ribosome assembly / response to reactive oxygen species / DNA endonuclease activity / transcription antitermination / translational initiation / regulation of cell growth / DNA-templated transcription termination / response to radiation / maintenance of translational fidelity / mRNA 5'-UTR binding / ribosome biogenesis / large ribosomal subunit / regulation of translation / ribosome binding / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / small ribosomal subunit rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / membrane / cytoplasm / cytosol Similarity search - Function | ||||||||||||
| Biological species |   Escherichia coli (E. coli) | ||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||||||||
|  Authors | Demo, G. / Loveland, A.B. / Svidritskiy, E. / Gamper, H.B. / Hou, Y.M. / Korostelev, A.A. | ||||||||||||
| Funding support |  United States,  Czech Republic, 3items 
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|  Citation |  Journal: Nat Commun / Year: 2021 Title: Structural basis for +1 ribosomal frameshifting during EF-G-catalyzed translocation. Authors: Gabriel Demo / Howard B Gamper / Anna B Loveland / Isao Masuda / Christine E Carbone / Egor Svidritskiy / Ya-Ming Hou / Andrei A Korostelev /    Abstract: Frameshifting of mRNA during translation provides a strategy to expand the coding repertoire of cells and viruses. How and where in the elongation cycle +1-frameshifting occurs remains poorly ...Frameshifting of mRNA during translation provides a strategy to expand the coding repertoire of cells and viruses. How and where in the elongation cycle +1-frameshifting occurs remains poorly understood. We describe seven ~3.5-Å-resolution cryo-EM structures of 70S ribosome complexes, allowing visualization of elongation and translocation by the GTPase elongation factor G (EF-G). Four structures with a + 1-frameshifting-prone mRNA reveal that frameshifting takes place during translocation of tRNA and mRNA. Prior to EF-G binding, the pre-translocation complex features an in-frame tRNA-mRNA pairing in the A site. In the partially translocated structure with EF-G•GDPCP, the tRNA shifts to the +1-frame near the P site, rendering the freed mRNA base to bulge between the P and E sites and to stack on the 16S rRNA nucleotide G926. The ribosome remains frameshifted in the nearly post-translocation state. Our findings demonstrate that the ribosome and EF-G cooperate to induce +1 frameshifting during tRNA-mRNA translocation. | ||||||||||||
| History | 
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- Structure visualization
Structure visualization
| Movie | 
 
  Movie viewer | 
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| Structure viewer | Molecule:  Molmil  Jmol/JSmol | 
- Downloads & links
Downloads & links
- Download
Download
| PDBx/mmCIF format |  7k53.cif.gz | 3.2 MB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb7k53.ent.gz | Display |  PDB format | |
| PDBx/mmJSON format |  7k53.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  7k53_validation.pdf.gz | 1.4 MB | Display |  wwPDB validaton report | 
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| Full document |  7k53_full_validation.pdf.gz | 1.5 MB | Display | |
| Data in XML |  7k53_validation.xml.gz | 196.4 KB | Display | |
| Data in CIF |  7k53_validation.cif.gz | 354.7 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/k5/7k53  ftp://data.pdbj.org/pub/pdb/validation_reports/k5/7k53 | HTTPS FTP | 
-Related structure data
| Related structure data |  22672MC  7k50C  7k51C  7k52C  7k54C  7k55C  7lv0C M: map data used to model this data C: citing same article ( | 
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| Similar structure data | 
- Links
Links
- Assembly
Assembly
| Deposited unit |  
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| 1 | 
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- Components
Components
+50S ribosomal protein  ... , 32 types, 32 molecules bcdefghijklmnopqrstuvwxyzABCDEFa                               
-30S ribosomal protein  ... , 20 types, 20 molecules GHIJKLMNOPQRSTUVWXYZ                   
| #32: Protein | Mass: 25015.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7V0 | 
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| #33: Protein | Mass: 23078.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7V3 | 
| #34: Protein | Mass: 23383.002 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7V8 | 
| #35: Protein | Mass: 16532.088 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7W1 | 
| #36: Protein | Mass: 11669.371 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P02358 | 
| #37: Protein | Mass: 16861.523 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P02359 | 
| #38: Protein | Mass: 14015.361 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7W7 | 
| #39: Protein | Mass: 14554.882 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7X3 | 
| #40: Protein | Mass: 11196.988 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7R5 | 
| #41: Protein | Mass: 12388.068 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7R9 | 
| #42: Protein | Mass: 13636.961 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7S3 | 
| #43: Protein | Mass: 12625.753 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7S9 | 
| #44: Protein | Mass: 11475.364 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0AG59 | 
| #45: Protein | Mass: 10159.621 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0ADZ4 | 
| #46: Protein | Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7T3 | 
| #47: Protein | Mass: 9263.946 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0AG63 | 
| #48: Protein | Mass: 7606.768 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7T7 | 
| #49: Protein | Mass: 9057.626 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7U3 | 
| #50: Protein | Mass: 9506.190 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P0A7U7 | 
| #51: Protein | Mass: 7763.073 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: UniProt: P68679 | 
-RNA chain , 6 types, 7 molecules 3125647      
| #53: RNA chain | Mass: 498725.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: GenBank: 1126835768 | ||||
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| #54: RNA chain | Mass: 941305.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: GenBank: 802133627 | ||||
| #55: RNA chain | Mass: 38813.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: GenBank: 1266961702 | ||||
| #56: RNA chain | Mass: 24802.785 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: GenBank: 1275521620 #57: RNA chain |  | Mass: 5842.595 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.)    Escherichia coli (strain K12) (bacteria) #58: RNA chain |  | Mass: 24862.746 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural)    Escherichia coli (strain K12) (bacteria) / Strain: MRE600 / References: GenBank: 1848949880 | 
-Non-polymers , 1 types, 1 molecules 
| #59: Chemical | ChemComp-FME / | 
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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 | 
- Sample preparation
Sample preparation
| Component | Name: Pre-translocation +1-frameshifting(CCC-A) ribosome complex Type: RIBOSOME / Entity ID: #1-#58 / Source: NATURAL | |||||||||||||||||||||||||||||||||||
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| Molecular weight | Value: 1.6 MDa / Experimental value: NO | |||||||||||||||||||||||||||||||||||
| Source (natural) | Organism:   Escherichia coli (strain K12) (bacteria) / Strain: MRE600 | |||||||||||||||||||||||||||||||||||
| Buffer solution | pH: 7.5 | |||||||||||||||||||||||||||||||||||
| Buffer component | 
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| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | |||||||||||||||||||||||||||||||||||
| Specimen support | Details: glow discharged with 25mA negative polarity in PELCO easiGlow unit Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1 | |||||||||||||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 95 % / Chamber temperature: 278 K / Details: Blotting force 9, blotted for 4 seconds | 
- Electron microscopy imaging
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: 130000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 800 nm / Alignment procedure: COMA FREE | 
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER | 
| Image recording | Average exposure time: 7.2 sec. / Electron dose: 47.5 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of real images: 2591 | 
| Image scans | Movie frames/image: 36 / Used frames/image: 1-36 | 
- Processing
Processing
| EM software | 
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 164504 | |||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 12108 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL / Target criteria: correlation coefficient | |||||||||||||||||||||||||||||||||
| Atomic model building | 
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