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Yorodumi- PDB-7sso: Pre translocation 70S ribosome with A/A and P/E tRNA (Structure II-A) -
+Open data
-Basic information
Entry | Database: PDB / ID: 7sso | |||||||||||||||
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Title | Pre translocation 70S ribosome with A/A and P/E tRNA (Structure II-A) | |||||||||||||||
Components |
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Keywords | RIBOSOME / Hybrid / Translocation | |||||||||||||||
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 / RNA-binding transcription regulator activity ...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 / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / translational termination / four-way junction DNA binding / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / negative regulation of translational initiation / regulation of mRNA stability / mRNA regulatory element binding translation repressor activity / ribosome assembly / assembly of large subunit precursor of preribosome / positive regulation of RNA splicing / transcription elongation factor complex / cytosolic ribosome assembly / regulation of DNA-templated transcription elongation / DNA endonuclease activity / response to reactive oxygen species / transcription antitermination / regulation of cell growth / translational initiation / DNA-templated transcription termination / maintenance of translational fidelity / response to radiation / mRNA 5'-UTR binding / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / large ribosomal subunit / ribosome biogenesis / ribosome binding / regulation of translation / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / transferase activity / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / molecular adaptor activity / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / DNA binding / RNA binding / zinc ion binding / membrane / cytosol / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | Escherichia coli K-12 (bacteria) | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||||||||
Authors | Carbone, C.E. / Korostelev, A.A. | |||||||||||||||
Funding support | Czech Republic, 4items
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Citation | Journal: Nat Commun / Year: 2021 Title: Time-resolved cryo-EM visualizes ribosomal translocation with EF-G and GTP. Authors: Christine E Carbone / Anna B Loveland / Howard B Gamper / Ya-Ming Hou / Gabriel Demo / Andrei A Korostelev / Abstract: During translation, a conserved GTPase elongation factor-EF-G in bacteria or eEF2 in eukaryotes-translocates tRNA and mRNA through the ribosome. EF-G has been proposed to act as a flexible motor that ...During translation, a conserved GTPase elongation factor-EF-G in bacteria or eEF2 in eukaryotes-translocates tRNA and mRNA through the ribosome. EF-G has been proposed to act as a flexible motor that propels tRNA and mRNA movement, as a rigid pawl that biases unidirectional translocation resulting from ribosome rearrangements, or by various combinations of motor- and pawl-like mechanisms. Using time-resolved cryo-EM, we visualized GTP-catalyzed translocation without inhibitors, capturing elusive structures of ribosome•EF-G intermediates at near-atomic resolution. Prior to translocation, EF-G binds near peptidyl-tRNA, while the rotated 30S subunit stabilizes the EF-G GTPase center. Reverse 30S rotation releases Pi and translocates peptidyl-tRNA and EF-G by ~20 Å. An additional 4-Å translocation initiates EF-G dissociation from a transient ribosome state with highly swiveled 30S head. The structures visualize how nearly rigid EF-G rectifies inherent and spontaneous ribosomal dynamics into tRNA-mRNA translocation, whereas GTP hydrolysis and Pi release drive EF-G dissociation. | |||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7sso.cif.gz | 3.2 MB | Display | PDBx/mmCIF format |
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PDB format | pdb7sso.ent.gz | Display | PDB format | |
PDBx/mmJSON format | 7sso.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7sso_validation.pdf.gz | 1.8 MB | Display | wwPDB validaton report |
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Full document | 7sso_full_validation.pdf.gz | 1.8 MB | Display | |
Data in XML | 7sso_validation.xml.gz | 205.9 KB | Display | |
Data in CIF | 7sso_validation.cif.gz | 369.3 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ss/7sso ftp://data.pdbj.org/pub/pdb/validation_reports/ss/7sso | HTTPS FTP |
-Related structure data
Related structure data | 25411MC 7ss9C 7ssdC 7sslC 7ssnC 7sswC 7st2C 7st6C 7st7C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-RNA chain , 6 types, 6 molecules 312546
#1: RNA chain | Mass: 498725.406 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 1126835768 |
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#2: RNA chain | Mass: 941305.250 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 802133627 |
#3: RNA chain | Mass: 38813.133 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 1266961702 |
#4: RNA chain | Mass: 24862.746 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: MRE600 / References: GenBank: 1848949880 |
#37: RNA chain | Mass: 11385.971 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Escherichia coli K-12 (bacteria) |
#38: RNA chain | Mass: 24802.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / References: GenBank: 1275521620 |
+50S ribosomal protein ... , 32 types, 32 molecules bcdefgahijklmnopqrstuvwxyzABCDEF
-30S ribosomal protein ... , 20 types, 20 molecules GHIJKLMNOPQRSTUVWXYZ
#39: Protein | Mass: 25015.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7V0 |
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#40: Protein | Mass: 23078.785 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7V3 |
#41: Protein | Mass: 23383.002 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7V8 |
#42: Protein | Mass: 16532.088 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7W1 |
#43: Protein | Mass: 11669.371 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P02358 |
#44: Protein | Mass: 16861.523 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P02359 |
#45: Protein | Mass: 14015.361 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7W7 |
#46: Protein | Mass: 14554.882 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7X3 |
#47: Protein | Mass: 11196.988 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7R5 |
#48: Protein | Mass: 12388.068 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7R9 |
#49: Protein | Mass: 13636.961 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7S3 |
#50: Protein | Mass: 12625.753 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7S9 |
#51: Protein | Mass: 11475.364 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0AG59 |
#52: Protein | Mass: 10159.621 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0ADZ4 |
#53: Protein | Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7T3 |
#54: Protein | Mass: 9263.946 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0AG63 |
#55: Protein | Mass: 7606.768 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7T7 |
#56: Protein | Mass: 9057.626 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7U3 |
#57: Protein | Mass: 9506.190 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P0A7U7 |
#58: Protein | Mass: 7763.073 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli K-12 (bacteria) / Strain: K12 / References: UniProt: P68679 |
-Non-polymers , 2 types, 2 molecules
#59: Chemical | ChemComp-FME / |
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#60: Chemical | ChemComp-PRO / |
-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
Component | Name: Pre translocation 70S ribosome with A/A and P/E tRNA (Structure II-A) Type: RIBOSOME / Entity ID: #1-#58 / Source: MULTIPLE SOURCES |
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Molecular weight | Value: 2.7 MDa / Experimental value: NO |
Source (natural) | Organism: Escherichia coli K-12 (bacteria) |
Source (recombinant) | Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-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 defocus max: 1500 nm / Nominal defocus min: 500 nm |
Image recording | Electron dose: 40.2 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 7257 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building |
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