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- PDB-7ug7: 70S ribosome complex in an intermediate state of translocation bo... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7ug7 | ||||||||||||
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Title | 70S ribosome complex in an intermediate state of translocation bound to EF-G(GDP) stalled by Argyrin B | ||||||||||||
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![]() | RIBOSOME / Translocation / EF-G / Argyrin | ||||||||||||
Function / homology | ![]() ribosome disassembly / negative regulation of cytoplasmic translational initiation / translational elongation / guanosine tetraphosphate binding / stringent response / misfolded RNA binding / Group I intron splicing / RNA folding / positive regulation of ribosome biogenesis / translation elongation factor activity ...ribosome disassembly / negative regulation of cytoplasmic translational initiation / translational elongation / guanosine tetraphosphate binding / stringent response / misfolded RNA binding / Group I intron splicing / RNA folding / positive regulation of ribosome biogenesis / translation elongation factor activity / translational termination / DnaA-L2 complex / negative regulation of translational initiation / negative regulation of DNA-templated DNA replication initiation / translational initiation / ribosome assembly / mRNA regulatory element binding translation repressor activity / positive regulation of RNA splicing / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / transcription antitermination / regulation of cell growth / DNA-templated transcription termination / maintenance of translational fidelity / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / ribosomal large subunit assembly / mRNA 5'-UTR binding / large ribosomal subunit / ribosome binding / regulation of translation / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / transferase activity / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / tRNA binding / cytoplasmic translation / rRNA binding / negative regulation of translation / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / response to antibiotic / GTPase activity / mRNA binding / GTP binding / RNA binding / zinc ion binding / membrane / cytoplasm / cytosol Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.58 Å | ||||||||||||
![]() | Rundlet, E.J. / Wieland, M. / Holm, M. / Koller, T.O. / Blanchard, S.C. / Wilson, D.N. | ||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: The cyclic octapeptide antibiotic argyrin B inhibits translation by trapping EF-G on the ribosome during translocation. Authors: Maximiliane Wieland / Mikael Holm / Emily J Rundlet / Martino Morici / Timm O Koller / Tinashe P Maviza / Domen Pogorevc / Ilya A Osterman / Rolf Müller / Scott C Blanchard / Daniel N Wilson / ![]() ![]() ![]() Abstract: Argyrins are a family of naturally produced octapeptides that display promising antimicrobial activity against Pseudomonas aeruginosa. Argyrin B (ArgB) has been shown to interact with an elongated ...Argyrins are a family of naturally produced octapeptides that display promising antimicrobial activity against Pseudomonas aeruginosa. Argyrin B (ArgB) has been shown to interact with an elongated form of the translation elongation factor G (EF-G), leading to the suggestion that argyrins inhibit protein synthesis by interfering with EF-G binding to the ribosome. Here, using a combination of cryo-electron microscopy (cryo-EM) and single-molecule fluorescence resonance energy transfer (smFRET), we demonstrate that rather than interfering with ribosome binding, ArgB rapidly and specifically binds EF-G on the ribosome to inhibit intermediate steps of the translocation mechanism. Our data support that ArgB inhibits conformational changes within EF-G after GTP hydrolysis required for translocation and factor dissociation, analogous to the mechanism of fusidic acid, a chemically distinct antibiotic that binds a different region of EF-G. These findings shed light on the mechanism of action of the argyrin-class antibiotics on protein synthesis as well as the nature and importance of rate-limiting, intramolecular conformational events within the EF-G-bound ribosome during late-steps of translocation. | ||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 3.4 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 2 MB | Display | ![]() |
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Full document | ![]() | 2.1 MB | Display | |
Data in XML | ![]() | 236.9 KB | Display | |
Data in CIF | ![]() | 410.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 26486MC ![]() 7otcC C: citing same article ( M: map data used to model this data |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-RNA chain , 6 types, 6 molecules 16235DtPtmR
#1: RNA chain | Mass: 497390.906 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#22: RNA chain | Mass: 941811.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#23: RNA chain | Mass: 38790.090 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#57: RNA chain | Mass: 24848.943 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#58: RNA chain | Mass: 24733.969 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
#59: RNA chain | Mass: 19128.443 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-30S ribosomal protein ... , 20 types, 20 molecules SBSCSDSESFSGSHSISJSKSLSMSNSOSPSQSRSSSTSU
#2: Protein | Mass: 26795.695 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#3: Protein | Mass: 26031.316 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#4: Protein | Mass: 23514.199 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#5: Protein | Mass: 17629.398 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#6: Protein | Mass: 15727.512 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#7: Protein | Mass: 20055.156 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#8: Protein | Mass: 14146.557 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#9: Protein | Mass: 14886.270 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#10: Protein | Mass: 11755.597 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#11: Protein | Mass: 13870.975 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#12: Protein | Mass: 13814.249 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#13: Protein | Mass: 13128.467 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#14: Protein | Mass: 11606.560 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#15: Protein | Mass: 10290.816 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#16: Protein | Mass: 9207.572 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#17: Protein | Mass: 9724.491 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#18: Protein | Mass: 9005.472 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#19: Protein | Mass: 10455.355 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#20: Protein | Mass: 9708.464 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#21: Protein | Mass: 8524.039 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
+50S ribosomal protein ... , 31 types, 31 molecules LALBLCLDLELFLILJLKLMLNLOLPLQLRLSLTLVLWLXLYLaLbLcLdLeLfLgLhLiLj
-Protein , 2 types, 2 molecules LUEF
#41: Protein | Mass: 11586.374 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#56: Protein | Mass: 77261.719 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-Protein/peptide , 1 types, 1 molecules B
#60: Protein/peptide | Mass: 874.962 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Non-polymers , 7 types, 422 molecules ![](data/chem/img/PUT.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/SPD.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/GDP.gif)
![](data/chem/img/FME.gif)
![](data/chem/img/PHE.gif)
![](data/chem/img/MG.gif)
![](data/chem/img/SPD.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/GDP.gif)
![](data/chem/img/FME.gif)
![](data/chem/img/PHE.gif)
#61: Chemical | ChemComp-PUT / #62: Chemical | ChemComp-MG / #63: Chemical | #64: Chemical | #65: Chemical | ChemComp-GDP / | #66: Chemical | ChemComp-FME / | #67: Chemical | ChemComp-PHE / | |
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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 |
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Sample preparation
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Molecular weight |
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Source (natural) |
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||
Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3 | ||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 130000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 68 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2851902 |
EM imaging optics | Energyfilter name: GIF Bioquantum |
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Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 1454398 | ||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 2.58 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 35220 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL / Target criteria: LSQ | ||||||||||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 7N2C Accession code: 7N2C / Source name: PDB / Type: experimental model |