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Yorodumi- 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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Keywords | RIBOSOME / Translocation / EF-G / Argyrin | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationribosome disassembly / guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / stringent response / translational elongation / misfolded RNA binding / Group I intron splicing / RNA folding / translation elongation factor activity / positive regulation of ribosome biogenesis ...ribosome disassembly / guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / stringent response / translational elongation / misfolded RNA binding / Group I intron splicing / RNA folding / translation elongation factor activity / positive regulation of ribosome biogenesis / translational termination / DnaA-L2 complex / negative regulation of translational initiation / 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 / cytosolic ribosome assembly / ribosome assembly / transcription antitermination / regulation of cell growth / translational initiation / DNA-templated transcription termination / maintenance of translational fidelity / mRNA 5'-UTR binding / large ribosomal subunit / regulation of translation / ribosome binding / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / small ribosomal subunit rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / response to antibiotic / GTPase activity / mRNA binding / GTP binding / RNA binding / zinc ion binding / membrane / cytoplasm / cytosol Similarity search - Function | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological species | ![]() ![]() Actinoplanes sp. (bacteria) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.58 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Rundlet, E.J. / Wieland, M. / Holm, M. / Koller, T.O. / Blanchard, S.C. / Wilson, D.N. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | United States, Sweden, 3items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2022Title: 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 | 7ug7.cif.gz | 3.4 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb7ug7.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 7ug7.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7ug7_validation.pdf.gz | 1.9 MB | Display | wwPDB validaton report |
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| Full document | 7ug7_full_validation.pdf.gz | 2 MB | Display | |
| Data in XML | 7ug7_validation.xml.gz | 237.3 KB | Display | |
| Data in CIF | 7ug7_validation.cif.gz | 411.2 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ug/7ug7 ftp://data.pdbj.org/pub/pdb/validation_reports/ug/7ug7 | 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 F&H Search |
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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) Actinoplanes sp. (bacteria) |
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-Non-polymers , 7 types, 422 molecules 












| #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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| 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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| 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| 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
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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 |
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About Yorodumi





United States,
Sweden, 3items
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FIELD EMISSION GUN
