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Yorodumi- PDB-6ddg: Structure of the 50S ribosomal subunit from Methicillin Resistant... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 6ddg | ||||||
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| Title | Structure of the 50S ribosomal subunit from Methicillin Resistant Staphylococcus aureus in complex with the oxazolidinone antibiotic LZD-6 | ||||||
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Keywords | Ribosome/Antibiotic / antibiotic complex / linezolid / oxazolidinone / 50S / ribosome / Ribosome-Antibiotic complex | ||||||
| Function / homology | Function and homology informationlarge ribosomal subunit / transferase activity / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding ...large ribosomal subunit / transferase activity / 5S rRNA binding / ribosomal large subunit assembly / 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 / ribonucleoprotein complex / mRNA binding / RNA binding / cytoplasm Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||
Authors | Belousoff, M.J. / Venugopal, H. / Bamert, R.S. / Lithgow, T. | ||||||
| Funding support | Australia, 1items
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Citation | Journal: ChemMedChem / Year: 2019Title: cryoEM-Guided Development of Antibiotics for Drug-Resistant Bacteria. Authors: Matthew J Belousoff / Hari Venugopal / Alexander Wright / Samuel Seoner / Isabella Stuart / Chris Stubenrauch / Rebecca S Bamert / David W Lupton / Trevor Lithgow / ![]() Abstract: While the ribosome is a common target for antibiotics, challenges with crystallography can impede the development of new bioactives using structure-based drug design approaches. In this study we ...While the ribosome is a common target for antibiotics, challenges with crystallography can impede the development of new bioactives using structure-based drug design approaches. In this study we exploit common structural features present in linezolid-resistant forms of both methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) to redesign the antibiotic. Enabled by rapid and facile cryoEM structures, this process has identified (S)-2,2-dichloro-N-((3-(3-fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl)methyl)acetamide (LZD-5) and (S)-2-chloro-N-((3-(3-fluoro-4-morpholinophenyl)-2-oxooxazolidin-5-yl)methyl) acetamide (LZD-6), which inhibit the ribosomal function and growth of linezolid-resistant MRSA and VRE. The strategy discussed highlights the potential for cryoEM to facilitate the development of novel bioactive materials. | ||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6ddg.cif.gz | 1.7 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb6ddg.ent.gz | 1.3 MB | Display | PDB format |
| PDBx/mmJSON format | 6ddg.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 6ddg_validation.pdf.gz | 1.1 MB | Display | wwPDB validaton report |
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| Full document | 6ddg_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 6ddg_validation.xml.gz | 131.9 KB | Display | |
| Data in CIF | 6ddg_validation.cif.gz | 221.5 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dd/6ddg ftp://data.pdbj.org/pub/pdb/validation_reports/dd/6ddg | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 7870MC ![]() 7867C ![]() 6dddC C: citing same article ( M: map data used to model this data |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
+50S ribosomal protein ... , 25 types, 25 molecules ABCDEFGHIJKLMNOPQRSVWXYZa
-RNA chain , 2 types, 2 molecules 12
| #26: RNA chain | Mass: 946696.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
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| #27: RNA chain | Mass: 36974.945 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Non-polymers , 1 types, 1 molecules 
| #28: Chemical | ChemComp-G6M / |
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-Details
| Has protein modification | 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
| Component | Name: 50S Ribosomal subunit from MRSA in complex with oxazolidinone LZD-5 Type: RIBOSOME / Entity ID: #1-#27 / Source: NATURAL | ||||||||||||||||||||||||
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| Molecular weight | Experimental value: NO | ||||||||||||||||||||||||
| Source (natural) | Organism: ![]() | ||||||||||||||||||||||||
| Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
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| Specimen | Conc.: 0.3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
| Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/1 | ||||||||||||||||||||||||
| Vitrification | Instrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 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: SPOT SCAN |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 50 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.13_2998 / Classification: refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 49223 / Algorithm: FOURIER SPACE / Num. of class averages: 1 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refinement | Stereochemistry target values: GeoStd + Monomer Library | ||||||||||||||||||||||||
| Refine LS restraints |
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