+Open data
-Basic information
Entry | Database: PDB / ID: 3j5l | ||||||
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Title | Structure of the E. coli 50S subunit with ErmBL nascent chain | ||||||
Components |
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Keywords | RIBOSOME/ANTIBIOTIC / erythromycin / stalling / RIBOSOME-ANTIBIOTIC complex | ||||||
Function / homology | Function and homology information stringent response / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / translational termination / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation ...stringent response / transcriptional attenuation / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / positive regulation of ribosome biogenesis / negative regulation of cytoplasmic translation / translational termination / DnaA-L2 complex / translation repressor activity / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / ribosome assembly / assembly of large subunit precursor of preribosome / cytosolic ribosome assembly / response to reactive oxygen species / regulation of cell growth / DNA-templated transcription termination / response to radiation / mRNA 5'-UTR binding / large ribosomal subunit / ribosome binding / large ribosomal subunit rRNA binding / 5S rRNA binding / transferase activity / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / 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 / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | Escherichia coli (E. coli) Streptococcus sanguinis (bacteria) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.6 Å | ||||||
Authors | Arenz, S. / Ramu, H. / Gupta, P. / Berninghausen, O. / Beckmann, R. / Vazquez-Laslop, N. / Mankin, A.S. / Wilson, D.N. | ||||||
Citation | Journal: Nat Commun / Year: 2014 Title: Molecular basis for erythromycin-dependent ribosome stalling during translation of the ErmBL leader peptide. Authors: Stefan Arenz / Haripriya Ramu / Pulkit Gupta / Otto Berninghausen / Roland Beckmann / Nora Vázquez-Laslop / Alexander S Mankin / Daniel N Wilson / Abstract: In bacteria, ribosome stalling during translation of ErmBL leader peptide occurs in the presence of the antibiotic erythromycin and leads to induction of expression of the downstream macrolide ...In bacteria, ribosome stalling during translation of ErmBL leader peptide occurs in the presence of the antibiotic erythromycin and leads to induction of expression of the downstream macrolide resistance methyltransferase ErmB. The lack of structures of drug-dependent stalled ribosome complexes (SRCs) has limited our mechanistic understanding of this regulatory process. Here we present a cryo-electron microscopy structure of the erythromycin-dependent ErmBL-SRC. The structure reveals that the antibiotic does not interact directly with ErmBL, but rather redirects the path of the peptide within the tunnel. Furthermore, we identify a key peptide-ribosome interaction that defines an important relay pathway from the ribosomal tunnel to the peptidyltransferase centre (PTC). The PTC of the ErmBL-SRC appears to adopt an uninduced state that prevents accommodation of Lys-tRNA at the A-site, thus providing structural basis for understanding how the drug and the nascent peptide cooperate to inhibit peptide bond formation and induce translation arrest. | ||||||
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 | 3j5l.cif.gz | 2.2 MB | Display | PDBx/mmCIF format |
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PDB format | pdb3j5l.ent.gz | 1.7 MB | Display | PDB format |
PDBx/mmJSON format | 3j5l.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 3j5l_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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Full document | 3j5l_full_validation.pdf.gz | 2.3 MB | Display | |
Data in XML | 3j5l_validation.xml.gz | 240.3 KB | Display | |
Data in CIF | 3j5l_validation.cif.gz | 365.2 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/j5/3j5l ftp://data.pdbj.org/pub/pdb/validation_reports/j5/3j5l | HTTPS FTP |
-Related structure data
Related structure data | 5771MC 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
+50S ribosomal protein ... , 29 types, 29 molecules 01234CDEFGHIJKLMNOPQRSTUVWXYZ
-RNA chain , 4 types, 4 molecules 57AB
#6: RNA chain | Mass: 617.483 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: 3'-end of A-site tRNA |
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#8: RNA chain | Mass: 894.612 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: 3'-end of P-site tRNA |
#9: RNA chain | Mass: 941612.375 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / Strain: K-12 / References: GenBank: 33357927 |
#10: RNA chain | Mass: 38177.762 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Escherichia coli (E. coli) / Strain: K-12 / References: GenBank: CP000948.1 |
-Protein/peptide , 1 types, 1 molecules 6
#7: Protein/peptide | Mass: 1253.513 Da / Num. of mol.: 1 / Fragment: nascent chain / Source method: isolated from a natural source / Source: (natural) Streptococcus sanguinis (bacteria) |
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-Non-polymers , 2 types, 2 molecules
#35: Chemical | ChemComp-UNL / Num. of mol.: 1 / Source method: obtained synthetically |
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#36: Chemical | ChemComp-ERY / |
-Details
Has protein modification | Y |
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Sequence details | FULL-LENGTH PROTEIN L9 IS PRESENT IN THE RIBOSOME, BUT ONLY RESIDUES 1-56 ARE MODELED. |
-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: ErmBL-stalled E. coli 70S ribosome / Type: RIBOSOME |
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Buffer solution | pH: 7.4 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Details: Plunged into liquid ethane (FEI VITROBOT MARK IV) |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS / Date: Mar 14, 2013 |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 148721 X / Calibrated magnification: 148721 X / Nominal defocus max: 4500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm / Camera length: 0 mm |
Specimen holder | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Tilt angle max: 0 ° / Tilt angle min: 0 ° |
Image recording | Electron dose: 20 e/Å2 / Film or detector model: TVIPS TEMCAM-F416 (4k x 4k) |
Image scans | Num. digital images: 17906 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Relative weight: 1 |
-Processing
EM software |
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CTF correction | Details: Defocus groups | ||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Resolution: 6.6 Å / Resolution method: FSC 0.5 CUT-OFF / Num. of particles: 349744 / Nominal pixel size: 1.0605 Å / Actual pixel size: 1.0605 Å / Details: (Single particle--Applied symmetry: C1) / Symmetry type: POINT | ||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL / Details: REFINEMENT PROTOCOL--rigid body | ||||||||||||
Atomic model building | PDB-ID: 3OFR 3ofr Accession code: 3OFR / Source name: PDB / Type: experimental model | ||||||||||||
Refinement step | Cycle: LAST
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