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- EMDB-5036: Aminoacyl-tRNA-EF-Tu-GDP-kir ternary complex-bound E. coli 70S ri... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-5036 | |||||||||
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Title | Aminoacyl-tRNA-EF-Tu-GDP-kir ternary complex-bound E. coli 70S ribosome | |||||||||
![]() | Ternary complex-bound 70S E. coli ribosome | |||||||||
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![]() | decoding / tRNA selection / GTPase / accommodation / flexible fitting / cryo-EM / MDFF / hydrophobic gate / EF-Tu / ribosome / ternary complex | |||||||||
Function / homology | ![]() guanyl-nucleotide exchange factor complex / protein-synthesizing GTPase / guanosine tetraphosphate binding / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / translational elongation ...guanyl-nucleotide exchange factor complex / protein-synthesizing GTPase / guanosine tetraphosphate binding / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / RNA folding / translational elongation / translation elongation factor activity / transcriptional attenuation / positive regulation of ribosome biogenesis / endoribonuclease inhibitor activity / RNA-binding transcription regulator activity / translational termination / negative regulation of cytoplasmic translation / four-way junction DNA binding / DnaA-L2 complex / translation repressor activity / negative regulation of translational initiation / regulation of mRNA stability / 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 / ribosome assembly / transcription elongation factor complex / regulation of DNA-templated transcription elongation / cytosolic ribosome assembly / response to reactive oxygen species / DNA endonuclease activity / transcription antitermination / regulation of cell growth / DNA-templated transcription termination / response to radiation / maintenance of translational fidelity / mRNA 5'-UTR binding / regulation of translation / ribosome biogenesis / large ribosomal subunit / transferase activity / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / small ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / GTPase activity / mRNA binding / GTP binding / DNA binding / RNA binding / zinc ion binding / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 6.7 Å | |||||||||
![]() | Villa E / Sengupta J / Trabuco LG / LeBarron J / Baxter WT / Shaikh TR / Grassucci RA / Nissen P / Ehrenberg M / Schulten K / Frank J | |||||||||
![]() | Journal: Structure / Year: 2008 Title: Flexible fitting of atomic structures into electron microscopy maps using molecular dynamics. Authors: Leonardo G Trabuco / Elizabeth Villa / Kakoli Mitra / Joachim Frank / Klaus Schulten / ![]() Abstract: A novel method to flexibly fit atomic structures into electron microscopy (EM) maps using molecular dynamics simulations is presented. The simulations incorporate the EM data as an external potential ...A novel method to flexibly fit atomic structures into electron microscopy (EM) maps using molecular dynamics simulations is presented. The simulations incorporate the EM data as an external potential added to the molecular dynamics force field, allowing all internal features present in the EM map to be used in the fitting process, while the model remains fully flexible and stereochemically correct. The molecular dynamics flexible fitting (MDFF) method is validated for available crystal structures of protein and RNA in different conformations; measures to assess and monitor the fitting process are introduced. The MDFF method is then used to obtain high-resolution structures of the E. coli ribosome in different functional states imaged by cryo-EM. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 104.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.1 KB 17.1 KB | Display Display | ![]() |
Images | ![]() | 275.3 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4v69MC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Ternary complex-bound 70S E. coli ribosome | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.2 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : 70S ribosome from E. coli complex 70S-fMet-tRNA-Phe-tRNA-EF-Tu-GD...
Entire | Name: 70S ribosome from E. coli complex 70S-fMet-tRNA-Phe-tRNA-EF-Tu-GDP-kirromycin. |
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Components |
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-Supramolecule #1000: 70S ribosome from E. coli complex 70S-fMet-tRNA-Phe-tRNA-EF-Tu-GD...
Supramolecule | Name: 70S ribosome from E. coli complex 70S-fMet-tRNA-Phe-tRNA-EF-Tu-GDP-kirromycin. type: sample / ID: 1000 / Oligomeric state: single particle / Number unique components: 5 |
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-Supramolecule #1: 70S ribosome
Supramolecule | Name: 70S ribosome / type: complex / ID: 1 / Recombinant expression: No / Database: NCBI / Ribosome-details: ribosome-prokaryote: ALL |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: fMet-tRNAfMet
Macromolecule | Name: fMet-tRNAfMet / type: rna / ID: 1 / Classification: TRANSFER / Structure: SINGLE STRANDED / Synthetic?: No |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #2: Phe-tRNAPhe
Macromolecule | Name: Phe-tRNAPhe / type: rna / ID: 2 / Classification: TRANSFER / Structure: SINGLE STRANDED / Synthetic?: No |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #3: tRNA
Macromolecule | Name: tRNA / type: rna / ID: 3 / Name.synonym: deacylated tRNA / Classification: TRANSFER / Structure: SINGLE STRANDED / Synthetic?: No |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #4: Elongation factor Tu
Macromolecule | Name: Elongation factor Tu / type: protein_or_peptide / ID: 4 / Name.synonym: EF-Tu / Details: EF-Tu bound to kirromycin and GDP / Number of copies: 1 / Oligomeric state: monomer / Recombinant expression: Yes |
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Source (natural) | Organism: ![]() ![]() |
Recombinant expression | Organism: ![]() ![]() |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.0768 mg/mL |
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Buffer | pH: 7.5 Details: 5 mM potassium phosphate, 5 mM magnesium acetate, 5 mM ammonium chloride, 95 mM potassium chloride, 0.5 mM calcium chloride, 8 mM putrescine, 1 mM spermidine, and 1 mM dithioerythritol |
Grid | Details: Thin Carbon on 300 mesh Quantifoil R2/4 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 80 K / Instrument: OTHER Details: Vitrification instrument: FEI vitrobot. Blot Offset at -1 mm Method: Blot 3 seconds before plunging |
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Electron microscopy
Microscope | FEI POLARA 300 |
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Temperature | Average: 84 K |
Alignment procedure | Legacy - Astigmatism: Objective lens astigmatism was corrected at 115,000 times magnification with fastscan ccd |
Details | Low dose |
Date | Aug 31, 2006 |
Image recording | Category: FILM / Film or detector model: KODAK SO-163 FILM / Digitization - Scanner: ZEISS SCAI / Digitization - Sampling interval: 7 µm / Number real images: 304 / Average electron dose: 20 e/Å2 / Od range: 1.2 / Bits/pixel: 12 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Calibrated magnification: 58279 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.26 mm / Nominal defocus max: 4.52 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 59000 |
Sample stage | Specimen holder: FEI Polara Cartridge / Specimen holder model: OTHER |
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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Image processing
CTF correction | Details: Correction of reconstruction of each defocus group |
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Final reconstruction | Algorithm: OTHER / Resolution.type: BY AUTHOR / Resolution: 6.7 Å / Resolution method: OTHER / Software - Name: Spider / Number images used: 131599 |
-Atomic model buiding 1
Initial model | PDB ID: ![]() 2i2u |
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Software | Name: MDFF |
Details | Protocol: MDFF. An atomic model of the entire ribosome and factors was creating using molecular dynamics flexible fitting (Trabuco et al. Flexible Fitting of Atomic Structures into Electron Microscopy Maps Using Molecular Dynamics. Structure (2008) vol. 16 (5) pp. 673-683) |
Refinement | Space: REAL / Protocol: FLEXIBLE FIT / Target criteria: RMSD, cross correlation |
Output model | ![]() PDB-4v69: |
-Atomic model buiding 2
Initial model | PDB ID: ![]() 2i2v |
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Software | Name: MDFF |
Details | Protocol: MDFF. An atomic model of the entire ribosome and factors was creating using molecular dynamics flexible fitting (Trabuco et al. Flexible Fitting of Atomic Structures into Electron Microscopy Maps Using Molecular Dynamics. Structure (2008) vol. 16 (5) pp. 673-683) |
Refinement | Space: REAL / Protocol: FLEXIBLE FIT / Target criteria: RMSD, cross correlation |
Output model | ![]() PDB-4v69: |
-Atomic model buiding 3
Initial model | PDB ID: |
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Software | Name: MDFF |
Details | Protocol: MDFF. An atomic model of the entire ribosome and factors was creating using molecular dynamics flexible fitting (Trabuco et al. Flexible Fitting of Atomic Structures into Electron Microscopy Maps Using Molecular Dynamics. Structure (2008) vol. 16 (5) pp. 673-683) |
Refinement | Space: REAL / Protocol: FLEXIBLE FIT / Target criteria: RMSD, cross correlation |
Output model | ![]() PDB-4v69: |