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- PDB-4v68: T. thermophilus 70S ribosome in complex with mRNA, tRNAs and EF-T... -
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Open data
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Basic information
Entry | Database: PDB / ID: 4v68 | |||||||||
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Title | T. thermophilus 70S ribosome in complex with mRNA, tRNAs and EF-Tu.GDP.kirromycin ternary complex, fitted to a 6.4 A Cryo-EM map. | |||||||||
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![]() | RIBOSOME / cryo-electron microscopy/elongation factor/GTPase/ribosome/translation / Ribonucleoprotein / Ribosomal protein / RNA-binding / rRNA-binding / Metal-binding / Zinc-finger / tRNA-binding / Elongation factor / GTP-binding / Nucleotide-binding / Phosphoprotein / Protein biosynthesis | |||||||||
Function / homology | ![]() translation elongation factor activity / regulation of translation / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly ...translation elongation factor activity / regulation of translation / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / ribosome / structural constituent of ribosome / translation / ribonucleoprotein complex / GTPase activity / mRNA binding / GTP binding / RNA binding / zinc ion binding / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 6.4 Å | |||||||||
![]() | Schuette, J.-C. / Spahn, C.M.T. | |||||||||
![]() | ![]() Title: GTPase activation of elongation factor EF-Tu by the ribosome during decoding. Authors: Jan-Christian Schuette / Frank V Murphy / Ann C Kelley / John R Weir / Jan Giesebrecht / Sean R Connell / Justus Loerke / Thorsten Mielke / Wei Zhang / Pawel A Penczek / V Ramakrishnan / Christian M T Spahn / ![]() Abstract: We have used single-particle reconstruction in cryo-electron microscopy to determine a structure of the Thermus thermophilus ribosome in which the ternary complex of elongation factor Tu (EF-Tu), ...We have used single-particle reconstruction in cryo-electron microscopy to determine a structure of the Thermus thermophilus ribosome in which the ternary complex of elongation factor Tu (EF-Tu), tRNA and guanine nucleotide has been trapped on the ribosome using the antibiotic kirromycin. This represents the state in the decoding process just after codon recognition by tRNA and the resulting GTP hydrolysis by EF-Tu, but before the release of EF-Tu from the ribosome. Progress in sample purification and image processing made it possible to reach a resolution of 6.4 A. Secondary structure elements in tRNA, EF-Tu and the ribosome, and even GDP and kirromycin, could all be visualized directly. The structure reveals a complex conformational rearrangement of the tRNA in the A/T state and the interactions with the functionally important switch regions of EF-Tu crucial to GTP hydrolysis. Thus, the structure provides insights into the molecular mechanism of signalling codon recognition from the decoding centre of the 30S subunit to the GTPase centre of EF-Tu. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 3.6 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.7 MB | Display | ![]() |
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Full document | ![]() | 2.8 MB | Display | |
Data in XML | ![]() | 398.5 KB | Display | |
Data in CIF | ![]() | 610.6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 5030MC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-RNA chain , 8 types, 8 molecules AAAVAXAWAYA0BABB
#1: RNA chain | Mass: 488391.188 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#22: RNA chain | Mass: 24816.811 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#23: RNA chain | Mass: 1923.237 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: Chemically synthesized |
#24: RNA chain | Mass: 24485.539 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#25: RNA chain | Mass: 23583.344 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#26: RNA chain | Mass: 873.540 Da / Num. of mol.: 1 / Source method: obtained synthetically / Details: Chemically synthesized / References: UniProt: Q5SHN6 |
#38: RNA chain | Mass: 927659.562 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#39: RNA chain | Mass: 38553.000 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-30S ribosomal protein ... , 20 types, 20 molecules ABADAEAFAHAKALAOAPAQARATACAGAIAJAMANASAU
#2: Protein | Mass: 27116.385 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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#3: Protein | Mass: 24242.254 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#4: Protein | Mass: 16460.193 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#5: Protein | Mass: 11988.753 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#6: Protein | Mass: 15868.570 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#7: Protein | Mass: 12606.369 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#8: Protein | Mass: 13875.388 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#9: Protein | Mass: 10447.213 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#10: Protein | Mass: 9995.546 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#11: Protein | Mass: 11880.098 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#12: Protein | Mass: 8155.812 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#13: Protein | Mass: 10921.086 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#14: Protein | Mass: 22975.588 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#15: Protein | Mass: 17919.775 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#16: Protein | Mass: 14298.466 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#17: Protein | Mass: 11398.308 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#18: Protein | Mass: 14207.666 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#19: Protein | Mass: 7027.529 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#20: Protein | Mass: 9006.486 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
#21: Protein/peptide | Mass: 3089.655 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
-Protein , 1 types, 1 molecules AZ
#27: Protein | Mass: 44709.887 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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+50S ribosomal protein ... , 31 types, 31 molecules B0B1B2B3B4B5B6B7B8B9BCBDBEBFBGBHBIBLBNBOBPBQBRBSBTBUBVBWBXBYBZ
-Non-polymers , 4 types, 4 molecules 






#61: Chemical | ChemComp-PHA / |
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#62: Chemical | ChemComp-GDP / |
#63: Chemical | ChemComp-MAU / |
#64: Chemical | ChemComp-BME / |
-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: Thermus thermophilus ribosome complexed with mRNA, tRNAs and EF-Tu Type: RIBOSOME / Details: 70S tRNA EF-Tu GDP kirromycin ribosomal complexes |
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Specimen | Conc.: 30 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: Quantifoil grids. |
Vitrification | Instrument: FEI VITROBOT MARK I / Cryogen name: METHANE Details: A Vitrobot was used to shock-freeze the sample in liquid methane. |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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Microscopy | Model: FEI POLARA 300 |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 39000 X / Nominal defocus max: 4500 nm / Nominal defocus min: 1500 nm |
Specimen holder | Temperature: 77 K |
Image recording | Electron dose: 23 e/Å2 / Film or detector model: KODAK SO-163 FILM |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Relative weight: 1 |
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Processing
CTF correction | Details: CTF correction of each defocus group volume prior to back projection. | ||||||||||||
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Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||
3D reconstruction | Method: projection matching / Resolution: 6.4 Å / Num. of particles: 323688 / Nominal pixel size: 1.26 Å / Actual pixel size: 1.262 Å / Details: The SPIDER software package was used. / Symmetry type: POINT | ||||||||||||
Atomic model building | Protocol: RIGID BODY FIT / Space: REAL Target criteria: best visual fit using the programs O, CHIMERA or PYMOL. Details: REFINEMENT PROTOCOL--rigid body docking carried out with SPIDER or SITUS software. | ||||||||||||
Refinement step | Cycle: LAST
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