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- PDB-8ev7: Crystal structure of the Thermus thermophilus 70S ribosome in com... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8ev7 | |||||||||||||||
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Title | Crystal structure of the Thermus thermophilus 70S ribosome in complex with kanamycin, mRNA, and A-, P-, and E-site tRNAs | |||||||||||||||
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![]() | RIBOSOME / Kanamycin / antibiotic / aminoglycoside / 70S ribosome / inhibitor / tRNA | |||||||||||||||
Function / homology | ![]() large ribosomal subunit / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / transferase activity / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit ...large ribosomal subunit / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / transferase activity / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / rRNA binding / negative regulation of translation / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / zinc ion binding / metal ion binding / cytosol / cytoplasm Similarity search - Function | |||||||||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | |||||||||||||||
Method | ![]() ![]() ![]() | |||||||||||||||
![]() | Seely, S.M. / Gagnon, M.G. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Molecular basis of the pleiotropic effects by the antibiotic amikacin on the ribosome. Authors: Savannah M Seely / Narayan P Parajuli / Arindam De Tarafder / Xueliang Ge / Suparna Sanyal / Matthieu G Gagnon / ![]() ![]() Abstract: Aminoglycosides are a class of antibiotics that bind to ribosomal RNA and exert pleiotropic effects on ribosome function. Amikacin, the semisynthetic derivative of kanamycin, is commonly used for ...Aminoglycosides are a class of antibiotics that bind to ribosomal RNA and exert pleiotropic effects on ribosome function. Amikacin, the semisynthetic derivative of kanamycin, is commonly used for treating severe infections with multidrug-resistant, aerobic Gram-negative bacteria. Amikacin carries the 4-amino-2-hydroxy butyrate (AHB) moiety at the N amino group of the central 2-deoxystreptamine (2-DOS) ring, which may confer amikacin a unique ribosome inhibition profile. Here we use in vitro fast kinetics combined with X-ray crystallography and cryo-EM to dissect the mechanisms of ribosome inhibition by amikacin and the parent compound, kanamycin. Amikacin interferes with tRNA translocation, release factor-mediated peptidyl-tRNA hydrolysis, and ribosome recycling, traits attributed to the additional interactions amikacin makes with the decoding center. The binding site in the large ribosomal subunit proximal to the 3'-end of tRNA in the peptidyl (P) site lays the groundwork for rational design of amikacin derivatives with improved antibacterial properties. | |||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 7.5 MB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 8ev6C ![]() 8sylC ![]() 4y4pS S: Starting model for refinement C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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2 | ![]()
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Unit cell |
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Components
-RNA chain , 6 types, 14 molecules 1A2A1B2B1a2a1v2v1w1y2w2y1x2x
#1: RNA chain | Mass: 948035.625 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #2: RNA chain | Mass: 39188.371 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #32: RNA chain | Mass: 493864.625 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #53: RNA chain | Mass: 7804.735 Da / Num. of mol.: 2 / Source method: obtained synthetically / Details: Synthetic 24-nt M-F-Stop mRNA / Source: (synth.) ![]() #54: RNA chain | Mass: 24645.881 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Details: Deacylated Phenylalanyl-tRNA / Source: (gene. exp.) ![]() ![]() ![]() ![]() #55: RNA chain | Mass: 24846.902 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: Deacylated Initiator Methionyl-tRNA / Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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+50S ribosomal protein ... , 29 types, 58 molecules 1D2D1E2E1F2F1G2G1H2H1I2I1N2N1O2O1P2P1Q2Q1R2R1S2S1T2T1U2U1V2V...
-30S ribosomal protein ... , 20 types, 40 molecules 1b2b1c2c1d2d1e2e1f2f1g2g1h2h1i2i1j2j1k2k1l2l1m2m1n2n1o2o1p2p...
#33: Protein | Mass: 29317.703 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #34: Protein | Mass: 26751.076 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #35: Protein | Mass: 24373.447 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #36: Protein | Mass: 17583.416 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #37: Protein | Mass: 11988.753 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #38: Protein | Mass: 18050.973 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #39: Protein | Mass: 15868.570 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #40: Protein | Mass: 14410.614 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #41: Protein | Mass: 11954.968 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #42: Protein | Mass: 13737.868 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #43: Protein | Mass: 14683.476 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #44: Protein | Mass: 14338.861 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #45: Protein | Mass: 7158.725 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #46: Protein | Mass: 10578.407 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #47: Protein | Mass: 10409.983 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #48: Protein | Mass: 12325.655 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #49: Protein | Mass: 10258.299 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #50: Protein | Mass: 10605.464 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #51: Protein | Mass: 11736.143 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() #52: Protein/peptide | Mass: 3350.030 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
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-Non-polymers , 5 types, 4405 molecules ![](data/chem/img/MG.gif)
![](data/chem/img/KAN.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/SF4.gif)
![](data/chem/img/HOH.gif)
![](data/chem/img/KAN.gif)
![](data/chem/img/ZN.gif)
![](data/chem/img/SF4.gif)
![](data/chem/img/HOH.gif)
#56: Chemical | ChemComp-MG / #57: Chemical | ChemComp-KAN / #58: Chemical | ChemComp-ZN / #59: Chemical | #60: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.21 Å3/Da / Density % sol: 61.68 % / Description: Long needles |
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Crystal grow | Temperature: 292 K / Method: vapor diffusion / pH: 7.6 Details: 0.15 M Arginine-HCl, 0.1M Tris-HCl pH 7.6, 2.9% PEG-20K, 9-10.5% MPD, 0.5 mM BME |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Diffraction source | Source: ![]() ![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Detector | Type: DECTRIS EIGER2 X 16M / Detector: PIXEL / Date: Jun 18, 2020 / Details: S/N E-32-0124 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Radiation wavelength | Wavelength: 0.97918 Å / Relative weight: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection | Resolution: 2.89→152.879 Å / Num. obs: 1264349 / % possible obs: 98.7 % / Redundancy: 4.646 % / Biso Wilson estimate: 68.467 Å2 / CC1/2: 0.995 / Rmerge(I) obs: 0.265 / Rrim(I) all: 0.297 / Χ2: 1.151 / Net I/σ(I): 6.81 / Num. measured all: 5874046 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reflection shell | Diffraction-ID: 1
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 4Y4P Resolution: 2.89→152.879 Å / SU ML: 0.48 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 27.74 / Stereochemistry target values: ML
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Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso max: 152.8 Å2 / Biso mean: 68.0678 Å2 / Biso min: 14.22 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: final / Resolution: 2.89→152.879 Å
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Refine LS restraints |
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LS refinement shell | Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0
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