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- PDB-7tfp: Human Ornithine Aminotransferase cocrystallized with its inhibito... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7tfp | |||||||||
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Title | Human Ornithine Aminotransferase cocrystallized with its inhibitor, (1S,3S)-3-amino-4-(difluoromethylene)cyclopentane-1-carboxylic acid. | |||||||||
![]() | Ornithine aminotransferase, mitochondrial | |||||||||
![]() | TRANSFERASE / Human Ornithine Aminotransferase / hOAT / OAT / mechanism-based inhibitor / MBI / irreversible inhibitor / inactivator | |||||||||
Function / homology | ![]() arginine catabolic process to proline via ornithine / ornithine aminotransferase activity / ornithine aminotransferase / arginine catabolic process to glutamate / L-proline biosynthetic process / Glutamate and glutamine metabolism / visual perception / pyridoxal phosphate binding / mitochondrial matrix / mitochondrion ...arginine catabolic process to proline via ornithine / ornithine aminotransferase activity / ornithine aminotransferase / arginine catabolic process to glutamate / L-proline biosynthetic process / Glutamate and glutamine metabolism / visual perception / pyridoxal phosphate binding / mitochondrial matrix / mitochondrion / nucleoplasm / identical protein binding / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ![]() ![]() ![]() | |||||||||
![]() | Butrin, A. / Zhu, W. / Silverman, R. / Liu, D. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Rational Design, Synthesis, and Mechanism of (3 S ,4 R )-3-Amino-4-(difluoromethyl)cyclopent-1-ene-1-carboxylic Acid: Employing a Second-Deprotonation Strategy for Selectivity of Human ...Title: Rational Design, Synthesis, and Mechanism of (3 S ,4 R )-3-Amino-4-(difluoromethyl)cyclopent-1-ene-1-carboxylic Acid: Employing a Second-Deprotonation Strategy for Selectivity of Human Ornithine Aminotransferase over GABA Aminotransferase. Authors: Zhu, W. / Butrin, A. / Melani, R.D. / Doubleday, P.F. / Ferreira, G.M. / Tavares, M.T. / Habeeb Mohammad, T.S. / Beaupre, B.A. / Kelleher, N.L. / Moran, G.R. / Liu, D. / Silverman, R.B. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 247.1 KB | Display | ![]() |
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PDB format | ![]() | 196.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 485.4 KB | Display | ![]() |
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Full document | ![]() | 498.1 KB | Display | |
Data in XML | ![]() | 45.4 KB | Display | |
Data in CIF | ![]() | 62.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7tedC ![]() 7tevC ![]() 1oatS 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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1 | ![]()
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2 | ![]()
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Unit cell |
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Components on special symmetry positions |
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Components
#1: Protein | Mass: 44860.320 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Chemical | #3: Chemical | ChemComp-I2V / ( | #4: Water | ChemComp-HOH / | Has ligand of interest | Y | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.66 Å3/Da / Density % sol: 53.72 % |
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.8 Details: After purification, hOAT was buffer exchanged into the crystallization buffer (50 mM Tricine pH 7.8) supplemented with 1 mM 2-ketoglutarate. The protein was concentrated to 6.5 mg/mL. ...Details: After purification, hOAT was buffer exchanged into the crystallization buffer (50 mM Tricine pH 7.8) supplemented with 1 mM 2-ketoglutarate. The protein was concentrated to 6.5 mg/mL. Previously reported crystallization conditions were optimized using the hanging drop vapor diffusion method by varying PEG 6000 (8-12%), NaCl (100-250 mM), and glycerol (0%-10%) with 100 mM Tricine pH 7.8 being kept constant as the buffer. For each hanging drop, 2 uL of protein solution was mixed with an equal volume of well solution and 0.5 uL of ligand. The crystals with the best morphology and size grew in a final condition containing 12% PEG 6000, 200 mM NaCl, 10% glycerol, and 100 mM Tricine pH 7.8. Crystals were transferred to a cryo-protectant solution (well solution supplemented with 30% glycerol) and flash-frozen in liquid nitrogen. |
-Data collection
Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: DECTRIS EIGER X 9M / Detector: PIXEL / Date: Jul 3, 2021 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.127 Å / Relative weight: 1 |
Reflection | Resolution: 2.71→57.58 Å / Num. obs: 37903 / % possible obs: 96.5 % / Redundancy: 6.4 % / Biso Wilson estimate: 53.9 Å2 / CC1/2: 0.986 / Net I/σ(I): 6 |
Reflection shell | Resolution: 2.71→2.78 Å / Num. unique obs: 2823 / CC1/2: 0.31 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: 1OAT Resolution: 2.71→43.99 Å / SU ML: 0.377 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 29.059 Stereochemistry target values: GEOSTD + MONOMER LIBRARY + CDL V1.2
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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 mean: 54.95 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.71→43.99 Å
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Refine LS restraints |
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LS refinement shell |
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