+Open data
-Basic information
Entry | Database: PDB / ID: 1kmn | |||||||||
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Title | HISTIDYL-TRNA SYNTHETASE COMPLEXED WITH HISTIDINOL AND ATP | |||||||||
Components | HISTIDYL-TRNA SYNTHETASEHistidine—tRNA ligase | |||||||||
Keywords | AMINOACYL-TRNA SYNTHASE / LIGASE / SYNTHETASE | |||||||||
Function / homology | Function and homology information histidine-tRNA ligase / histidine-tRNA ligase activity / histidyl-tRNA aminoacylation / protein homodimerization activity / ATP binding / cytosol Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) | |||||||||
Method | X-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.8 Å | |||||||||
Authors | Arnez, J.G. / Francklyn, C.S. / Moras, D. | |||||||||
Citation | Journal: Proc.Natl.Acad.Sci.USA / Year: 1997 Title: The first step of aminoacylation at the atomic level in histidyl-tRNA synthetase. Authors: Arnez, J.G. / Augustine, J.G. / Moras, D. / Francklyn, C.S. #1: Journal: Embo J. / Year: 1995 Title: Crystal Structure of Histidyl-tRNA Synthetase from Escherichia Coli Complexed with Histidyl-Adenylate Authors: Arnez, J.G. / Harris, D.C. / Mitschler, A. / Rees, B. / Francklyn, C.S. / Moras, D. #2: Journal: J.Mol.Biol. / Year: 1994 Title: Crystallization of Histidyl-tRNA Synthetase from Escherichia Coli Authors: Francklyn, C. / Harris, D. / Moras, D. #3: Journal: J.Biol.Chem. / Year: 1985 Title: Primary Structure of Histidine-tRNA Synthetase and Characterization of Hiss Transcripts Authors: Freedman, R. / Gibson, B. / Donovan, D. / Biemann, K. / Eisenbeis, S. / Parker, J. / Schimmel, P. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1kmn.cif.gz | 355.3 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1kmn.ent.gz | 287 KB | Display | PDB format |
PDBx/mmJSON format | 1kmn.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/km/1kmn ftp://data.pdbj.org/pub/pdb/validation_reports/km/1kmn | HTTPS FTP |
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-Related structure data
-Links
-Assembly
Deposited unit |
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1 |
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2 |
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Unit cell |
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Noncrystallographic symmetry (NCS) | NCS oper:
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-Components
#1: Protein | Mass: 47085.316 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (E. coli) / Strain: JM109 / Description: INDUCTION WITH IPTG / Plasmid: PHRS-7 / Gene (production host): HISS / Production host: Escherichia coli (E. coli) / Variant (production host): TRP-LAC / References: UniProt: P60906, histidine-tRNA ligase #2: Chemical | ChemComp-HSO / #3: Chemical | ChemComp-ATP / #4: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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-Sample preparation
Crystal | Density Matthews: 3.3 Å3/Da / Density % sol: 68 % | ||||||||||||||||||||||||||||||||||||||||
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Crystal grow | pH: 7.4 Details: SLIGHT CONTRACTION DUE TO CRYO (-143 DEG C), pH 7.4 | ||||||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Temperature: 20 ℃ / Method: vapor diffusion, hanging dropDetails: drop solution was mixed with an equal volume of reservoir solution | ||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 130 K |
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Diffraction source | Source: SYNCHROTRON / Site: LURE / Beamline: DW32 / Wavelength: 0.94 |
Detector | Type: MARRESEARCH / Detector: IMAGE PLATE / Date: Nov 3, 1995 |
Radiation | Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.94 Å / Relative weight: 1 |
Reflection | Resolution: 2.6→16 Å / Num. obs: 63562 / % possible obs: 84.4 % / Observed criterion σ(I): 0 / Redundancy: 1.8 % / Biso Wilson estimate: 71 Å2 / Rmerge(I) obs: 0.036 / Net I/σ(I): 18.7 |
Reflection shell | Resolution: 2.8→2.9 Å / Redundancy: 1.7 % / Rmerge(I) obs: 0.1 / Mean I/σ(I) obs: 5 / % possible all: 82.5 |
Reflection | *PLUS Num. measured all: 116502 |
Reflection shell | *PLUS % possible obs: 82.5 % |
-Processing
Software |
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Refinement | Resolution: 2.8→13 Å / σ(F): 3
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Displacement parameters | Biso mean: 44.7 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine analyze | Luzzati coordinate error obs: 0.5 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement step | Cycle: LAST / Resolution: 2.8→13 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.8→2.93 Å / Total num. of bins used: 8
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Software | *PLUS Name: X-PLOR / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refinement | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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LS refinement shell | *PLUS Rfactor obs: 0.406 |