3AFH
Crystal structure of Thermotoga maritima nondiscriminating glutamyl-tRNA synthetase in complex with a glutamyl-AMP analog
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2O5R | PDB ENTRY 2O5R |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 298 | 2.25mM MgCl2, 4.5mM 2-mercaptoethanol, 22.5mM NaCl, 3% D-sorbitol, 45mM HEPES-NaOH buffer (pH 7.5), 3.6% ethylene glycol, 6.75% PEG 8000, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.44 | 49.63 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 68.624 | α = 90 |
b = 207.317 | β = 90 |
c = 39.495 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 95 | CCD | ADSC QUANTUM 210r | mirrors | 2008-11-04 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE AR-NW12A | 1.0 | Photon Factory | AR-NW12A |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | Net I Over Average Sigma (I) | Redundancy | Number Reflections (All) | Number Reflections (Observed) | Observed Criterion Sigma (F) | Observed Criterion Sigma (I) | B (Isotropic) From Wilson Plot | ||||||||
1 | 2 | 50 | 95.7 | 0.095 | 17.9 | 6.4 | 37578 | -3 | 16.5 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2 | 2.07 | 72 | 0.402 | 2.2 | 4.8 | 2799 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB ENTRY 2O5R | 2 | 39.5 | 37512 | 1866 | 95.5 | 0.186 | 0.186 | 0.235 | RANDOM | 30.5 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.45 | -9.77 | 8.31 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
c_dihedral_angle_d | 20.8 |
c_scangle_it | 4.76 |
c_scbond_it | 3.34 |
c_mcangle_it | 2.67 |
c_mcbond_it | 1.97 |
c_angle_deg | 1.2 |
c_improper_angle_d | 0.81 |
c_bond_d | 0.008 |
c_bond_d_na | |
c_bond_d_prot |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3855 |
Nucleic Acid Atoms | |
Solvent Atoms | 516 |
Heterogen Atoms | 32 |
Software
Software | |
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Software Name | Purpose |
HKL-2000 | data collection |
PHASER | phasing |
CNS | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |