4DLP
Crystal structure of methionyl-tRNA synthetase MetRS from Brucella melitensis bound to selenomethionine
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 2X1L | pdb entry 2x1l |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 289 | BrabA.10201.a.A1 PW27667 at 28.7 mg/mL with 5 mM selenomethionine and 5 mM ATP against JCSG+ screen condition C3, 0.2 M ammonium nitrate, 20% PEG 3350, crystal tracking ID 226820c3, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 289K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.52 | 51.15 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 116.25 | α = 90 |
b = 77.62 | β = 119.67 |
c = 116.27 | γ = 90 |
Symmetry | |
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Space Group | P 1 21 1 |
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 | 100 | CCD | MARMOSAIC 225 mm CCD | 2012-02-03 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | 0.97872 | APS | 21-ID-F |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 2.65 | 50 | 99.3 | 0.071 | 15.21 | 3.7 | 52724 | 52379 | -3 | 51.6 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.65 | 2.72 | 99.5 | 0.486 | 2.63 |
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 2x1l | 2.65 | 50 | 52379 | 2671 | 99.6 | 0.1991 | 0.1971 | 0.2373 | RANDOM | 48.2529 |
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] | |
-2.33 | -1.21 | 3.8 | -2.68 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 34.969 |
r_dihedral_angle_4_deg | 18.08 |
r_dihedral_angle_3_deg | 13.16 |
r_dihedral_angle_1_deg | 5.652 |
r_angle_refined_deg | 1.421 |
r_angle_other_deg | 1.149 |
r_chiral_restr | 0.075 |
r_bond_refined_d | 0.012 |
r_gen_planes_refined | 0.007 |
r_bond_other_d | 0.005 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 10934 |
Nucleic Acid Atoms | |
Solvent Atoms | 91 |
Heterogen Atoms | 27 |
Software
Software | |
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Software Name | Purpose |
XSCALE | data scaling |
PHASER | phasing |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
XDS | data reduction |