3LC0
Histidyl-tRNA synthetase from Trypanosoma cruzi (Histidine complex)
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION | 5.5 | 293 | 0.2 M Lithium Sulfate, 26% PEG 3350, 0.1 M Bis/Tris pH 5.5, 1mM TCEP, 10 mM L-Histidine, vapor diffusion, temperature 293K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.43 | 49.39 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 90.03 | α = 90 |
b = 118.84 | β = 132.57 |
c = 65.98 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 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 | IMAGE PLATE | MAR scanner 345 mm plate | 2009-08-09 | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 0.97923 | SSRL | BL9-2 |
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 | 1.8 | 48 | 99.85 | 0.042 | 14.0065 | 3.78 | 47130 | 47130 | 33 |
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 | 1.8 | 1.9 | 99.85 | 0.64 | 3.75 | 6847 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Work | R-Free | Mean Isotropic B | ||||||||||
X-RAY DIFFRACTION | previous isomorphous structure | 1.8 | 34.108 | 47123 | 2374 | 99.822 | 0.1926 | 0.2112 | 14.857 |
Temperature Factor Modeling | ||||||
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Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.671 | 1.391 | -0.948 | 1.159 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.724 |
r_dihedral_angle_4_deg | 18.789 |
r_dihedral_angle_3_deg | 15.603 |
r_dihedral_angle_1_deg | 5.733 |
r_scangle_it | 3.114 |
r_scbond_it | 1.856 |
r_angle_refined_deg | 1.264 |
r_mcangle_it | 1.137 |
r_mcbond_it | 0.611 |
r_chiral_restr | 0.089 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 3248 |
Nucleic Acid Atoms | |
Solvent Atoms | 178 |
Heterogen Atoms | 11 |
Software
Software | |
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Software Name | Purpose |
SCALA | data scaling |
REFMAC | refinement |
PDB_EXTRACT | data extraction |
MOSFLM | data reduction |