Crystal Structure Analysis of B. stearothermophilus Tryptophanyl-tRNA Synthetase Complexed with Tryptophan, AMP, and Inorganic Phosphate
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | 6.58 | 315 | 2.18 M K2HPO4, 0.6% (v/v) PEG 400, pH 6.58, dialysis, temperature 315K | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.59 | 52.55 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 122.032 | α = 79.9 |
| b = 122.396 | β = 80.52 |
| c = 122.341 | γ = 79.81 |
| Symmetry | |
|---|---|
| Space Group | P 1 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 300 mm plate | 2006-09-15 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 22-ID | 0.97934,0.97945,0.97117 | APS | 22-ID |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 2.7 | 25 | 97.7 | 0.069 | 3.96 | 203226 | 3 | 67.9 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||
| X-RAY DIFFRACTION | THROUGHOUT | 2.7 | 25 | 2 | 208010 | 203226 | 9262 | 97.7 | 0.19 | 0.19 | 0.25 | 0.22 | 0.26 | RANDOM | 57.81 | ||||
| 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] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_angle_refined_deg | 3.38 |
| r_bond_refined_d | 0.044 |
| r_bond_other_d | |
| r_angle_other_deg | |
| r_dihedral_angle_1_deg | |
| r_dihedral_angle_2_deg | |
| r_dihedral_angle_3_deg | |
| r_dihedral_angle_4_deg | |
| r_chiral_restr | |
| r_gen_planes_refined | |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 43223 |
| Nucleic Acid Atoms | |
| Solvent Atoms | |
| Heterogen Atoms | 504 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| PHASER | phasing |
| SHARP | phasing |
| SOLOMON | phasing |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
