Priestia megaterium isoleucyl-tRNA synthetase 2 in complex with Escherichia coli tRNA-Ile-GAU and ATP
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 293 | HEPES NaOH pH [6-8] magnesium chloride 50 mM PEG 3350 [7.5-15%] ammonium acetate 100 mM 1ul of protein:tRNA:ATP complex was mixed with 1ul of crystallization solution. |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.7 | 59.3 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 121.75 | α = 90 |
| b = 147.01 | β = 90 |
| c = 344.11 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | PIXEL | DECTRIS EIGER X 16M | 2022-03-31 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SLS BEAMLINE X06SA | 1 | SLS | X06SA |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | CC (Half) | 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 | 5.3 | 48.51 | 99.8 | 0.105 | 0.11 | 1 | 13.37 | 13.5 | 23078 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
| 1 | 5.3 | 5.44 | 99.6 | 2.064 | 2.142 | 0.767 | 1.63 | 13.9 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | 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 | MOLECULAR REPLACEMENT | FREE R-VALUE | 5.3 | 48.51 | 20481 | 1775 | 88.7 | 0.2095 | 0.2055 | 0.2051 | 0.2495 | 0.249 | Random selection | ||||||
| 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 |
| f_dihedral_angle_d | 16.806 |
| f_angle_d | 0.714 |
| f_chiral_restr | 0.044 |
| f_plane_restr | 0.005 |
| f_bond_d | 0.004 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 33268 |
| Nucleic Acid Atoms | 6596 |
| Solvent Atoms | 6 |
| Heterogen Atoms | 14 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHENIX | refinement |
| XSCALE | data scaling |
| XDS | data reduction |
| PHASER | phasing |
| PDB_EXTRACT | data extraction |
