Crystal structure of the first R-stereoselective -transaminase identified from Arthrobacter sp. KNK168 (FERM-BP-5228)
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.4 | 293 | 0.2 M magnesium chloride, 0.1 M Bis-Tris, 22% (w/v) PEG 3350, pH 6.4, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.09 | 41.21 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 80.62 | α = 90 |
| b = 80.62 | β = 90 |
| c = 93.88 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 42 21 2 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | CCD | ADSC QUANTUM 315r | 2012-10-30 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE BL-5A | 1.0000 | Photon Factory | BL-5A |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 1.65 | 45 | 99.8 | 37806 | 37725 | -3 | |||||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||||
| 1 | 1.65 | 1.75 | 98.8 | ||||||||||||||||
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 | THROUGHOUT | 1.65 | 40.31 | 35839 | 1885 | 99.76 | 0.15426 | 0.15331 | 0.1634 | 0.17243 | 0.1807 | RANDOM | 17.829 | |||||
| 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] | |
| -0.09 | -0.09 | 0.18 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 30.316 |
| r_dihedral_angle_4_deg | 16.318 |
| r_dihedral_angle_3_deg | 10.616 |
| r_dihedral_angle_1_deg | 5.5 |
| r_angle_refined_deg | 1.209 |
| r_angle_other_deg | 0.711 |
| r_chiral_restr | 0.068 |
| r_bond_refined_d | 0.007 |
| r_gen_planes_refined | 0.005 |
| r_bond_other_d | 0.001 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2566 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 324 |
| Heterogen Atoms | 21 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XDS | data scaling |
| MOLREP | phasing |
| REFMAC | refinement |
| XDS | data reduction |
| XSCALE | data scaling |
