7B4I
Thermostable omega transaminase PjTA-R6 variant W58G engineered for asymmetric synthesis of enantiopure bulky amines
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.6 | 293 | Drops were prepared by mixing 1 ul of protein solution (~10 mg/ml in 20 mM HEPES pH 7.5, 100 mM NaCl, 20 uM PLP buffer) with 1 ul of reservoir solution. Reservoir contained 0.7-1M succinic acid pH 7.6. Crystals appeared after 48h. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.83 | 56.54 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 97.784 | α = 90 |
b = 97.784 | β = 90 |
c = 119.899 | γ = 90 |
Symmetry | |
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Space Group | P 43 |
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 | PIXEL | DECTRIS PILATUS 6M | 2020-03-04 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | DIAMOND BEAMLINE I24 | 0.9686 | DIAMOND | I24 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim 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 | 1.7 | 98 | 99.9 | 0.038 | 0.046 | 0.027 | 0.999 | 17.4 | 5.5 | 123358 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.7 | 1.73 | 0.458 | 0.563 | 0.325 | 0.863 | 5.5 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work | R-Free | Mean Isotropic B | ||||||||
X-RAY DIFFRACTION | FOURIER SYNTHESIS | FREE R-VALUE | 1.7 | 98 | 123322 | 6175 | 99.9 | 0.174 | 0.173 | 0.191 | 30.6 |
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] | |
0.117 | 0.117 | -0.233 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.051 |
r_dihedral_angle_4_deg | 15.711 |
r_dihedral_angle_3_deg | 12.521 |
r_dihedral_angle_1_deg | 6.73 |
r_lrange_it | 5.315 |
r_lrange_other | 5.26 |
r_scangle_it | 4.262 |
r_scangle_other | 4.262 |
r_scbond_it | 2.791 |
r_scbond_other | 2.79 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 6907 |
Nucleic Acid Atoms | |
Solvent Atoms | 428 |
Heterogen Atoms | 38 |
Software
Software | |
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Software Name | Purpose |
DIALS | data processing |
Aimless | data scaling |
Aimless | data reduction |
Coot | model building |
REFMAC | refinement |
REFMAC | phasing |