Structure-Function characterization of an aldo-keto reductase involved in detoxification of the mycotoxin, deoxynivalenol
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 4XK2 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
2 | VAPOR DIFFUSION, SITTING DROP | 5.6 | 288 | 11 mg/ml protein, 400 micromolar NADP+, 0.8M ammonium sulfate, 20mM ammonium acetate, and 0.1M TRIS citrate |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 159.45 | α = 90 |
b = 159.45 | β = 90 |
c = 163.9 | γ = 90 |
Symmetry | |
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Space Group | P 4 21 2 |
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 | CCD | RAYONIX MX300HE | 2019-06-28 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | CLSI BEAMLINE 08B1-1 | 1.033210 | CLSI | 08B1-1 |
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 | 2.5 | 46.45 | 99.81 | 0.2617 | 0.2701 | 0.06645 | 0.998 | 11.52 | 16.4 | 73419 | 47.35 |
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 | 2.5 | 2.589 | 99.81 | 2.503 | 2.581 | 0.6274 | 0.595 | 1.3 | 16.6 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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) | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 4XK2 | 2.5 | 46.45 | 1.34 | 73312 | 3667 | 99.84 | 0.1871 | 0.1847 | 0.19 | 0.2341 | 0.23 | 61.26 |
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] | |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 13.8943 |
f_angle_d | 0.4331 |
f_chiral_restr | 0.0367 |
f_plane_restr | 0.0037 |
f_bond_d | 0.0018 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 9821 |
Nucleic Acid Atoms | |
Solvent Atoms | 575 |
Heterogen Atoms | 183 |
Software
Software | |
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Software Name | Purpose |
PHENIX | refinement |
XDS | data reduction |
XSCALE | data scaling |
PHASER | phasing |