X-Ray Crystal Structure of a Novel Aldo-keto Reductases for the Biocatalytic Conversion of 3-hydroxybutanal to 1,3-butanediol
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3ERP |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 295 | 1.5M NH4Sulfate, 12% Sucrose, 0.1M HEPES pH7.5 |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.73 | 54.9 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 94.387 | α = 90 |
b = 94.387 | β = 90 |
c = 91.677 | γ = 90 |
Symmetry | |
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Space Group | P 4 2 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 | MARMOSAIC 300 mm CCD | Mirrors | 2012-08-17 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | APS BEAMLINE 21-ID-D | 0.97917 | APS | 21-ID-D |
Data Collection
Overall | |||||||||||||||||||
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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 | 1.85 | 30 | 99.5 | 0.073 | 25.4 | 7.7 | 35207 | -3 | 21.73 |
Highest Resolution Shell | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 1.85 | 1.88 | 100 | 0.563 | 3.2 | 7.4 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | 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 | 3ERP | 1.86 | 29.85 | 34852 | 1999 | 98.4 | 0.166 | 0.164 | 0.15 | 0.193 | 0.19 | RANDOM | 25.49 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[2][2] | Anisotropic B[3][3] | ||||
0.2126 | 0.2126 | -0.4252 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
t_omega_torsion | 3.85 |
t_other_torsion | 2.74 |
t_angle_deg | 0.95 |
t_bond_d | 0.01 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_trig_c_planes | |
t_gen_planes | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2499 |
Nucleic Acid Atoms | |
Solvent Atoms | 448 |
Heterogen Atoms | 59 |
Software
Software | |
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Software Name | Purpose |
BUSTER | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |
PHENIX | phasing |