Crystal Structure of a Covalently Bound alpha-Ketoheterocycle Inhibitor (Phenhexyl/Oxadiazole/Pyridine) to a Humanized Variant of Fatty Acid Amide Hydrolase
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 3K84 | PDB ENTRY 3K84 |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 5.5 | 287 | 50 mM MES, pH 5.5, 0.02% UM-LA, 15% PEG400, 4% polypropylene glycol P400, 13% xylitol, 1 mM DTT, 50 mM potassium chloride, 50 mM sodium fluoride, VAPOR DIFFUSION, SITTING DROP, temperature 287K |
Crystal Properties | |
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Matthews coefficient | Solvent content |
3.23 | 61.95 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 104.067 | α = 90 |
b = 104.067 | β = 90 |
c = 261.034 | γ = 120 |
Symmetry | |
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Space Group | P 32 2 1 |
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 | 2011-01-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL11-1 | 0.979 | SSRL | BL11-1 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 2.3 | 50 | 97.4 | 0.127 | 11.8 | 6.4 | 71819 |
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 | 2.3 | 2.38 | 88 | 0.9 | 1.2 | 2.8 | 6384 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | 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 | MIR | THROUGHOUT | PDB ENTRY 3K84 | 2.3 | 33.38 | 71819 | 68002 | 3602 | 97.22 | 0.22216 | 0.2199 | 0.22 | 0.26487 | 0.26 | RANDOM | 61.639 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[2][2] | Anisotropic B[3][3] | |||
-0.08 | -0.08 | -0.08 | 0.26 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 39.043 |
r_dihedral_angle_4_deg | 22.279 |
r_dihedral_angle_3_deg | 17.76 |
r_dihedral_angle_1_deg | 6.027 |
r_angle_refined_deg | 1.764 |
r_angle_other_deg | 1.201 |
r_chiral_restr | 0.095 |
r_bond_refined_d | 0.016 |
r_gen_planes_refined | 0.009 |
r_bond_other_d | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 8405 |
Nucleic Acid Atoms | |
Solvent Atoms | 294 |
Heterogen Atoms | 88 |
Software
Software | |
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Software Name | Purpose |
Blu-Ice | data collection |
PHASER | phasing |
REFMAC | refinement |
HKL-2000 | data reduction |
HKL-2000 | data scaling |