Crystal Structure of rat Autotaxin in complex with [2-fluoro-4-(2,2,2-trifluoroethoxy)phenyl]methyl 2-(4,5,6,7-tetrahydro-1H-benzotriazole-5-carbonyl)-2,7-diazaspiro[3.5]nonane-7-carboxylate, i.e. SMILES C1N(CC21CCN(CC2)C(=O)OCc1c(cc(cc1)OCC(F)(F)F)F)C(=O)[C@H]1CCC2=C(C1)N=NN2 with IC50=0.211229 microM
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 4.5 | 293 | 15.3 mg/mL protein in 20mM BICINE/NaOH pH8.5, 150mM NaCl, 0.02% NaN3 mixed 50-70% with 50-30% reservoir consisting of 11-17% PEG3350, 0.1M Na-acetate pH4.5, 0.2M Ca-acetate, total volume 200nL |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.4 | 48.72 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 84.521 | α = 90 |
| b = 91.926 | β = 90 |
| c = 120.213 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 21 21 21 |
Diffraction
| Diffraction Experiment | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
| 1 | 1 | x-ray | 100 | PIXEL | PSI PILATUS 6M | 2013-02-21 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SLS BEAMLINE X10SA | 0.999970 | SLS | X10SA |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim 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 | 2.03 | 45.96 | 99.9 | 0.098 | 0.107 | 0.999 | 12.52 | 6.696 | 61234 | 43.233 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||
| 1 | 2.03 | 2.08 | 99.9 | 1.62 | 1.752 | 0.464 | 1.08 | 6.832 | |||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | inhouse model | 2.03 | 45.96 | 55849 | 2987 | 96.13 | 0.1947 | 0.1922 | 0.1907 | 0.241 | 0.2391 | RANDOM | 41.883 | ||||
| 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] | |
| -1.22 | 1.21 | 0.01 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.468 |
| r_dihedral_angle_4_deg | 19.332 |
| r_dihedral_angle_3_deg | 15.863 |
| r_dihedral_angle_1_deg | 6.715 |
| r_angle_refined_deg | 1.647 |
| r_chiral_restr | 0.114 |
| r_bond_refined_d | 0.013 |
| r_gen_planes_refined | 0.008 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6489 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 358 |
| Heterogen Atoms | 249 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XSCALE | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| XDS | data reduction |
| PHASER | phasing |














