Crystal Structure of rat Autotaxin in complex with N-[(1R,3S)-3-[(2S)-2-benzyl-4-[2-(methylamino)-2-oxoethyl]-3-oxopiperazine-1-carbonyl]cyclopentyl]-4-chloro-3-(trifluoromethyl)benzamide, i.e. SMILES C1[C@@H](CC[C@@H]1C(=O)N1CCN(C(=O)[C@@H]1Cc1ccccc1)CC(=O)NC)NC(=O)c1ccc(c(c1)C(F)(F)F)Cl with IC50=0.17269 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 |
| 2.39 | 48.48 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 84.203 | α = 90 |
| b = 92.065 | β = 90 |
| c = 119.91 | 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 | 2013-05-04 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SLS BEAMLINE X10SA | 0.999960 | 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 | 1.57 | 46.03 | 99.5 | 0.104 | 0.113 | 0.999 | 11.88 | 6.633 | 129822 | 27.051 | |||||||||
| 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 | 1.57 | 1.61 | 99.1 | 1.701 | 1.841 | 0.447 | 1.05 | 6.703 | |||||||||||
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 | 1.57 | 46.03 | 102083 | 5473 | 82.53 | 0.1867 | 0.1852 | 0.1835 | 0.2148 | 0.2128 | RANDOM | 23.977 | ||||
| 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] | |
| -0.65 | 0.65 | |||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 33.351 |
| r_dihedral_angle_4_deg | 14.982 |
| r_dihedral_angle_3_deg | 13.358 |
| r_dihedral_angle_1_deg | 6.26 |
| r_angle_refined_deg | 1.623 |
| r_chiral_restr | 0.112 |
| r_bond_refined_d | 0.014 |
| r_gen_planes_refined | 0.009 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 6508 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 641 |
| Heterogen Atoms | 154 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XSCALE | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| XDS | data reduction |
| PHASER | phasing |














