Crystal Structure of human FABP4 in complex with rac-(1R,3S)-2,2-dimethyl-3-[(2-phenylphenyl)carbamoyl]cyclopropane-1-carboxylic acid, i.e. SMILES C(=O)(O)[C@@H]1[C@H](C(=O)Nc2ccccc2c2ccccc2)C1(C)C with IC50=0.582 microM
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 7 | 293 | protein in 25mM Tris/HCl pH 7.5 100mM NaCl, see also PMID 27658368 |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.29 | 46.32 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 33.816 | α = 90 |
| b = 55.013 | β = 90 |
| c = 74.013 | 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 | 2010-09-19 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SLS BEAMLINE X10SA | 1.000000 | 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 | 1.51 | 37.01 | 97.3 | 0.056 | 0.061 | 0.999 | 14.11 | 6.176 | 21828 | 30.893 | |||||||||
| 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 | 1.51 | 1.55 | 98.5 | 1.371 | 1.486 | 0.544 | 1.3 | 6.643 | |||||||||||
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 | 1.51 | 37.01 | 18870 | 989 | 88.75 | 0.2099 | 0.2086 | 0.2206 | 0.2344 | 0.2485 | RANDOM | 25.948 | ||||
| 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] | |
| 1.73 | -0.33 | -1.4 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 35.864 |
| r_dihedral_angle_4_deg | 17.95 |
| r_dihedral_angle_3_deg | 13.404 |
| r_dihedral_angle_1_deg | 5.702 |
| r_angle_refined_deg | 1.404 |
| r_angle_other_deg | 0.796 |
| r_chiral_restr | 0.089 |
| r_bond_refined_d | 0.012 |
| r_gen_planes_refined | 0.005 |
| r_bond_other_d | 0.001 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 1046 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 89 |
| Heterogen Atoms | 35 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| XSCALE | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| XDS | data reduction |
| PHASER | phasing |














