Structure and property based design of factor Xa inhibitors: pyrrolidin-2-ones with aminoindane and phenylpyrrolidine P4 motifs
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION | 5.75 | CRYSTALLISATION WAS CARRIED OUT USING VAPOUR DIFFUSION IN 2UL DROPS CONTAINING A 1:1 MIXTURE OF PROTEIN AND WELL SOLUTION. WELL SOLUTION CONTAINED 16-20% PEG 6K, 50 MM MES-NAOH (PH 5.5-6), 5 MM CACL2 AND 50 MM NACL. | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.29 | 45.86 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 56.727 | α = 90 |
| b = 72.012 | β = 90 |
| c = 78.689 | 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 | CCD | ADSC QUANTUM 4 | 2004-11-19 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | APS BEAMLINE 14-BM-D | APS | 14-BM-D | |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1.9 | 25 | 99.8 | 0.06 | 20.91 | 5.3 | 25983 | 23.477 | |||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 1.9 | 1.93 | 99.8 | 0.44 | 3.19 | 5.1 | |||||||||||||
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 Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | OTHER | THROUGHOUT | NONE | 1.9 | 20 | 24614 | 1318 | 100 | 0.1916 | 0.18897 | 0.1924 | 0.24123 | RANDOM | 28.508 | |||||
| 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] | |
| 0.52 | -1.36 | 0.83 | ||||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 25.705 |
| r_dihedral_angle_4_deg | 16.506 |
| r_dihedral_angle_3_deg | 10.119 |
| r_scangle_it | 4.7 |
| r_dihedral_angle_1_deg | 3.766 |
| r_scbond_it | 3.005 |
| r_mcangle_it | 2.37 |
| r_angle_refined_deg | 1.395 |
| r_mcbond_it | 1.223 |
| r_chiral_restr | 0.1 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2228 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 236 |
| Heterogen Atoms | 35 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| DENZO | data reduction |
| SCALEPACK | data scaling |
