Structure-activity-relationship studies of guanidine-based ALDH1B1 inhibitors
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 7RAD | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 289 | PEG 4000, Glycerol, ethyleneglycol, bicine/tris | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.51 | 50.9 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 101.196 | α = 90 |
| b = 101.196 | β = 90 |
| c = 184.942 | γ = 120 |
| Symmetry | |
|---|---|
| Space Group | P 32 2 1 |
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 | DECTRIS EIGER2 XE 16M | Kirkpatrick-Baez (KB) optical mirrors | 2022-08-05 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL12-1 | 0.97946 | SSRL | BL12-1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | 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 | 2.1 | 48.8 | 100 | 0.148 | 0.99 | 8 | 8.7 | 64715 | 34.1 | ||||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||||
| 1 | 2.1 | 2.15 | 100 | 1.097 | 0.773 | 2.2 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 2.1 | 30.64 | 64588 | 3315 | 99.822 | 0.183 | 0.1803 | 0.1807 | 0.2369 | 0.2372 | Random Selection | 43.577 | |||||
| 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] | |
| 0.898 | 0.449 | 0.898 | -2.914 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 16.026 |
| r_dihedral_angle_3_deg | 15.838 |
| r_dihedral_angle_6_deg | 14.4 |
| r_lrange_it | 8.689 |
| r_scangle_it | 7.579 |
| r_dihedral_angle_1_deg | 7.206 |
| r_scbond_it | 5.269 |
| r_mcangle_it | 4.826 |
| r_mcbond_it | 3.633 |
| r_angle_refined_deg | 1.782 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 7704 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 337 |
| Heterogen Atoms | 169 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| DIALS | data reduction |
| Aimless | data scaling |
| PHASER | phasing |














