Crystal structure of hCA II in complex with an 1-Aryl-6,7-dimethoxy-3,4-dihydroisoquinoline-2(1H)-sulfonamide inhibitor
X-RAY DIFFRACTION
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 293 | 1.3 M sodium citrate and 0.1 M Tris-HCl, pH 8.5 | |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.07 | 40.66 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 42.333 | α = 90 |
| b = 41.383 | β = 104.18 |
| c = 71.942 | γ = 90 |
| Symmetry | |
|---|---|
| Space Group | P 1 21 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 PILATUS 6M | 2021-12-13 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | ELETTRA BEAMLINE 5.2R | 1.0 | ELETTRA | 5.2R |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim 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 | 1.15 | 50 | 95.1 | 0.086 | 0.094 | 0.038 | 0.999 | 9.9 | 5.7 | 82177 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 1.15 | 1.17 | 89.4 | 0.672 | 0.773 | 0.372 | 0.678 | 4 | |||||||||||
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 (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | |||||
| X-RAY DIFFRACTION | FOURIER SYNTHESIS | THROUGHOUT | 1.15 | 41 | 79780 | 1970 | 95.16 | 0.13285 | 0.13223 | 0.1399 | 0.15897 | 0.1609 | RANDOM | 12.927 | |||||
| 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] | |
| 0.27 | -0.1 | -0.24 | 0.02 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 34.323 |
| r_dihedral_angle_4_deg | 23.519 |
| r_dihedral_angle_3_deg | 11.8 |
| r_rigid_bond_restr | 10.823 |
| r_dihedral_angle_1_deg | 6.933 |
| r_scbond_other | 6.572 |
| r_scbond_it | 6.565 |
| r_scangle_other | 6.344 |
| r_long_range_B_refined | 4.34 |
| r_long_range_B_other | 4.316 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2072 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 231 |
| Heterogen Atoms | 32 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| SCALEPACK | data scaling |
| PDB_EXTRACT | data extraction |
| HKL-3000 | data reduction |
| REFMAC | phasing |














