Crystal structure of chimeric carbonic anhydrase I with 3-(Benzylamino)-2,5,6-trifluoro-4-[(2-hydroxyethyl)sulfonyl]benzenesulfonamide
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 4HT0 | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | EVAPORATION | 7 | 291 | Crystallization buffer: 0.1M sodium bicine (pH 9.0), 0.2M ammonium sulfate and 2M sodium malonate (pH 7.0) |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.06 | 40.4 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 42.094 | α = 90 |
| b = 41.426 | β = 104.35 |
| c = 71.654 | 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 PILATUS3 6M | 2013-05-22 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1) | 0.976300 | PETRA III, EMBL c/o DESY | P13 (MX1) |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym I (Observed) | Rrim I (All) | Rpim I (All) | 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 | 0.988 | 41.426 | 96.4 | 0.039 | 0.056 | 0.03 | 14.1 | 3.2 | 128596 | 128596 | |||||||||
| Highest Resolution Shell | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | R-Sym I (Observed) | Rrim I (All) | Rpim I (All) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
| 1 | 0.99 | 1.04 | 85 | 0.262 | 0.262 | 0.353 | 0.204 | 2.9 | 2.8 | ||||||||||
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 | 4HT0 | 0.99 | 39.72 | 115769 | 12806 | 96.24 | 0.1268 | 0.1244 | 0.12 | 0.1484 | 0.15 | RANDOM | 14.434 | ||||
| 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] | |
| 0.1 | 0.14 | -0.09 | 0.06 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 37.498 |
| r_sphericity_free | 22.998 |
| r_dihedral_angle_4_deg | 19.951 |
| r_sphericity_bonded | 14.126 |
| r_dihedral_angle_3_deg | 12.183 |
| r_rigid_bond_restr | 9.464 |
| r_dihedral_angle_1_deg | 7.151 |
| r_angle_refined_deg | 2.834 |
| r_chiral_restr | 0.268 |
| r_bond_refined_d | 0.025 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2063 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 333 |
| Heterogen Atoms | 134 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| REFMAC | refinement |
| SCALA | data scaling |
| PDB_EXTRACT | data extraction |
| XDS | data reduction |
| MOLREP | phasing |














