Calcium-Dependent Protein Kinase 1 from Toxoplasma gondii (TgCDPK1) in complex with non-specific inhibitor WHI-P180
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 3I7C | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 298 | 27% PEG 3350, 0.275 M ammonium citrate, 5 mM DTT, 2.3 mM WHI-P180; frozen directly in LN2, pH 6.5, vapor diffusion, sitting drop, temperature 298K |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.04 | 39.56 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 48.272 | α = 90 |
| b = 72.297 | β = 103.61 |
| c = 67.174 | 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 | CCD | MARMOSAIC 325 mm CCD | 2009-06-18 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | SSRL BEAMLINE BL9-2 | 0.97946 | SSRL | BL9-2 |
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 | 1.88 | 50 | 99.2 | 0.048 | 13.4 | 4.2 | 36621 | 5 | |||||||||||
| 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) | |||||||||||
| 1.88 | 1.95 | 92.8 | 0.481 | 2.29 | 4.1 | 3401 | |||||||||||||
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 | FOURIER SYNTHESIS | THROUGHOUT | 3i7c | 1.88 | 43.22 | 36601 | 1873 | 99.82 | 0.1751 | 0.1726 | 0.17 | 0.2218 | 0.22 | RANDOM | 37.7362 | ||||
| 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] | |
| 0.56 | 1.16 | -0.87 | 0.86 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| r_dihedral_angle_2_deg | 36.453 |
| r_dihedral_angle_4_deg | 17.901 |
| r_dihedral_angle_3_deg | 14.115 |
| r_scangle_it | 6.382 |
| r_dihedral_angle_1_deg | 5.083 |
| r_scbond_it | 4.193 |
| r_mcangle_it | 3.428 |
| r_mcbond_it | 2.228 |
| r_angle_refined_deg | 1.285 |
| r_angle_other_deg | 0.853 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 3674 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 230 |
| Heterogen Atoms | 22 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| DENZO | data reduction |
| SCALEPACK | data scaling |
| REFMAC | refinement |
| PDB_EXTRACT | data extraction |
| Blu-Ice | data collection |
| HKL-2000 | data reduction |
| HKL-2000 | data scaling |
| REFMAC | phasing |














