Cocrystal structure of cAMP-dependent Protein Kinase (PKA) in complex with Fasudil (M77)
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details |
| experimental model | PDB | 1Q8W | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 6.9 | 277.15 | Drop: 10 mg/ml PKA (0.240 mM) 30 mM MBT (MES/Bis-Tris Puffer pH 6.9) 1 mM DTT 0.1 mM EDTA 75 mM LiCl 0.03 mM Mega 8 0.07mM PKI (Sigma: P7739) 1.2 mM ligand solved in DMSO (50 mM Stock) Reservoir: 18% Methanol 0.003 mL drop volume, 0.4 mL reservoir volume |
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content |
| 2.15 | 54.12 |
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) |
| a = 58.394 | α = 90 |
| b = 72.832 | β = 90 |
| c = 109.272 | 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 | PIXEL | DECTRIS PILATUS3 6M | 2014-11-23 | M | SINGLE WAVELENGTH | ||||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
| 1 | SYNCHROTRON | BESSY BEAMLINE 14.1 | 0.91841 | BESSY | 14.1 |
Data Collection
| Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Sym 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 | 1.43 | 50 | 97.9 | 0.041 | 17.09 | 4 | 84420 | ||||||||||||
| 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 | 1.43 | 1.52 | 95.8 | 0.466 | 2.49 | 3.97 | |||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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) | Mean Isotropic B | ||||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | FREE R-VALUE | 1Q8W | 1.433 | 39.896 | 1.36 | 84413 | 4223 | 97.84 | 0.1344 | 0.1327 | 0.13 | 0.1659 | 0.17 | |||||
| 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] | |
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation |
| f_dihedral_angle_d | 18.257 |
| f_angle_d | 0.944 |
| f_chiral_restr | 0.074 |
| f_bond_d | 0.008 |
| f_plane_restr | 0.007 |
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number |
| Protein Atoms | 2979 |
| Nucleic Acid Atoms | |
| Solvent Atoms | 436 |
| Heterogen Atoms | 34 |
Software
| Software | |
|---|---|
| Software Name | Purpose |
| PHENIX | refinement |
| PHASER | phasing |
| XDS | data reduction |
| XDS | data scaling |














