7ATV
Structure of protein kinase ck2 catalytic subunit (csnk2a2 gene product) in complex with the bivalent inhibitor KN2
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 293 | Reservoir composition: 28 % (w/v) PEG6000, 0.9 M LiCl, 0.1 M, Tris/HCl, pH 8.5; drop composition prior to equilibration: 0.01 ml reservoir solution + 0.02 ml CK2alpha' (mutant Cys336Ser) /inhibitor MB002 mixture (0.180 ml 6 mg/ml CK2alpha'Cys336Ser, 0.5 M NaCl, 25 mM Tris/HCl, pH 8.5, mixed and pre-equilibrated with 0.02 ml 10 mM MB002 in dimethyl sulfoxide); the initial inhibitor MB002 was replaced by the bivalent inhibitor KN2 by extensive crystal soaking. |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.66 | 53.73 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 46.783 | α = 66.804 |
b = 47.56 | β = 88.959 |
c = 50.998 | γ = 88.745 |
Symmetry | |
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Space Group | P 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS3 S 2M | 2019-06-16 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | BESSY BEAMLINE 14.2 | 0.91840 | BESSY | 14.2 |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | R Sym 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 | 0.964 | 33.281 | 78.3 | 0.051 | 0.051 | 0.059 | 0.03 | 0.999 | 12.4 | 3.7 | 190713 | 10.21 |
Highest Resolution Shell | |||||||||||||||||||
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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) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||
1 | 0.964 | 1.02 | 25.4 | 0.907 | 0.907 | 1.057 | 0.54 | 0.514 | 1.3 | 3.7 |
Refinement
Statistics | |||||||||||||||||||
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Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | AB INITIO PHASING | FREE R-VALUE | 0.98 | 33.28 | 1.96 | 189835 | 1931 | 81.83 | 0.127 | 0.1268 | 0.1411 | 16.36 |
Temperature Factor Modeling | ||||||
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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 | |
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Key | Refinement Restraint Deviation |
f_dihedral_angle_d | 20.9997 |
f_angle_d | 1.1711 |
f_chiral_restr | 0.0938 |
f_bond_d | 0.0116 |
f_plane_restr | 0.0093 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 2768 |
Nucleic Acid Atoms | |
Solvent Atoms | 444 |
Heterogen Atoms | 40 |
Software
Software | |
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Software Name | Purpose |
XDS | data reduction |
Aimless | data scaling |
PHASER | phasing |
PHENIX | refinement |
PHENIX | model building |