8Q9S

STRUCTURE OF PROTEIN KINASE CK2 CATALYTIC SUBUNIT (ISOFORM CK2ALPHA'; CSNK2A2 GENE PRODUCT) IN COMPLEX WITH THE INHIBITOR SGC-CK2-1


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6HMQ 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.5293THE CK2ALPHA' SOLUTION AFTER PROTEIN PURIFICATION (5 MG/ML CK2ALPHA' IN 500 MM NACL, 25 MM TRIS/HCl, PH 8.5) WAS MIXED IN 1:10 VOLUME RATIO WITH 10 MM SOLUTION OF THE INHIBITOR MB002 IN DMSO. THIS SOLUTION WAS MIXED IN 2:1 RATIO WITH RESERVOIR SOLUTION [900 MM LICL, 28 % (W/V) PEG 6000, 250 MM TRIS/HCL, PH 8.5] IN SITTING DROP PLATES (VAPOUR DIFFUSION). THE CRYSTAL GROWTH WAS INDUCED BY MICROSEEDING. THE CRYSTALS WERE OPTIMIZED BY MACROSEEDING. A CRYSTAL WAS PURGED TWICE WITH RESERVOIR SOLUTION BEFORE ADDING SGC-CK2-1 (10 MM IN DMSO) TO A FINAL CONCENTRATION OF 2.5 MM TO THE CRYSTAL MOTHOR LIQUOR FOR EXTENSIVE SOAKING AND REPLACEMENT OF THE INITIAL INHIBITOR MB002 BY SGC-CK2-1. ALL STEPS WERE PERFORMED AT A TEMPERATURE OF 293 K.
Crystal Properties
Matthews coefficientSolvent content
2.6253.05

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 46.217α = 66.83
b = 47.682β = 89.43
c = 50.562γ = 88.93
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS 6M-F2023-04-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONPETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)0.97624PETRA III, EMBL c/o DESYP13 (MX1)

Data Collection

Overall
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)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.35246.48365.30.0970.0970.1040.0570.9977.87.25670319.46
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)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.3521.51911.11.4821.4821.5980.5940.5891.67.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE1.35232.721.9656688198965.260.13660.13540.168826.58
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
KeyRefinement Restraint Deviation
f_dihedral_angle_d13.3932
f_angle_d0.8858
f_chiral_restr0.0762
f_plane_restr0.0101
f_bond_d0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2759
Nucleic Acid Atoms
Solvent Atoms243
Heterogen Atoms36

Software

Software
Software NamePurpose
autoPROCdata processing
PHENIXphasing
PHENIXrefinement