5M56

Monoclinic complex structure of human protein kinase CK2 catalytic subunit (isoform CK2alpha') with the inhibitor 4'-carboxy-6,8-chloro-flavonol (FLC21)


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3OFM 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP277PROTEIN STOCK SOLUTION: 5.5 MG/ML CK2ALPHA'-D39G-C336S IN 0.5 M NACL, 25 MM TRIS/HCL, PH 8.5; INHIBITOR STOCK SOLUTION: 10 MM INHIBITOR IN DMSO; PROTEIN/INHIBITOR COMPLEX SOLUTION: 90 MICROLITER PROTEIN STOCK SOLUTION + 10 MICROLITER INHIBITOR STOCK SOLUTION; RESERVOIR SOLUTION: 25 % PEG4000, 15 % glycerol, 0.17 M sodium acetate, 0.08 M Tris/HCl, pH 8.5; DROP SOLUTION BEFORE EQULIBRATION: 0.3 MICROLITER PROTEIN/INHIBITOR COMPLEX SOLUTION + 0.3 MICROLITER RESERVOIR SOLUTION
Crystal Properties
Matthews coefficientSolvent content
2.4850.46

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 69.341α = 90
b = 87.62β = 109.69
c = 72.977γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100PIXELDECTRIS PILATUS3 2M2012-10-20MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSLS BEAMLINE X06DA1.00000SLSX06DA

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)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
12.23744980.092680.092680.9969.763.33910829.76
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.2372.317900.65650.6851.782.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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-VALUE3OFM2.23743.811.3639099116198.330.16480.16350.2063
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_d11.667
f_angle_d0.516
f_chiral_restr0.042
f_plane_restr0.003
f_bond_d0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5537
Nucleic Acid Atoms
Solvent Atoms378
Heterogen Atoms72

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHENIXphasing