5M4F

Complex structure of human protein kinase CK2 catalytic subunit with the inhibitor 4'-carboxy-6,8-chloro-flavonol (FLC21) crystallized under low-salt conditions


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP293PROTEIN STOCK SOLUTION: 6 MG/ML CK2ALPHA1-335 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: 24 % PEG3350, 0.2 M KCl; DROP SOLUTION BEFORE EQULIBRATION: 0.5 MICROLITER PROTEIN/INHIBITOR COMPLEX SOLUTION + 0.5 MICROLITER RESERVOIR SOLUTION
Crystal Properties
Matthews coefficientSolvent content
1.9637.21

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 48.033α = 90
b = 79.569β = 90
c = 82.142γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCD2012-03-09MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONBESSY BEAMLINE 14.10.91841BESSY14.1

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
11.51941.51000.059140.059140.99915.824.14915115.41
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)
11.5191.574990.78740.6611.894

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-VALUE3NSZ1.51941.4641.3549147103199.740.16320.16280.1826
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_d17.442
f_angle_d1.29
f_chiral_restr0.085
f_bond_d0.014
f_plane_restr0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2788
Nucleic Acid Atoms
Solvent Atoms384
Heterogen Atoms43

Software

Software
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHENIXphasing