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Monoclinic complex structure of human protein kinase CK2 catalytic subunit (isoform CK2alpha') with the inhibitor 4'-carboxy-6,8-chloro-flavonol (FLC21)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 3OFM
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 277 PROTEIN 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 coefficient Solvent content 2.48 50.46
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 69.341 α = 90 b = 87.62 β = 109.69 c = 72.977 γ = 90
Symmetry Space Group P 1 21 1
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 2M 2012-10-20 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SLS BEAMLINE X06DA 1.00000 SLS X06DA
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) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 2.237 44 98 0.09268 0.09268 0.996 9.76 3.3 39108 29.76
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) Redundancy Number Unique Reflections (All) 1 2.237 2.317 90 0.6565 0.685 1.78 2.9
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 3OFM 2.237 43.81 1.36 39099 1161 98.33 0.1648 0.1635 0.1656 0.2063 0.2072
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 11.667 f_angle_d 0.516 f_chiral_restr 0.042 f_plane_restr 0.003 f_bond_d 0.002
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 5537 Nucleic Acid Atoms Solvent Atoms 378 Heterogen Atoms 72
Software Software Software Name Purpose PHENIX refinement XDS data reduction Aimless data scaling PHENIX phasing