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Crystal Structure of the Catalytic Subunit of the Circadian Regulator Casein Kinase 2 from Neurospora crassa
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details in silico model AlphaFold
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 7.5 293.15 0.1 M BES-Triethanolamine
10% w/v PEG 8000, 20% v/v 1,5-Pentanediol
0.001M Rubidium chloride
0.001M Strontium acetate
0.001M Cesium acetate
0.001M Barium acetate
Crystal Properties Matthews coefficient Solvent content 2.5 50.87
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 84.177 α = 90 b = 106.752 β = 104.407 c = 137.292 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 EIGER X 9M 2026-01-24 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS-II BEAMLINE 17-ID-1 0.9199 NSLS-II 17-ID-1
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 2.8 46.2 99.9 0.113 0.128 0.06 0.996 9.4 4.4 58064 69.35
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Rrim I (All) Rpim I (All) CC (Half) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.8 2.9 100 1.054 1.19 0.546 0.515 1.2 4.6
Refinement Statistics 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 (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT FREE R-VALUE 2.8 46.2 1.36 58047 2947 99.89 0.2173 0.2159 0.2157 0.2439 0.2436 74.41
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 11.4701 f_angle_d 0.6131 f_chiral_restr 0.0477 f_plane_restr 0.0054 f_bond_d 0.0039
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 15639 Nucleic Acid Atoms Solvent Atoms 46 Heterogen Atoms
Software Software Software Name Purpose PHENIX refinement XDS data reduction XSCALE data scaling PHASER phasing Coot model building