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X-RAY DIFFRACTION
Materials and Methods page
1CKI
  •   Crystallization Hide
    Crystallization Experiments
    Details MOLECULE: RECOMBINANT CASEIN KINASE I DELTA. CRYSTALS WERE GROWN BY THE SITTING DROP TECHNIQUE, MIXING 3 MICROLITER OF PROTEIN SOLUTION WITH 3 MICROLITER OF RESERVOIR SOLUTION. THE PROTEIN SOLUTION CONSISTED OF 14 MG/ML PROTEIN IN 50 MM TRIS-HCL (PH=7.5), 1 MM EDTA, 5 MM DTT, 0.2 M NACL, 2.5 MM BETA-OCTYL GLUCOSIDE. THE RESERVOIR SOLUTION CONTAINED 15% PEG 3400, 50 MM SODIUM CITRATE, 50 MM DIBASIC POTASSIUM PHOSPHATE, (PH=6.8). ROOM TEMPERATURE.
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 106.84 α = 90
    b = 115.47 β = 90
    c = 60.6 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS II
    Collection Date 1995-03-11
     
    Diffraction Radiation
     
    Diffraction Source
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.25
    Resolution(Low) 78
    Number Reflections(Observed) 28665
    Percent Possible(Observed) 76.0
    R Merge I(Observed) 0.088
    Redundancy 2.6
     
     
  •   Refinement Hide
    Refinement Statistics
    reflnsShellList 2.3
    Resolution(Low) 8.0
    Cut-off Sigma(F) 1.0
    Number of Reflections(Observed) 25781
    Percent Reflections(Observed) 78.0
    R-Factor(Observed) 0.193
    R-Work 0.193
    R-Free 0.279
     
    Temperature Factor Modeling
    Mean Isotropic B Value 38.6
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.169
    x_bond_d 0.008
    x_angle_deg 1.601
    x_dihedral_angle_d 21.72
     
    Coordinate Error
    Luzzati ESD(Observed) 0.25
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 4726
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 97
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) R-AXIS
    Structure Solution X-PLOR 3.1
    Structure Refinement X-PLOR 3.1
     
    Software
    refinement X-PLOR version: 3.1
    model building X-PLOR version: 3.1