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X-RAY DIFFRACTION
Materials and Methods page
1OKC
  •   Crystallization Hide
    Crystallization Experiments
    pH 8.5
    Details 30% JEFFAMINE600, 5MM NA CITRATE, 100MM TRIS PH 8.5
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 85.44 α = 90
    b = 83.46 β = 90
    c = 49.92 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Collection Date 2001-06-15
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID29
    Wavelength 0.72
    Site ESRF
    Beamline ID29
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.2
    Resolution(Low) 15
    Number Reflections(Observed) 18544
    Percent Possible(Observed) 99.6
    R Merge I(Observed) 0.083
    B(Isotropic) From Wilson Plot 20.1
    Redundancy 4.8
     
    High Resolution Shell Details
    Resolution(High) 2.2
    Resolution(Low) 2.26
    Percent Possible(All) 99.6
    R Merge I(Observed) 0.51
    Mean I Over Sigma(Observed) 1.4
    Redundancy 4.8
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR
    reflnsShellList 2.2
    Resolution(Low) 14.99
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 18544
    Number of Reflections(R-Free) 894
    Percent Reflections(Observed) 99.2
    R-Factor(Observed) 0.22
    R-Work 0.22
    R-Free 0.266
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 40.4
    Anisotropic B[1][1] 3.63
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 1.24
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -4.86
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.2
    Shell Resolution(Low) 2.34
    Number of Reflections(R-Free) 151
    Number of Reflections(R-Work) 2885
    R-Factor(R-Work) 0.234
    R-Factor(R-Free) 0.283
    R-Free Error 0.023
    Percent Reflections(Observed) 100.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 11.75
    c_scbond_it 9.95
    c_mcangle_it 2.15
    c_mcbond_it 1.39
    c_improper_angle_d 0.96
    c_bond_d 0.007
    c_angle_deg 1.1
    c_dihedral_angle_d 17.9
     
    Coordinate Error
    Luzzati ESD(Observed) 0.26
    Luzzati Sigma A(Observed) 0.14
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.33
    Luzzati Sigma A(R-Free Set) 0.18
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2254
    Nucleic Acid Atoms 0
    Heterogen Atoms 349
    Solvent Atoms 83
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) CCP4
    Structure Solution CCP4
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building CCP4