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X-RAY DIFFRACTION
Materials and Methods page
1PRG
  •   Crystallization Hide
    Crystallization Experiments
    pH 7.5
    Details VAPOR DIFFUSION METHOD, HANGING DROP TECHNIQUE, 1.4M SODIUM CITRATE, 100MM HEPES, PH 7.5
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 91.87 α = 90
    b = 62 β = 102.66
    c = 118.34 γ = 90
     
    Space Group
    Space Group Name:    C 1 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 103
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Details MIRORS
    Collection Date 1997-06-01
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RU200
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 2.2
    Resolution(Low) 60
    Number Reflections(Observed) 89611
    Percent Possible(Observed) 85.0
    R Merge I(Observed) 0.052
    B(Isotropic) From Wilson Plot 27.4
    Redundancy 4.1
     
    High Resolution Shell Details
    Resolution(High) 2.2
    Resolution(Low) 2.3
    Percent Possible(All) 68.0
    R Merge I(Observed) 0.052
    Mean I Over Sigma(Observed) 6.3
    R-Sym I(Observed) 0.264
    Redundancy 1.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR
    reflnsShellList 2.2
    Resolution(Low) 60.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 27817
    Number of Reflections(R-Free) 1122
    Percent Reflections(Observed) 83.8
    R-Factor(Observed) 0.246
    R-Work 0.246
    R-Free 0.318
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 50.6
    Anisotropic B[1][1] -1.17
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] -1.61
    Anisotropic B[2][2] -12.46
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 13.62
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.2
    Shell Resolution(Low) 2.34
    Number of Reflections(R-Free) 137
    Number of Reflections(R-Work) 3391
    R-Factor(R-Work) 0.299
    R-Factor(R-Free) 0.342
    R-Free Error 0.029
    Percent Reflections(Observed) 64.6
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.71
    c_bond_d 0.006
    c_angle_deg 1.3
    c_dihedral_angle_d 18.0
     
    Coordinate Error
    Luzzati ESD(Observed) 0.3
    Luzzati Sigma A(Observed) 0.22
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.4
    Luzzati Sigma A(R-Free Set) 0.24
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 4332
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 565
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution PHASES, CCP4
    Structure Refinement CNS 0.0.3
     
    Software
    refinement CNS version: 0. 0.3
    model building CCP4
    model building PHASES