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X-RAY DIFFRACTION
Materials and Methods page
1EVR
  •   Crystallization Hide
    Crystallization Experiments
    Method SLOW COOLING
    pH 6.7
    Temperature 298.0
    Details 30 mg insulin, 3.0 ml 0.02 M HCl, 0.3 ml 0.15 M Zinc Acetate, 1.5 ml 0.2 M Sodium Citrate, 1.2 ml 5% Resorcinol in water, 0.36 gm NaCl, pH 6.7, SLOW COOLING, temperature 298.0K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 61.35 α = 90
    b = 61.93 β = 110.61
    c = 47.81 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 298
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS IIC
    Collection Date 1992-03-19
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RU200
    Wavelength 1.54178
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.9
    Resolution(Low) 44.75
    Number Reflections(All) 25793
    Number Reflections(Observed) 25793
    Percent Possible(Observed) 96.9
    R Merge I(Observed) 0.048
    B(Isotropic) From Wilson Plot 33.7
    Redundancy 3.2
     
    High Resolution Shell Details
    Resolution(High) 1.9
    Resolution(Low) 2.01
    Percent Possible(All) 93.1
     
     
  •   Refinement Hide
    Refinement Statistics
    reflnsShellList 1.9
    Resolution(Low) 44.75
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 25784
    Number of Reflections(Observed) 25784
    Number of Reflections(R-Free) 2538
    Percent Reflections(Observed) 97.0
    R-Factor(All) 0.179
    R-Factor(Observed) 0.179
    R-Work 0.179
    R-Free 0.218
    R-Free Selection Details random
     
    Temperature Factor Modeling
    Isotropic Thermal Model restrained
    Mean Isotropic B Value 41.2
    Anisotropic B[1][1] -1.76
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 3.14
    Anisotropic B[2][2] -5.33
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 7.09
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.9
    Shell Resolution(Low) 2.02
    Number of Reflections(R-Free) 408
    Number of Reflections(R-Work) 3664
    R-Factor(R-Work) 0.298
    R-Factor(R-Free) 0.307
    R-Free Error 0.015
    Percent Reflections(Observed) 93.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 4.67
    c_scbond_it 3.07
    c_mcangle_it 3.25
    c_mcbond_it 2.15
    c_improper_angle_d 0.84
    c_dihedral_angle_d 20.9
    c_angle_deg 1.31
    c_bond_d 0.01
     
    Coordinate Error
    Luzzati ESD(Observed) 0.21
    Luzzati Sigma A(Observed) 0.24
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.25
    Luzzati Sigma A(R-Free Set) 0.25
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2328
    Nucleic Acid Atoms 0
    Heterogen Atoms 69
    Solvent Atoms 159
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) R-AXIS
    Data Reduction (data scaling) R-AXIS
    Structure Solution CNS 1.0
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building CNS version: 1.0
    data reduction R-AXIS
    data collection R-AXIS