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X-RAY DIFFRACTION
Materials and Methods page
1OS4
  •   Crystallization Hide
    Crystallization Experiments
    Method SLOW COOLING
    pH 6.3
    Temperature 295.0
    Details hydrochloric acid, zinc acetate, sodium citrate, acetone, pH 6.3, SLOW COOLING, temperature 295.K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 33.9 α = 115.12
    b = 49.44 β = 104.01
    c = 49.26 γ = 102.69
     
    Space Group
    Space Group Name:    P 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 295
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS IV
    Details mirrors
    Collection Date 2002-06-24
     
    Diffraction Radiation
    Monochromator Osmic confocal mirrors
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.25
    Resolution(Low) 41.64
    Number Reflections(All) 15512
    Number Reflections(Observed) 10252
    Percent Possible(Observed) 82.8
    R Merge I(Observed) 0.07
    B(Isotropic) From Wilson Plot 42.7
    Redundancy 1.5
     
    High Resolution Shell Details
    Resolution(High) 2.25
    Resolution(Low) 2.33
    Percent Possible(All) 85.9
    R Merge I(Observed) 0.289
    Mean I Over Sigma(Observed) 1.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.25
    Resolution(Low) 41.64
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 10239
    Number of Reflections(Observed) 10239
    Number of Reflections(R-Free) 1053
    Percent Reflections(Observed) 82.6
    R-Work 0.243
    R-Free 0.295
    R-Free Selection Details Random
     
    Temperature Factor Modeling
    Isotropic Thermal Model Isotropic
    Mean Isotropic B Value 44.8
    Anisotropic B[1][1] -0.76
    Anisotropic B[1][2] 0.3
    Anisotropic B[1][3] 1.46
    Anisotropic B[2][2] 0.0
    Anisotropic B[2][3] 4.99
    Anisotropic B[3][3] 0.76
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.25
    Shell Resolution(Low) 2.39
    Number of Reflections(Observed) 1758
    Number of Reflections(R-Free) 172
    Number of Reflections(R-Work) 1586
    R-Factor(R-Work) 0.31
    R-Factor(R-Free) 0.376
    R-Free Error 0.029
    Percent Reflections(Observed) 86.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 2.78
    c_scbond_it 1.94
    c_mcangle_it 2.54
    c_mcbond_it 1.52
    c_improper_angle_d 0.81
    c_dihedral_angle_d 22.2
    c_angle_deg 1.2
    c_bond_d 0.007
     
    Coordinate Error
    Luzzati ESD(Observed) 0.31
    Luzzati Sigma A(Observed) 0.34
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.44
    Luzzati Sigma A(R-Free Set) 0.44
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2259
    Nucleic Acid Atoms 0
    Heterogen Atoms 2
    Solvent Atoms 16
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) CRYSTALCLEAR (MSC/RIGAKU)
    Data Reduction (data scaling) D*TREK
    Structure Solution CNS
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building CNS
    data reduction d*Trek
    data collection Crystalclear