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X-RAY DIFFRACTION
Materials and Methods page
1IBL
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.5
    Temperature 277.0
    Details MPD, AMMONIUM CHLORIDE, POTASSIUM CHLORIDE, MAGNESIUM ACETATE, SODIUM CACODYLATE, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 277K, pH 6.50
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 400.8 α = 90
    b = 400.8 β = 90
    c = 175.88 γ = 90
     
    Space Group
    Space Group Name:    P 41 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 90
     
    Diffraction Detector
    Detector CCD
    Type CUSTOM-MADE
    Collection Date 2001-02-25
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type APS BEAMLINE 19-ID
    Wavelength 0.99187
    Wavelength List 0.99187
    Site APS
    Beamline 19-ID
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 3.11
    Resolution(Low) 316.23
    Number Reflections(All) 1170885
    Number Reflections(Observed) 240896
    Percent Possible(Observed) 95.1
    B(Isotropic) From Wilson Plot 72.88
    Redundancy 4.86
     
    High Resolution Shell Details
    Resolution(High) 3.11
    Resolution(Low) 3.22
    Percent Possible(All) 92.7
    Mean I Over Sigma(Observed) 2.8
    R-Sym I(Observed) 0.578
    Redundancy 3.51
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method DIFFERENCE FOURIER
    reflnsShellList 3.11
    Resolution(Low) 316.23
    Number of Reflections(all) 239810
    Number of Reflections(Observed) 228284
    Number of Reflections(R-Free) 11526
    Percent Reflections(Observed) 89.9
    R-Work 0.232
    R-Free 0.275
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 71.32
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.11
    Shell Resolution(Low) 3.22
    Number of Reflections(R-Free) 1043
    Number of Reflections(R-Work) 18748
    R-Factor(R-Work) 0.3234
    R-Factor(R-Free) 0.3712
    Percent Reflections(Observed) 78.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.54
    c_dihedral_angle_d 28.38
    c_angle_deg 1.21
    c_bond_d 0.007
     
    Coordinate Error
    Luzzati ESD(Observed) 0.38
    Luzzati Sigma A(Observed) 0.48
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.47
    Luzzati Sigma A(R-Free Set) 0.51
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 19197
    Nucleic Acid Atoms 32904
    Heterogen Atoms 169
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building CNS
    data reduction SCALEPACK
    data collection HKL2000