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X-RAY DIFFRACTION
Materials and Methods page
1A4O
  •   Crystallization Hide
    Crystallization Experiments
    pH 8.5
    Details pH 8.5
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 94.9 α = 90
    b = 94.9 β = 90
    c = 236.7 γ = 120
     
    Space Group
    Space Group Name:    P 65
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Collection Date 1995-02
     
    Diffraction Radiation
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X12C
    Wavelength 1.01
    Site NSLS
    Beamline X12C
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2.8
    Resolution(Low) 10
    Number Reflections(Observed) 28237
    Percent Possible(Observed) 96.4
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIRAS
    reflnsShellList 2.8
    Resolution(Low) 10.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 28237
    Percent Reflections(Observed) 96.4
    R-Factor(Observed) 0.31
    R-Work 0.31
    R-Free 0.345
    R-Free Selection Details BY RESOLUTION SHELLS
     
    Temperature Factor Modeling
    Mean Isotropic B Value 33.9
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.8
    Shell Resolution(Low) 2.93
    Number of Reflections(R-Work) 3040
    R-Factor(R-Work) 0.39
    R-Factor(R-Free) 0.411
    Percent Reflections(Observed) 87.5
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.56
    x_bond_d 0.01
    x_angle_deg 1.84
    x_dihedral_angle_d 22.18
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 6360
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Refinement X-PLOR
     
    Software
    refinement X-PLOR