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X-RAY DIFFRACTION
Materials and Methods page
1AZF
  •   Crystallization Hide
    Crystallization Experiments
    pH 4.6
    Details pH 4.6
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 79.14 α = 90
    b = 79.14 β = 90
    c = 38.02 γ = 90
     
    Space Group
    Space Group Name:    P 43 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 298
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Collection Date 1995-08
     
    Diffraction Radiation
     
    Diffraction Source
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 1.65
    Resolution(Low) 55.85
    Number Reflections(Observed) 14036
    Percent Possible(Observed) 98.2
    R Merge I(Observed) 0.053
     
    High Resolution Shell Details
    Resolution(High) 1.65
    Resolution(Low) 2.0
    R Merge I(Observed) 0.203
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.8
    Resolution(Low) 6.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 11075
    Number of Reflections(R-Free) 889
    Percent Reflections(Observed) 98.0
    R-Factor(Observed) 0.193
    R-Work 0.193
    R-Free 0.24
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 28.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.8
    Shell Resolution(Low) 1.88
    R-Factor(R-Work) 0.301
    R-Factor(R-Free) 0.349
    Percent Reflections(Observed) 94.4
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 2.1
    x_bond_d 0.012
    x_angle_deg 2.16
    x_dihedral_angle_d 22.27
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1001
    Nucleic Acid Atoms 0
    Heterogen Atoms 4
    Solvent Atoms 85
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.1
    Structure Refinement X-PLOR 3.1
     
    Software
    refinement X-PLOR version: 3.1
    model building X-PLOR version: 3.1
    data reduction SCALEPACK
    data collection DENZO