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X-RAY DIFFRACTION
Materials and Methods page
1A3W
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.5
    Details pH 6.5
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 109.4 α = 90
    b = 102.7 β = 112.3
    c = 110.9 γ = 90
     
    Space Group
    Space Group Name:    C 1 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 286
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Collection Date 1994-01-08
     
    Diffraction Radiation
    Monochromator GRAPHITE(002)
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RUH2R
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 3
    Resolution(Low) 100
    Number Reflections(Observed) 19294
    Percent Possible(Observed) 91.0
    Redundancy 3.4
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 3.0
    Resolution(Low) 100.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 17327
    Number of Reflections(R-Free) 1684
    Percent Reflections(Observed) 75.9
    R-Factor(Observed) 0.218
    R-Work 0.218
    R-Free 0.323
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 25.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.0
    Shell Resolution(Low) 3.14
    Number of Reflections(R-Free) 132
    Number of Reflections(R-Work) 1197
    R-Factor(R-Work) 0.298
    R-Factor(R-Free) 0.4214
    R-Free Error 0.037
    Percent Reflections(Observed) 46.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 0.93
    x_bond_d 0.009
    x_angle_deg 1.9
    x_dihedral_angle_d 27.7
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7519
    Nucleic Acid Atoms 0
    Heterogen Atoms 62
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.8
    Structure Refinement X-PLOR 3.8
     
    Software
    refinement X-PLOR version: 3.8
    model building X-PLOR version: 3.8