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X-RAY DIFFRACTION
Materials and Methods page
2TIO
  •   Crystallization Hide
    Crystallization Experiments
    Method vapor diffusion - hanging drop
    pH 6
    Details HANGING DROP METHOD: THE PROTEIN WAS DISSOLVED IN 33 MM TRIS-HCL BUFFER (PH 5.8) IN THE PRESENCE OF 4 MM CACL2 AND 90 MM BENZAMIDINE TO THE CONCENTRATION 40 MG/ML. THE PRECIPITANT AND RESERVOIR SOLUTION CONTAINED 2.1 M (NH4)2SO4, 4 MM CACL2, 33 MM TRIS-HCL AT PH 6.0., vapor diffusion - hanging drop
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 63.02 α = 90
    b = 63.78 β = 90
    c = 69.04 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Collection Date 1997-11-01
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 1.93
    Resolution(Low) 70
    Number Reflections(Observed) 18025
    Percent Possible(Observed) 84.0
    R Merge I(Observed) 0.073
    Redundancy 3.9
     
    High Resolution Shell Details
    Resolution(High) 1.93
    Resolution(Low) 2.0
    Percent Possible(All) 63.0
    Mean I Over Sigma(Observed) 2.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.93
    Resolution(Low) 8.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 18025
    Number of Reflections(R-Free) 1743
    Percent Reflections(Observed) 83.5
    R-Factor(Observed) 0.179
    R-Work 0.179
    R-Free 0.228
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 21.9
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.93
    Shell Resolution(Low) 2.02
    Number of Reflections(R-Free) 156
    Number of Reflections(R-Work) 1466
    R-Factor(R-Work) 0.254
    R-Factor(R-Free) 0.28
    R-Free Error 0.022
    Percent Reflections(Observed) 58.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.15
    x_bond_d 0.006
    x_angle_deg 1.39
    x_dihedral_angle_d 25.9
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1629
    Nucleic Acid Atoms 0
    Heterogen Atoms 31
    Solvent Atoms 165
     
     
  •   Software and Computing Hide
    Computing
    Structure Refinement X-PLOR 3.1
     
    Software
    refinement X-PLOR version: 3.1