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X-RAY DIFFRACTION
Materials and Methods page
1UGF
  •   Crystallization Hide
    Crystallization Experiments
    pH 8
    Details 50MM TRIS-HCL, PH=8.0, 1.95 - 3.9M NH4SO4
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 42.7 α = 90
    b = 41.7 β = 104.6
    c = 73 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Collection Date 1996-01-15
     
    Diffraction Radiation
     
    Diffraction Source
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2
    Resolution(Low) 7.2
    Number Reflections(Observed) 17315
    Percent Possible(Observed) 94.7
    B(Isotropic) From Wilson Plot 16.2
    Redundancy 2.0
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.05
    Percent Possible(All) 74.6
    Mean I Over Sigma(Observed) 3.2
    R-Sym I(Observed) 0.16
    Redundancy 2.4
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method DIFFERENCE FOURIER
    reflnsShellList 2.0
    Resolution(Low) 6.5
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 17315
    Number of Reflections(R-Free) 1631
    Percent Reflections(Observed) 94.7
    R-Factor(Observed) 0.173
    R-Work 0.173
    R-Free 0.232
     
    Temperature Factor Modeling
    Mean Isotropic B Value 17.5
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.09
    Number of Reflections(R-Free) 151
    Number of Reflections(R-Work) 1324
    R-Factor(R-Work) 0.24
    R-Factor(R-Free) 0.27
    Percent Reflections(Observed) 64.1
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.4
    x_bond_d 0.007
    x_angle_deg 1.5
    x_dihedral_angle_d 25.2
     
    Coordinate Error
    Luzzati Sigma A(Observed) 0.23
    Luzzati Resolution Cutoff(Low) 12.0
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2059
    Nucleic Acid Atoms 0
    Heterogen Atoms 5
    Solvent Atoms 105
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (AGROVATA, ROTAVATA)
    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