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X-RAY DIFFRACTION
Materials and Methods page
1UGD
  •   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 RAXIS IIC
    Collection Date 1996-01-06
     
    Diffraction Radiation
     
    Diffraction Source
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2
    Resolution(Low) 8.2
    Number Reflections(Observed) 17315
    Percent Possible(Observed) 96.7
    B(Isotropic) From Wilson Plot 12.8
    Redundancy 2.0
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.05
    Percent Possible(All) 77.3
    Mean I Over Sigma(Observed) 2.8
    R-Sym I(Observed) 0.229
    Redundancy 1.7
     
     
  •   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) 40095
    Number of Reflections(R-Free) 1723
    Percent Reflections(Observed) 96.7
    R-Factor(Observed) 0.176
    R-Work 0.176
    R-Free 0.255
     
    Temperature Factor Modeling
    Mean Isotropic B Value 15.4
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.95
    Shell Resolution(Low) 2.04
    Number of Reflections(R-Free) 154
    Number of Reflections(R-Work) 1425
    R-Factor(R-Work) 0.29
    R-Factor(R-Free) 0.32
    Percent Reflections(Observed) 63.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.5
    x_bond_d 0.009
    x_angle_deg 1.6
    x_dihedral_angle_d 25.5
     
    Coordinate Error
    Luzzati Sigma A(Observed) 0.2
    Luzzati Resolution Cutoff(Low) 12.0
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2058
    Nucleic Acid Atoms 0
    Heterogen Atoms 1
    Solvent Atoms 121
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) 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