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X-RAY DIFFRACTION
Materials and Methods page
1B0D
  •   Crystallization Hide
    Crystallization Experiments
    Method vapor diffusion - hanging drop
    pH 4.5
    Temperature 291.0
    Details THE CRYSTAL WAS OBTAINED IN PRESENCE OF NAPTS WITH A FINAL PROTEIN CONCENTRATION OF 40.5 MG/ML IN HANGING DROPS USING VAPOR DIFFUSION METHOD. THE EQUILIBRATION AT 291K WAS DONE AGAINST A RESERVOIR SOLUTION CONTAINING 90 MM NAPTS, 50 MM SODIUM ACETATE ADJUSTED AT PH 4.5., vapor diffusion - hanging drop
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 79.06 α = 90
    b = 79.06 β = 90
    c = 37.97 γ = 90
     
    Space Group
    Space Group Name:    P 43 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS II
    Collection Date 1994-04-01
     
    Diffraction Radiation
    Diffraction Protocol MONOCHROMATIC
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RU200
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.85
    Resolution(Low) 13.5
    Number Reflections(Observed) 10462
    Percent Possible(Observed) 97.5
    B(Isotropic) From Wilson Plot 21.4
    Redundancy 6.6
     
    High Resolution Shell Details
    Resolution(High) 1.85
    Resolution(Low) 1.9
    Percent Possible(All) 85.8
    Mean I Over Sigma(Observed) 4.5
    R-Sym I(Observed) 0.135
    Redundancy 4.1
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method OTHER
    reflnsShellList 1.84
    Resolution(Low) 14.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 10461
    Number of Reflections(R-Free) 1082
    Percent Reflections(Observed) 96.1
    R-Work 0.202
    R-Free 0.241
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 18.7
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.84
    Shell Resolution(Low) 1.92
    Number of Reflections(R-Free) 104
    Number of Reflections(R-Work) 1067
    R-Factor(R-Work) 0.332
    R-Factor(R-Free) 0.354
    Percent Reflections(Observed) 79.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 4.72
    x_scbond_it 2.94
    x_mcangle_it 2.39
    x_mcbond_it 1.52
    x_improper_angle_d 1.15
    x_bond_d 0.006
    x_angle_deg 1.33
    x_dihedral_angle_d 23.22
     
    Coordinate Error
    Luzzati ESD(Observed) 0.21
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.25
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1001
    Nucleic Acid Atoms 0
    Heterogen Atoms 11
    Solvent Atoms 86
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4
    Structure Solution CCP4
    Structure Refinement X-PLOR 3.1
     
    Software
    refinement X-PLOR version: 3.1
    model building CCP4
    data reduction CCP4
    data collection MOSFLM