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X-RAY DIFFRACTION
Materials and Methods page
1LU2
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.6
    Details 100 MM NACACO PH 6.6 15% (W/V) PEG-ME 5000 10 MM BLOOD GROUP A TRISACCHARIDE
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 96.73 α = 90
    b = 108 β = 124.67
    c = 80.96 γ = 90
     
    Space Group
    Space Group Name:    C 1 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Collection Date 1998-01
     
    Diffraction Radiation
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.8
    Resolution(Low) 15
    Number Reflections(Observed) 14331
    Percent Possible(Observed) 85.2
    R Merge I(Observed) 0.11
    B(Isotropic) From Wilson Plot 29.7
    Redundancy 2.7
     
    High Resolution Shell Details
    Resolution(High) 2.8
    Resolution(Low) 2.91
    Percent Possible(All) 85.8
    R Merge I(Observed) 0.274
    Mean I Over Sigma(Observed) 3.1
    Redundancy 1.8
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.8
    Resolution(Low) 15.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 14331
    Number of Reflections(R-Free) 1457
    Percent Reflections(Observed) 85.3
    R-Factor(Observed) 0.191
    R-Work 0.191
    R-Free 0.219
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 32.1
    Anisotropic B[1][1] 1.03
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] -0.76
    Anisotropic B[2][2] -0.16
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.87
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.8
    Shell Resolution(Low) 2.9
    Number of Reflections(R-Free) 147
    Number of Reflections(R-Work) 1299
    R-Factor(R-Work) 0.289
    R-Factor(R-Free) 0.324
    R-Free Error 0.027
    Percent Reflections(Observed) 85.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 3.67
    x_scbond_it 2.3
    x_mcangle_it 2.48
    x_mcbond_it 1.41
    x_improper_angle_d 0.74
    x_bond_d 0.008
    x_angle_deg 1.6
    x_dihedral_angle_d 29.1
     
    Coordinate Error
    Luzzati ESD(Observed) 0.29
    Luzzati Sigma A(Observed) 0.37
    Luzzati Resolution Cutoff(Low) 15.0
    Luzzati ESD(R-Free Set) 0.34
    Luzzati Sigma A(R-Free Set) 0.42
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3754
    Nucleic Acid Atoms 0
    Heterogen Atoms 34
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.851
    Structure Refinement X-PLOR 3.851
     
    Software
    refinement X-PLOR version: 3.851
    model building X-PLOR version: 3.851