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X-RAY DIFFRACTION
Materials and Methods page
1IAL
  •   Crystallization Hide
    Crystallization Experiments
    pH 6
    Details pH 6.0
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 78.55 α = 90
    b = 89.68 β = 90
    c = 100.56 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 288
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Collection Date 1998-05
     
    Diffraction Radiation
    Monochromator GRAPHITE(002)
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RUH2R
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.5
    Resolution(Low) 99
    Number Reflections(Observed) 144864
    Percent Possible(Observed) 97.0
    R Merge I(Observed) 0.123
    B(Isotropic) From Wilson Plot 32.0
    Redundancy 5.9
     
    High Resolution Shell Details
    Resolution(High) 2.5
    Resolution(Low) 2.59
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.631
    Mean I Over Sigma(Observed) 1.7
    Redundancy 2.8
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.5
    Resolution(Low) 40.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 24595
    Number of Reflections(R-Free) 1686
    Percent Reflections(Observed) 97.6
    R-Factor(Observed) 0.189
    R-Work 0.189
    R-Free 0.24
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 40.0
    Anisotropic B[1][1] 0.0
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.0
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 0.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.5
    Shell Resolution(Low) 2.59
    Number of Reflections(R-Free) 163
    Number of Reflections(R-Work) 2311
    R-Factor(R-Work) 0.284
    R-Factor(R-Free) 0.321
    R-Free Error 0.025
    Percent Reflections(Observed) 99.6
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 6.88
    x_scbond_it 4.77
    x_mcangle_it 4.29
    x_mcbond_it 2.81
    x_improper_angle_d 0.64
    x_bond_d 0.005
    x_angle_deg 1.1
    x_dihedral_angle_d 22.3
     
    Coordinate Error
    Luzzati ESD(Observed) 0.27
    Luzzati Sigma A(Observed) 0.3
    Luzzati Resolution Cutoff(Low) 40.0
    Luzzati ESD(R-Free Set) 0.35
    Luzzati Sigma A(R-Free Set) 0.38
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3350
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 179
     
     
  •   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