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An Information Portal to 105339 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1AZ5
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.5
    Details 100 MM SODIUM CACODYLATE, PH 6.5, 0.3 M NACL
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 45.4 α = 90
    b = 45.4 β = 90
    c = 87.9 γ = 120
     
    Space Group
    Space Group Name:    P 32 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 298
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Details COLLIMATOR
    Collection Date 1994-10
     
    Diffraction Radiation
    Monochromator GRAPHITE(002)
     
    Diffraction Source
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2
    Resolution(Low) 30
    Number Reflections(Observed) 7300
    Percent Possible(Observed) 97.0
    R Merge I(Observed) 0.086
    B(Isotropic) From Wilson Plot 14.0
    Redundancy 5.0
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.06
    Percent Possible(All) 94.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 7.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 7110
    Number of Reflections(R-Free) 775
    Percent Reflections(Observed) 94.4
    R-Factor(Observed) 0.204
    R-Work 0.204
    R-Free 0.266
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model X-PLOR RESTRAINED INDIVID B-FACTORS
    Mean Isotropic B Value 23.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.03
    Number of Reflections(R-Free) 40
    Number of Reflections(R-Work) 284
    R-Factor(R-Work) 0.254
    R-Factor(R-Free) 0.267
    R-Free Error 0.04
    Percent Reflections(Observed) 92.5
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.4
    x_bond_d 0.011
    x_angle_deg 1.8
    x_dihedral_angle_d 27.9
     
    Coordinate Error
    Luzzati ESD(Observed) 0.25
    Luzzati Sigma A(Observed) 0.2
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.31
    Luzzati Sigma A(R-Free Set) 0.21
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 729
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 19
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR
    Structure Refinement X-PLOR
     
    Software
    refinement X-PLOR
    model building X-PLOR