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X-RAY DIFFRACTION
Materials and Methods page
1AZV
  •   Crystallization Hide
    Crystallization Experiments
    pH 5.5
    Details 20 MG/ML PROTEIN IN 10MM ACETATE PH 5.5 MIXED WITH PRECIPITATING SOLUTION OF 100 MM ACETATE PH 4.6, 2.0 M AMMONIUM SULFATE
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 67.2 α = 90
    b = 67.2 β = 90
    c = 83.8 γ = 90
     
    Space Group
    Space Group Name:    P 41
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 300
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Details MIRRORS
    Collection Date 1997-01
     
    Diffraction Radiation
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RUH2R
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.9
    Resolution(Low) 100
    Number Reflections(Observed) 29129
    Percent Possible(Observed) 99.1
    B(Isotropic) From Wilson Plot 29.3
    Redundancy 3.5
     
    High Resolution Shell Details
    Resolution(High) 1.9
    Resolution(Low) 1.97
    Percent Possible(All) 99.6
    Mean I Over Sigma(Observed) 1.8
    R-Sym I(Observed) 0.383
    Redundancy 2.5
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.9
    Resolution(Low) 10.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 28975
    Number of Reflections(R-Free) 2889
    Percent Reflections(Observed) 99.3
    R-Factor(Observed) 0.202
    R-Work 0.202
    R-Free 0.244
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 29.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.9
    Shell Resolution(Low) 1.99
    Number of Reflections(R-Free) 343
    Number of Reflections(R-Work) 3265
    R-Factor(R-Work) 0.344
    R-Factor(R-Free) 0.368
    R-Free Error 0.02
    Percent Reflections(Observed) 98.6
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.47
    x_bond_d 0.011
    x_angle_deg 1.74
    x_dihedral_angle_d 26.7
     
    Coordinate Error
    Luzzati Resolution Cutoff(Low) 10.0
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2234
    Nucleic Acid Atoms 0
    Heterogen Atoms 4
    Solvent Atoms 176
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    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
    data reduction SCALEPACK
    data collection DENZO