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X-RAY DIFFRACTION
Materials and Methods page
1AQ7
  •   Crystallization Hide
    Crystallization Experiments
    pH 8.5
    Details PROTEIN WAS CRYSTALLIZED FROM 10MG/ML TRYPSIN-LIGAND AGAINST 20% PEG-4000 AND 10% ISOPROPANOL IN 100MM PH 8.5 HEPES
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 48.3 α = 90
    b = 48.3 β = 90
    c = 145.2 γ = 120
     
    Space Group
    Space Group Name:    P 61
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 93
     
    Diffraction Detector
    Detector CCD
    Type PRINCETON 2K
    Collection Date 1996-05
     
    Diffraction Radiation
     
    Diffraction Source
    Source SYNCHROTRON
    Type CHESS BEAMLINE F1
    Wavelength 0.98
    Site CHESS
    Beamline F1
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.2
    Resolution(Low) 99
    Number Reflections(Observed) 8944
    Percent Possible(Observed) 92.0
    Redundancy 1.8
     
    High Resolution Shell Details
    Resolution(High) 2.2
    Resolution(Low) 2.28
    Percent Possible(All) 85.5
    Mean I Over Sigma(Observed) 12.1
    R-Sym I(Observed) 0.073
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.2
    Resolution(Low) 8.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 8944
    Number of Reflections(R-Free) 920
    Percent Reflections(Observed) 92.0
    R-Factor(Observed) 0.164
    R-Work 0.164
    R-Free 0.237
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 9.3
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.2
    Shell Resolution(Low) 2.3
    Number of Reflections(R-Free) 112
    Number of Reflections(R-Work) 871
    R-Factor(R-Work) 0.185
    R-Factor(R-Free) 0.254
    R-Free Error 0.024
    Percent Reflections(Observed) 83.5
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.16
    x_bond_d 0.011
    x_angle_deg 1.7
    x_dihedral_angle_d 25.66
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1674
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 212
     
     
  •   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