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X-RAY DIFFRACTION
Materials and Methods page
1GNG
  •   Crystallization Hide
    Crystallization Experiments
    pH 7.5
    Details 1.6M AMMONIUM SULPHATE, 0.1M TRIS PH7.5, pH 7.50
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 153.05 α = 90
    b = 153.05 β = 90
    c = 213.35 γ = 120
     
    Space Group
    Space Group Name:    H 3 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Collection Date 2000-04-15
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-2
    Wavelength 0.9326
    Site ESRF
    Beamline ID14-2
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.6
    Resolution(Low) 25
    Number Reflections(Observed) 29716
    Percent Possible(Observed) 100.0
    R Merge I(Observed) 0.066
    B(Isotropic) From Wilson Plot 52.7
    Redundancy 11.2
     
    High Resolution Shell Details
    Resolution(High) 2.6
    Resolution(Low) 2.64
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.448
    Mean I Over Sigma(Observed) 5.0
    Redundancy 11.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.6
    Resolution(Low) 18.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 29649
    Percent Reflections(Observed) 99.9
    R-Factor(Observed) 0.196
    R-Work 0.196
    R-Free 0.262
    R-Free Selection Details SHELLS
     
    Temperature Factor Modeling
    Mean Isotropic B Value 53.5
    Anisotropic B[1][1] -4.93
    Anisotropic B[1][2] 4.15
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -4.93
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 9.86
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.6
    Shell Resolution(Low) 2.76
    Number of Reflections(R-Free) 224
    Number of Reflections(R-Work) 4697
    R-Factor(R-Work) 0.291
    R-Factor(R-Free) 0.321
    R-Free Error 0.021
    Percent Reflections(Observed) 100.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.85
    c_bond_d 0.007
    c_angle_deg 1.3
    c_dihedral_angle_d 22.4
     
    Coordinate Error
    Luzzati ESD(Observed) 0.31
    Luzzati Sigma A(Observed) 0.39
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.41
    Luzzati Sigma A(R-Free Set) 0.43
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 6059
    Nucleic Acid Atoms 0
    Heterogen Atoms 28
    Solvent Atoms 140
     
     
  •   Software and Computing Hide
    Computing
    Structure Solution AMORE
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building AMORE