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X-RAY DIFFRACTION
Materials and Methods page
1GQ8
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.5
    Details 0.2M NA ACETATE, 0.1M NA CACODYLATE PH 6.5, 30% PEG8000
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 77.69 α = 90
    b = 89.41 β = 90
    c = 49.5 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector MAR345
    Type MARRESEARCH
    Collection Date 1998-11-12
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type MAX II BEAMLINE I711
    Wavelength 1.015
    Site MAX II
    Beamline I711
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 1.75
    Resolution(Low) 25
    Number Reflections(Observed) 35580
    Percent Possible(Observed) 99.6
    R Merge I(Observed) 0.073
    B(Isotropic) From Wilson Plot 9.4
    Redundancy 3.5
     
    High Resolution Shell Details
    Resolution(High) 1.75
    Resolution(Low) 1.8
    Percent Possible(All) 98.6
    R Merge I(Observed) 0.291
    Mean I Over Sigma(Observed) 2.6
    Redundancy 3.4
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.75
    Resolution(Low) 24.26
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 35336
    Number of Reflections(R-Free) 1750
    Percent Reflections(Observed) 99.3
    R-Factor(Observed) 0.181
    R-Work 0.181
    R-Free 0.193
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 10.6
    Anisotropic B[1][1] -0.33
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.54
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.21
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.75
    Shell Resolution(Low) 1.86
    Number of Reflections(R-Free) 265
    Number of Reflections(R-Work) 5497
    R-Factor(R-Work) 0.213
    R-Factor(R-Free) 0.257
    R-Free Error 0.016
    Percent Reflections(Observed) 98.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.87
    c_bond_d 0.01
    c_angle_deg 1.5
    c_dihedral_angle_d 26.2
     
    Coordinate Error
    Luzzati ESD(Observed) 0.18
    Luzzati Sigma A(Observed) 0.11
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.2
    Luzzati Sigma A(R-Free Set) 0.15
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2415
    Nucleic Acid Atoms 0
    Heterogen Atoms 10
    Solvent Atoms 345
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution AMORE
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building AMORE