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X-RAY DIFFRACTION
Materials and Methods page
2XQD
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.3
    Details 100 MM MES PH 6.3, 60-100 MM KCL, 50 MM SUCROSE, 1% GLYCEROL, AND 5.3% (W/V) PEG20K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 197.6 α = 90
    b = 274.93 β = 91.81
    c = 282.46 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC
    Collection Date 2010-06-13
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-4
    Wavelength 0.98000
    Site ESRF
    Beamline ID14-4
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.16
    Resolution(High) 3.1
    Resolution(Low) 50
    Number Reflections(Observed) 537024
    Percent Possible(Observed) 98.8
    R Merge I(Observed) 0.02
    B(Isotropic) From Wilson Plot 56.3
    Redundancy 5.2
     
    High Resolution Shell Details
    Resolution(High) 3.1
    Resolution(Low) 3.2
    Percent Possible(All) 89.6
    R Merge I(Observed) 1.26
    Mean I Over Sigma(Observed) 1.16
    Redundancy 4.3
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 3.1
    Resolution(Low) 50.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 537024
    Number of Reflections(R-Free) 26914
    Percent Reflections(Observed) 98.8
    R-Factor(Observed) 0.2312
    R-Work 0.2312
    R-Free 0.2681
    R-Free Selection Details INHERITED FROM 2WRN
     
    Temperature Factor Modeling
    Mean Isotropic B Value 85.3
    Anisotropic B[1][1] 8.94
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] -0.51
    Anisotropic B[2][2] -4.04
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -4.91
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.1
    Shell Resolution(Low) 3.29
    Number of Reflections(R-Free) 4236
    Number of Reflections(R-Work) 80731
    R-Factor(R-Work) 0.316
    R-Factor(R-Free) 0.339
    R-Free Error 0.005
    Percent Reflections(Observed) 94.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.57
    c_bond_d 0.007
    c_angle_deg 1.2
    c_dihedral_angle_d 29.1
     
    Coordinate Error
    Luzzati ESD(Observed) 0.39
    Luzzati Sigma A(Observed) 0.57
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.46
    Luzzati Sigma A(R-Free Set) 0.6
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 22289
    Nucleic Acid Atoms 37509
    Heterogen Atoms 79
    Solvent Atoms 1
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) XDS
    Data Reduction (data scaling) XDS
    Structure Solution CNS
    Structure Refinement CNS 1.2
     
    Software
    refinement CNS version: 1.2
    model building CNS