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X-RAY DIFFRACTION
Materials and Methods page
1P4Y
  •   Crystallization Hide
    Crystallization Experiments
    pH 7
    Temperature 298.0
    Details 0.5mM DNA, 25mM sodium cacodylate, 7.5mM CaCl2, 0.1mM SPERMINE TETRAHYDROCHLORIDE, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K, pH 7.00
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 66.51 α = 90
    b = 24.18 β = 110.01
    c = 37 γ = 90
     
    Space Group
    Space Group Name:    C 1 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 103
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS IV
    Collection Date 2003-01-24
     
    Diffraction Radiation
    Monochromator NI FILTER
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RU300
    Wavelength 1.542
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.65
    Resolution(Low) 22.55
    Number Reflections(Observed) 4940
    Percent Possible(Observed) 74.0
    R Merge I(Observed) 0.048
    B(Isotropic) From Wilson Plot 1.6
     
    High Resolution Shell Details
    Resolution(High) 1.65
    Resolution(Low) 1.71
    Percent Possible(All) 21.7
    R Merge I(Observed) 0.279
    Mean I Over Sigma(Observed) 2.14
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.7
    Resolution(Low) 22.5
    Cut-off Sigma(F) 2.0
    Number of Reflections(all) 4940
    Number of Reflections(Observed) 4436
    Number of Reflections(R-Free) 490
    Percent Reflections(Observed) 77.1
    R-Factor(Observed) 0.229
    R-Work 0.229
    R-Free 0.26
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 8.7
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.7
    Shell Resolution(Low) 1.81
    Number of Reflections(R-Free) 39
    Number of Reflections(R-Work) 374
    R-Factor(R-Work) 0.209
    R-Factor(R-Free) 0.285
    R-Free Error 0.046
    Percent Reflections(Observed) 40.8
     
    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 18.5
     
    Coordinate Error
    Luzzati ESD(Observed) 0.21
    Luzzati Sigma A(Observed) 0.03
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.26
    Luzzati Sigma A(R-Free Set) 0.1
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 0
    Nucleic Acid Atoms 404
    Heterogen Atoms 4
    Solvent Atoms 108
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution EPMR
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building EPMR
    data reduction SCALEPACK
    data collection DENZO