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X-RAY DIFFRACTION
Materials and Methods page
2F5C
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 8.5
    Temperature 293.0
    Details 25% PEG 400, 0.12 M LITHIUM SULFATE, PH 8.50, 23 BP DUPLEX DNA PRESENT, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 41.32 α = 90
    b = 41.32 β = 90
    c = 301.43 γ = 120
     
    Space Group
    Space Group Name:    P 65 2 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type NOIR-1
    Collection Date 2005-04-09
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ALS BEAMLINE 4.2.2
    Wavelength 1.1271
    Site ALS
    Beamline 4.2.2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.4
    Resolution(Low) 40
    Number Reflections(Observed) 5959
    Percent Possible(Observed) 92.6
    R Merge I(Observed) 0.048
    B(Isotropic) From Wilson Plot 29.1
     
    High Resolution Shell Details
    Resolution(High) 2.4
    Resolution(Low) 2.49
    Percent Possible(All) 48.9
    R Merge I(Observed) 0.323
    Mean I Over Sigma(Observed) 19.8
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.4
    Resolution(Low) 19.93
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 5943
    Number of Reflections(R-Free) 648
    Percent Reflections(Observed) 88.0
    R-Factor(Observed) 0.248
    R-Work 0.248
    R-Free 0.303
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 44.8
    Anisotropic B[1][1] 4.07
    Anisotropic B[1][2] 6.46
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 4.07
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -8.14
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.4
    Shell Resolution(Low) 2.55
    Number of Reflections(R-Free) 67
    Number of Reflections(R-Work) 486
    R-Factor(R-Work) 0.28
    R-Factor(R-Free) 0.377
    R-Free Error 0.046
    Percent Reflections(Observed) 52.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.73
    c_bond_d 0.009
    c_angle_deg 1.3
    c_dihedral_angle_d 18.8
     
    Coordinate Error
    Luzzati ESD(Observed) 0.34
    Luzzati Sigma A(Observed) 0.26
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.45
    Luzzati Sigma A(R-Free Set) 0.32
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1164
    Nucleic Acid Atoms 0
    Heterogen Atoms 12
    Solvent Atoms 8
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) D*TREK
    Data Reduction (data scaling) D*TREK
    Structure Solution CNS
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building CNS
    data reduction D*TREK
    data collection D*TREK