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X-RAY DIFFRACTION
Materials and Methods page
4II1
  •   Crystallization Hide
    Crystallization Experiments
    Method vapor diffusion, sitting drop
    pH 7.5
    Temperature 291.0
    Details 1.2 M sodium citrate, 5% MPD, 0.1 M sodium HEPES, 3 molar equivalents of H3K4me3 peptide., pH 7.5, vapor diffusion, sitting drop, temperature 291K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 55.17 α = 90
    b = 87.07 β = 95.65
    c = 76.57 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 MAR scanner 300 mm plate
    Collection Date 2011-04-08
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type APS BEAMLINE 23-ID-B
    Wavelength List 1.28292
    Site APS
    Beamline 23-ID-B
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 2.65
    Resolution(Low) 37.8
    Number Reflections(Observed) 20804
    Percent Possible(Observed) 98.7
    R Merge I(Observed) 0.073
    B(Isotropic) From Wilson Plot 67.802
     
    High Resolution Shell Details
    Resolution(High) 2.65
    Resolution(Low) 2.72
    Percent Possible(All) 98.3
    R Merge I(Observed) 0.946
    Mean I Over Sigma(Observed) 1.94
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method SAD
    reflnsShellList 2.65
    Resolution(Low) 37.8
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 20787
    Number of Reflections(R-Free) 985
    Percent Reflections(Observed) 98.76
    R-Factor(Observed) 0.2102
    R-Work 0.2085
    R-Free 0.2416
    R-Free Selection Details THIN SHELLS (SFTOOLS)
     
    Temperature Factor Modeling
    Mean Isotropic B Value 66.9971
    Anisotropic B[1][1] 9.6709
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 4.6329
    Anisotropic B[2][2] -12.7657
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 3.0948
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.65
    Shell Resolution(Low) 2.79
    Number of Reflections(R-Free) 147
    Number of Reflections(R-Work) 2850
    R-Factor(R-Work) 0.2299
    R-Factor(R-Free) 0.2388
    Percent Reflections(Observed) 98.76
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    t_other_torsion 18.52
    t_omega_torsion 2.65
    t_angle_deg 1.01
    t_bond_d 0.009
     
    Coordinate Error
    Luzzati ESD(Observed) 0.347
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3947
    Nucleic Acid Atoms 0
    Heterogen Atoms 23
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) xds
    Data Reduction (data scaling) xscale
    Structure Solution shelx
    Structure Refinement BUSTER 2.10.0
     
    Software
    data extraction pdb_extract version: 3.11
    refinement BUSTER-TNT version: BUSTER 2.10.0
    density modification SHARP
    phasing SHELX
    data reduction Xscale