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X-RAY DIFFRACTION
Materials and Methods page
2X9T
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.5
    Details SEE SELMER ET AL., SCIENCE 2006, pH 6.5
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 211.42 α = 90
    b = 452.5 β = 90
    c = 625.44 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type MARRESEARCH
    Details MIRROR
    Collection Date 2009-05-31
     
    Diffraction Radiation
    Monochromator DYNAMICALLY BENDABLE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SLS BEAMLINE X10SA
    Wavelength 0.99986
    Site SLS
    Beamline X10SA
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.75
    Resolution(High) 3.1
    Resolution(Low) 50
    Number Reflections(Observed) 1071522
    Percent Possible(Observed) 99.9
    R Merge I(Observed) 0.16
    B(Isotropic) From Wilson Plot 43.7
    Redundancy 8.85
     
    High Resolution Shell Details
    Resolution(High) 3.1
    Resolution(Low) 3.2
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.72
    Mean I Over Sigma(Observed) 1.94
    Redundancy 7.78
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 3.1
    Resolution(Low) 47.86
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 1071522
    Number of Reflections(R-Free) 47139
    Percent Reflections(Observed) 100.0
    R-Factor(Observed) 0.223
    R-Work 0.223
    R-Free 0.264
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 89.5
    Anisotropic B[1][1] -1.91
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 1.75
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 0.15
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.1
    Shell Resolution(Low) 3.29
    Number of Reflections(R-Free) 8780
    Number of Reflections(R-Work) 168763
    R-Factor(R-Work) 0.311
    R-Factor(R-Free) 0.338
    R-Free Error 0.004
    Percent Reflections(Observed) 100.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.49
    c_bond_d 0.006
    c_angle_deg 1.1
    c_dihedral_angle_d 28.8
     
    Coordinate Error
    Luzzati ESD(Observed) 0.39
    Luzzati Sigma A(Observed) 0.56
    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 21958
    Nucleic Acid Atoms 35754
    Heterogen Atoms 549
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) XDS
    Data Reduction (data scaling) XSCALE
    Structure Solution CNS
    Structure Refinement CNS 1.2
     
    Software
    refinement CNS version: 1.2
    model building CNS