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X-RAY DIFFRACTION
Materials and Methods page
4AHD
  •   Crystallization Hide
    Crystallization Experiments
    Details 20 % PEG 4K, 0.05 M NA/K TARTRATE, 0.1 M NACL, 0.1 M HEPES PH 7.0
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 33.39 α = 90
    b = 37.97 β = 90.08
    c = 85.88 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 (QUANTUM 315)
    Type ADSC
    Collection Date 2009-03-07
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type DIAMOND BEAMLINE I02
    Wavelength 0.9795
    Site DIAMOND
    Beamline I02
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.4
    Resolution(Low) 50
    Number Reflections(Observed) 8834
    Percent Possible(Observed) 82.6
    R Merge I(Observed) 0.08
    B(Isotropic) From Wilson Plot 26.4
    Redundancy 3.4
     
    High Resolution Shell Details
    Resolution(High) 2.4
    Resolution(Low) 2.49
    Percent Possible(All) 64.7
    R Merge I(Observed) 0.17
    Mean I Over Sigma(Observed) 5.4
    Redundancy 2.5
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.47
    Resolution(Low) 33.39
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 6548
    Number of Reflections(R-Free) 353
    Percent Reflections(Observed) 82.3
    R-Factor(Observed) 0.237
    R-Work 0.237
    R-Free 0.249
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 35.3
    Anisotropic B[1][1] 12.76
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 1.02
    Anisotropic B[2][2] -5.02
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -7.73
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.47
    Shell Resolution(Low) 2.62
    Number of Reflections(R-Free) 51
    Number of Reflections(R-Work) 1000
    R-Factor(R-Work) 0.282
    R-Factor(R-Free) 0.306
    R-Free Error 0.043
    Percent Reflections(Observed) 79.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.32
    c_bond_d 0.008
    c_angle_deg 1.4
    c_dihedral_angle_d 26.0
     
    Coordinate Error
    Luzzati ESD(Observed) 0.3
    Luzzati Sigma A(Observed) 0.28
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.32
    Luzzati Sigma A(R-Free Set) 0.36
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1898
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 43
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL2000
    Data Reduction (data scaling) HKL2000
    Structure Solution PHASER
    Structure Refinement CNS 1.2
     
    Software
    refinement CNS version: 1.2
    model building PHASER