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X-RAY DIFFRACTION
Materials and Methods page
1M6T
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 9
    Temperature 298.0
    Details 3.2 M NH4(SO4), 2.44 mM N-octanoylsucrose, 0.1 M Bicine, pH 9.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 41.3 α = 90
    b = 52.34 β = 90
    c = 93.8 γ = 90
     
    Space Group
    Space Group Name:    C 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Collection Date 2000-02-02
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X9B
    Wavelength List 1.0090
    Site NSLS
    Beamline X9B
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.81
    Resolution(Low) 18.9
    Number Reflections(All) 9252
    Number Reflections(Observed) 9252
    Percent Possible(Observed) 95.9
    R Merge I(Observed) 0.3
    B(Isotropic) From Wilson Plot 32.0
    Redundancy 5.0
     
    High Resolution Shell Details
    Resolution(High) 1.81
    Resolution(Low) 1.86
    Percent Possible(All) 76.8
    R Merge I(Observed) 0.533
    Mean I Over Sigma(Observed) 2.9
    R-Sym I(Observed) 0.533
    Number Unique Reflections(All) 749
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.81
    Resolution(Low) 18.9
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 9252
    Number of Reflections(Observed) 9252
    Number of Reflections(R-Free) 485
    Percent Reflections(Observed) 95.9
    R-Work 0.21
    R-Free 0.248
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 38.8
    Anisotropic B[1][1] 0.92
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -2.31
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 1.39
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.81
    Shell Resolution(Low) 1.91
    Number of Reflections(Observed) 1188
    Number of Reflections(R-Free) 69
    Number of Reflections(R-Work) 1188
    R-Factor(R-Work) 0.323
    R-Factor(R-Free) 0.344
    R-Free Error 0.041
    Percent Reflections(Observed) 79.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 4.35
    c_scbond_it 2.77
    c_mcangle_it 2.26
    c_mcbond_it 1.43
    c_improper_angle_d 0.83
    c_dihedral_angle_d 17.1
    c_angle_deg 1.0
    c_bond_d 0.005
     
    Coordinate Error
    Luzzati ESD(Observed) 0.23
    Luzzati Sigma A(Observed) 0.22
    Luzzati Resolution Cutoff(Low) 19.0
    Luzzati ESD(R-Free Set) 0.28
    Luzzati Sigma A(R-Free Set) 0.25
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 827
    Nucleic Acid Atoms 0
    Heterogen Atoms 5
    Solvent Atoms 118
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building CNS
    data reduction SCALEPACK
    data collection HKL-2000