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X-RAY DIFFRACTION
Materials and Methods page
3JSM
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.4
    Temperature 277.0
    Details 10% PEG 8000, 100 MM AMMONIUM SULFATE, 20 MM MGCL2, 5% GLYCEROL, 5% SUCROSE, pH 6.4, VAPOR DIFFUSION, HANGING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 170.31 α = 90
    b = 170.31 β = 90
    c = 155.44 γ = 120
     
    Space Group
    Space Group Name:    P 31 1 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 270
    Collection Date 2007-06-17
     
    Diffraction Radiation
    Monochromator Horizontal bent Si(111)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type CHESS BEAMLINE F1
    Wavelength List 0.9179
    Site CHESS
    Beamline F1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -1.0
    Resolution(High) 3
    Resolution(Low) 50
    Number Reflections(Observed) 49501
    Percent Possible(Observed) 95.8
    R Merge I(Observed) 0.156
    B(Isotropic) From Wilson Plot 53.0
     
    High Resolution Shell Details
    Resolution(High) 3.0
    Resolution(Low) 3.11
    Percent Possible(All) 82.3
    R Merge I(Observed) 0.563
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 3.0
    Resolution(Low) 49.17
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 51633
    Number of Reflections(Observed) 49494
    Number of Reflections(R-Free) 1530
    Percent Reflections(Observed) 95.8
    R-Factor(Observed) 0.252
    R-Work 0.252
    R-Free 0.285
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Anisotropic B[1][1] 7.21
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 7.21
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -14.41
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.0
    Shell Resolution(Low) 3.19
    Number of Reflections(R-Free) 247
    Number of Reflections(R-Work) 7115
    R-Factor(R-Work) 0.395
    R-Factor(R-Free) 0.364
    R-Free Error 0.023
    Percent Reflections(Observed) 86.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.19
    c_bond_d 0.009
    c_angle_deg 1.7
    c_dihedral_angle_d 22.5
     
    Coordinate Error
    Luzzati ESD(Observed) 0.47
    Luzzati Sigma A(Observed) 0.75
    Luzzati Resolution Cutoff(Low) 10.0
    Luzzati ESD(R-Free Set) 0.53
    Luzzati Sigma A(R-Free Set) 0.68
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7913
    Nucleic Acid Atoms 901
    Heterogen Atoms 39
    Solvent Atoms 1
     
     
  •   Software and Computing Hide
    Computing
    Data Collection ADSC Quantum
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement CNS 1.2
     
    Software
    refinement CNS version: 1.2
    model building CNS
    data collection ADSC version: Quantum