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X-RAY DIFFRACTION
Materials and Methods page
1N18
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.5
    Temperature 293.0
    Details Ammonium Sulfate, NaCl, Tris, EDTA, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 203.2 α = 90
    b = 165.2 β = 90
    c = 144.3 γ = 90
     
    Space Group
    Space Group Name:    C 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 90
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Details monochromator
    Collection Date 1996-02-25
     
    Diffraction Radiation
    Monochromator Si (111)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SSRL BEAMLINE BL7-1
    Wavelength List 1.08
    Site SSRL
    Beamline BL7-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 2
    Resolution(Low) 20
    Number Reflections(Observed) 162732
    Percent Possible(Observed) 99.2
    B(Isotropic) From Wilson Plot 19.7
    Redundancy 6.2
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.07
    Percent Possible(All) 99.7
    R-Sym I(Observed) 0.416
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 19.86
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 161466
    Number of Reflections(R-Free) 8091
    Percent Reflections(Observed) 99.2
    R-Factor(Observed) 0.218
    R-Work 0.218
    R-Free 0.25
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 35.4
    Anisotropic B[1][1] 0.47
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 5.25
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -5.73
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.13
    Number of Reflections(R-Free) 1301
    Number of Reflections(R-Work) 25418
    R-Factor(R-Work) 0.275
    R-Factor(R-Free) 0.305
    R-Free Error 0.008
    Percent Reflections(Observed) 99.3
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.14
    c_scbond_it 2.08
    c_mcangle_it 2.16
    c_mcbond_it 1.39
    c_improper_angle_d 0.68
    c_bond_d 0.005
    c_angle_deg 1.3
    c_dihedral_angle_d 24.9
     
    Coordinate Error
    Luzzati ESD(Observed) 0.26
    Luzzati Sigma A(Observed) 0.23
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.29
    Luzzati Sigma A(R-Free Set) 0.25
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 11090
    Nucleic Acid Atoms 0
    Heterogen Atoms 25
    Solvent Atoms 1389
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    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 DENZO