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X-RAY DIFFRACTION
Materials and Methods page
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  •   Crystallization Hide
    Crystallization Experiments
    pH 8
    Temperature 277.0
    Details CRYSTALLIZED FROM 15% PEG 8000, 20% GLYCEROL, 6% MPD, 0.1 M NAHCO3, 0.1 M TRIS PH 8.0 AT 4 C, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 55.53 α = 90
    b = 55.53 β = 90
    c = 103.61 γ = 90
     
    Space Group
    Space Group Name:    P 43 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type BRANDEIS
    Collection Date 1997-05-15
     
    Diffraction Radiation
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X12C
    Wavelength 0.98
    Wavelength List 0.98, 1.01
    Site NSLS
    Beamline X12C
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.9
    Resolution(Low) 100
    Number Reflections(Observed) 13428
    Percent Possible(Observed) 99.8
    R Merge I(Observed) 0.033
    B(Isotropic) From Wilson Plot 25.9
    Redundancy 7.7
     
    High Resolution Shell Details
    Resolution(High) 1.9
    Resolution(Low) 1.98
    Percent Possible(All) 95.0
    R Merge I(Observed) 0.064
    Mean I Over Sigma(Observed) 5.0
    R-Sym I(Observed) 0.307
    Redundancy 5.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MAD
    reflnsShellList 1.9
    Resolution(Low) 6.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 12890
    Number of Reflections(R-Free) 1279
    Percent Reflections(Observed) 99.9
    R-Factor(Observed) 0.229
    R-Work 0.229
    R-Free 0.284
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 35.9
    Anisotropic B[1][1] 0.05
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.05
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.1
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.9
    Shell Resolution(Low) 2.01
    Number of Reflections(R-Free) 220
    Number of Reflections(R-Work) 1868
    R-Factor(R-Work) 0.362
    R-Factor(R-Free) 0.333
    R-Free Error 0.022
    Percent Reflections(Observed) 99.6
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 4.14
    x_scbond_it 2.54
    x_mcangle_it 2.2
    x_mcbond_it 1.32
    x_improper_angle_d 1.18
    x_bond_d 0.007
    x_angle_deg 1.2
    x_dihedral_angle_d 21.2
     
    Coordinate Error
    Luzzati ESD(Observed) 0.25
    Luzzati Sigma A(Observed) 0.26
    Luzzati Resolution Cutoff(Low) 6.0
    Luzzati ESD(R-Free Set) 0.3
    Luzzati Sigma A(R-Free Set) 0.2
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1126
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 146
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution SHARP, X-PLOR 3.843
    Structure Refinement X-PLOR 3.843
     
    Software
    refinement X-PLOR version: 3.843
    model building X-PLOR version: 3.843
    model building SHARP