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X-RAY DIFFRACTION
Materials and Methods page
1BJQ
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.5
    Details 100 MM NA-CACODYLATE PH 6.5 10 % (W/V) PEG 8000 20 MM MGAC2 1 MM ADENINE
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 81.38 α = 90
    b = 116.14 β = 90
    c = 224.62 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Collection Date 1998-03
     
    Diffraction Radiation
     
    Diffraction Source
    Source SYNCHROTRON
    Type SRS BEAMLINE PX7.2
    Wavelength 1.488
    Site SRS
    Beamline PX7.2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.65
    Resolution(Low) 20
    Number Reflections(Observed) 57851
    Percent Possible(Observed) 92.4
    R Merge I(Observed) 0.116
    B(Isotropic) From Wilson Plot 22.6
    Redundancy 2.8
     
    High Resolution Shell Details
    Resolution(High) 2.65
    Resolution(Low) 2.74
    Percent Possible(All) 69.1
    R Merge I(Observed) 0.315
    Mean I Over Sigma(Observed) 6.5
    Redundancy 1.3
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.65
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 57851
    Number of Reflections(R-Free) 5889
    Percent Reflections(Observed) 92.5
    R-Factor(Observed) 0.219
    R-Work 0.219
    R-Free 0.246
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 26.0
    Anisotropic B[1][1] 0.0
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.0
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 0.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.65
    Shell Resolution(Low) 2.74
    Number of Reflections(R-Free) 432
    Number of Reflections(R-Work) 3888
    R-Factor(R-Work) 0.326
    R-Factor(R-Free) 0.359
    R-Free Error 0.017
    Percent Reflections(Observed) 70.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 2.13
    x_scbond_it 1.45
    x_mcangle_it 2.49
    x_mcbond_it 1.45
    x_improper_angle_d 0.67
    x_bond_d 0.008
    x_angle_deg 1.5
    x_dihedral_angle_d 28.9
     
    Coordinate Error
    Luzzati ESD(Observed) 0.33
    Luzzati Sigma A(Observed) 0.43
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.37
    Luzzati Sigma A(R-Free Set) 0.5
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 14602
    Nucleic Acid Atoms 0
    Heterogen Atoms 96
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution X-PLOR 3.851
    Structure Refinement X-PLOR 3.851
     
    Software
    refinement X-PLOR version: 3.851
    model building X-PLOR version: 3.851