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X-RAY DIFFRACTION
Materials and Methods page
1LWE
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 5
    Temperature 277.0
    Details pH 5.00, VAPOR DIFFUSION, SITTING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 139.7 α = 90
    b = 111.3 β = 90
    c = 74.5 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MAR scanner 300 mm plate
    Collection Date 1999-02-19
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SRS BEAMLINE PX7.2
    Wavelength 1.488
    Wavelength List 1.488
    Site SRS
    Beamline PX7.2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -1.5
    Resolution(High) 2.8
    Resolution(Low) 30
    Number Reflections(Observed) 27248
    Percent Possible(Observed) 93.9
    R Merge I(Observed) 0.066
    B(Isotropic) From Wilson Plot 70.8
    Redundancy 3.9
     
    High Resolution Shell Details
    Resolution(High) 2.8
    Resolution(Low) 2.9
    Percent Possible(All) 77.0
    Mean I Over Sigma(Observed) 1.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.81
    Resolution(Low) 29.99
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 27228
    Number of Reflections(R-Free) 1329
    Percent Reflections(Observed) 93.8
    R-Work 0.213
    R-Free 0.302
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 70.2
    Anisotropic B[1][1] 0.51
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -10.58
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 10.08
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.8
    Shell Resolution(Low) 2.9
    Number of Reflections(R-Free) 83
    Number of Reflections(R-Work) 1865
    R-Factor(R-Work) 0.34
    R-Factor(R-Free) 0.386
    R-Free Error 0.042
    Percent Reflections(Observed) 67.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 12.57
    c_scbond_it 8.46
    c_mcangle_it 7.98
    c_mcbond_it 4.87
    c_improper_angle_d 1.03
    c_dihedral_angle_d 23.3
    c_angle_deg 1.6
    c_bond_d 0.011
     
    Coordinate Error
    Luzzati ESD(R-Free Set) 0.53
    Luzzati Sigma A(R-Free Set) 0.55
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7749
    Nucleic Acid Atoms 0
    Heterogen Atoms 25
    Solvent Atoms 19
     
     
  •   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