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An Information Portal to 105097 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1LQB
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 7.4
    Temperature 298.0
    Details HEPES, PEG2000 monomethylester, ammonium sulfate, pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 298K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 58.94 α = 90
    b = 58.94 β = 90
    c = 243.38 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 ADSC QUANTUM 4
    Collection Date 2001-11-30
     
    Diffraction Radiation
    Monochromator Diamond [111] and Ge crystals
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-2
    Wavelength List 0.98
    Site ESRF
    Beamline ID14-2
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2
    Resolution(Low) 30
    Number Reflections(Observed) 24245
    Percent Possible(Observed) 76.0
    B(Isotropic) From Wilson Plot 17.0
    Redundancy 18.5
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.07
    Percent Possible(All) 30.0
    Mean I Over Sigma(Observed) 1.0
    R-Sym I(Observed) 0.49
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 29.26
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 23019
    Number of Reflections(R-Free) 1108
    Percent Reflections(Observed) 76.2
    R-Factor(Observed) 0.225
    R-Work 0.225
    R-Free 0.277
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model Isotropic
    Mean Isotropic B Value 36.0
    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) 2.0
    Shell Resolution(Low) 2.13
    Number of Reflections(Observed) 1546
    Number of Reflections(R-Free) 102
    Number of Reflections(R-Work) 1978
    R-Factor(R-Work) 0.289
    R-Factor(R-Free) 0.352
    R-Free Error 0.035
    Percent Reflections(Observed) 42.3
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.91
    c_bond_d 0.006
    c_angle_deg 1.3
    c_dihedral_angle_d 23.8
     
    Coordinate Error
    Luzzati ESD(R-Free Set) 0.35
    Luzzati Sigma A(R-Free Set) 0.29
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2905
    Nucleic Acid Atoms 0
    Heterogen Atoms 5
    Solvent Atoms 84
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution EPMR
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building EPMR