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X-RAY DIFFRACTION
Materials and Methods page
1Q3W
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7
    Temperature 298.0
    Details PEG 3350 MONODISPERSE, GLYCEROL, MAGNESIUM CHLORIDE, HEPES, pH 7.00, VAPOR DIFFUSION, HANGING DROP, temperature 298K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 82.67 α = 90
    b = 85.99 β = 90
    c = 178.19 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 CCD
    Type ADSC QUANTUM 4
    Collection Date 2002-07-06
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-1
    Wavelength 0.933
    Wavelength List 0.933
    Site ESRF
    Beamline ID14-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.3
    Resolution(Low) 30
    Number Reflections(Observed) 57037
    Percent Possible(Observed) 99.6
    B(Isotropic) From Wilson Plot 27.7
    Redundancy 3.414
     
    High Resolution Shell Details
    Resolution(High) 2.3
    Resolution(Low) 2.38
    Percent Possible(All) 99.9
    Mean I Over Sigma(Observed) 2.367
    R-Sym I(Observed) 0.512
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.3
    Resolution(Low) 20.01
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 56978
    Number of Reflections(R-Free) 2846
    Percent Reflections(Observed) 99.6
    R-Work 0.225
    R-Free 0.248
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 52.0
    Anisotropic B[1][1] 5.35
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 11.69
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -17.04
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.3
    Shell Resolution(Low) 2.44
    Number of Reflections(R-Free) 496
    Number of Reflections(R-Work) 8888
    R-Factor(R-Work) 0.305
    R-Factor(R-Free) 0.323
    R-Free Error 0.015
    Percent Reflections(Observed) 99.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.27
    c_scbond_it 2.16
    c_mcangle_it 2.67
    c_mcbond_it 1.55
    c_improper_angle_d 1.0
    c_dihedral_angle_d 22.8
    c_angle_deg 1.4
    c_bond_d 0.01
     
    Coordinate Error
    Luzzati ESD(Observed) 0.31
    Luzzati Sigma A(Observed) 0.34
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.35
    Luzzati Sigma A(R-Free Set) 0.37
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 5438
    Nucleic Acid Atoms 0
    Heterogen Atoms 44
    Solvent Atoms 126
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (data scaling) SCALEPACK
    Structure Refinement CNX 2000
     
    Software
    refinement CNX version: 2000
    data reduction SCALEPACK