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X-RAY DIFFRACTION
Materials and Methods page
2PWF
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7
    Temperature 290.0
    Details 13%PEG20000, 0.1M Hepes, 0.01M L-cysteine, pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 290K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 63.98 α = 81.77
    b = 85.81 β = 81.43
    c = 122.14 γ = 89.94
     
    Space Group
    Space Group Name:    P 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Details mirrors
    Collection Date 2004-07-03
     
    Diffraction Radiation
    Monochromator mirrors
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-2
    Wavelength List 0.9330
    Site ESRF
    Beamline ID14-2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 1.8
    Resolution(Low) 45.8
    Number Reflections(All) 225077
    Number Reflections(Observed) 225077
    B(Isotropic) From Wilson Plot 14.1
    Redundancy 1.9
     
    High Resolution Shell Details
    Resolution(High) 1.8
    Resolution(Low) 1.9
    Mean I Over Sigma(Observed) 3.08
    R-Sym I(Observed) 0.279
    Redundancy 1.9
    Number Unique Reflections(All) 33321
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method FOURIER SYNTHESIS
    reflnsShellList 1.8
    Resolution(Low) 45.85
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 225077
    Number of Reflections(Observed) 225058
    Number of Reflections(R-Free) 11212
    Percent Reflections(Observed) 95.3
    R-Factor(Observed) 0.198
    R-Work 0.198
    R-Free 0.238
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 18.4
    Anisotropic B[1][1] -0.44
    Anisotropic B[1][2] 0.18
    Anisotropic B[1][3] 2.0
    Anisotropic B[2][2] -2.95
    Anisotropic B[2][3] -0.5
    Anisotropic B[3][3] 3.38
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.8
    Shell Resolution(Low) 1.91
    Number of Reflections(R-Free) 1860
    Number of Reflections(R-Work) 35265
    R-Factor(R-Work) 0.267
    R-Factor(R-Free) 0.31
    R-Free Error 0.007
    Percent Reflections(Observed) 94.4
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 2.96
    c_scbond_it 2.14
    c_mcangle_it 1.93
    c_mcbond_it 1.38
    c_improper_angle_d 1.14
    c_dihedral_angle_d 24.2
    c_angle_deg 1.6
    c_bond_d 0.015
     
    Coordinate Error
    Luzzati ESD(Observed) 0.2
    Luzzati Sigma A(Observed) 0.2
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.25
    Luzzati Sigma A(R-Free Set) 0.24
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 17902
    Nucleic Acid Atoms 0
    Heterogen Atoms 52
    Solvent Atoms 3191
     
     
  •   Software and Computing Hide
    Computing
    Data Collection MX-cube
    Data Reduction (intensity integration) XDS
    Data Reduction (data scaling) XSCALE
    Structure Solution CNS
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1