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X-RAY DIFFRACTION
Materials and Methods page
1PNS
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION
    pH 6.5
    Temperature 277.0
    Details MPD, ethanol, magnesium chloride, ammonium chloride, spermine, spermidine, MES, pH 6.5, VAPOR DIFFUSION, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 682.32 α = 90
    b = 682.32 β = 90
    c = 386.36 γ = 90
     
    Space Group
    Space Group Name:    I 4 2 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 110
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315
    Collection Date 2002-08-31
     
    Diffraction Radiation
    Monochromator Si 111
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ALS BEAMLINE 8.3.1
    Wavelength List 1.1
    Site ALS
    Beamline 8.3.1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 8.7
    Resolution(Low) 175
    Number Reflections(All) 37559
    Number Reflections(Observed) 36338
    Percent Possible(Observed) 98.5
    Redundancy 5.2
     
    High Resolution Shell Details
    Resolution(High) 8.7
    Resolution(Low) 8.9
    Percent Possible(All) 99.2
    Mean I Over Sigma(Observed) 2.5
    R-Sym I(Observed) 0.635
    Redundancy 5.2
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 8.7
    Resolution(Low) 70.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 37559
    Number of Reflections(Observed) 36338
    Number of Reflections(R-Free) 1781
    Percent Reflections(Observed) 98.5
    R-Work 0.394
    R-Free 0.415
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model ANISOTROPIC
    Mean Isotropic B Value 648.8
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 19012
    Nucleic Acid Atoms 36245
    Heterogen Atoms 0
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building CNS
    data reduction SCALEPACK
    data collection DENZO