POP-OUT | CLOSE
 
X-RAY DIFFRACTION
Materials and Methods page
2B9M
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION
    pH 6.7
    Temperature 277.0
    Details PEG20k, MES buffer, magnesium acetate, potassium chloride, ammonium chloride, pH 6.7, VAPOR DIFFUSION, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 520.21 α = 90
    b = 520.21 β = 90
    c = 365.9 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 2005-04-30
     
    Diffraction Radiation
    Monochromator Khozu monochromator with a McLennon controller containing a LN2 cooled Si111 crystal
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-4
    Wavelength List 0.976269
    Site ESRF
    Beamline ID14-4
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 5.0
    Resolution(High) 6.76
    Resolution(Low) 100
    Number Reflections(Observed) 123564
    Percent Possible(Observed) 99.1
    Redundancy 5.7
     
    High Resolution Shell Details
    Resolution(High) 6.76
    Resolution(Low) 7.11
    Percent Possible(All) 99.6
    Mean I Over Sigma(Observed) 2.34
    R-Sym I(Observed) 0.75
    Redundancy 5.7
    Number Unique Reflections(All) 12215
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 6.76
    Resolution(Low) 43.35
    Cut-off Sigma(I) 3.145E7
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 84085
    Number of Reflections(R-Free) 4219
    Percent Reflections(Observed) 96.2
    R-Factor(All) 0.344
    R-Factor(Observed) 0.344
    R-Work 0.341
    R-Free 0.356
    R-Free Selection Details random
     
    Temperature Factor Modeling
    Isotropic Thermal Model anisotropic
    Mean Isotropic B Value 279.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 6.76
    Shell Resolution(Low) 6.81
    Number of Reflections(R-Free) 629
    R-Factor(R-Work) 0.367
    R-Factor(R-Free) 0.399
    R-Free Error 0.015
    Percent Reflections(Observed) 87.9
     
    Coordinate Error
    Luzzati ESD(Observed) 1.39
    Luzzati Sigma A(Observed) 0.92
    Luzzati Resolution Cutoff(Low) 15.0
    Luzzati ESD(R-Free Set) 1.5
    Luzzati Sigma A(R-Free Set) 1.29
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 19596
    Nucleic Acid Atoms 35947
    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