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X-RAY DIFFRACTION
Materials and Methods page
1P2K
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.5
    Temperature 310.0
    Details 50% ammonium sulfate, 0.1M Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 310K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 74.63 α = 90
    b = 82.49 β = 90
    c = 123.3 γ = 90
     
    Space Group
    Space Group Name:    I 2 2 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Details Mirrors
    Collection Date 1998-04-04
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE BM1A
    Wavelength List 0.8
    Site ESRF
    Beamline BM1A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 2.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.6
    Resolution(Low) 7.99
    Number Reflections(All) 49661
    Number Reflections(Observed) 49661
    Percent Possible(Observed) 99.2
    R Merge I(Observed) 0.061
    B(Isotropic) From Wilson Plot 19.59
    Redundancy 3.1
     
    High Resolution Shell Details
    Resolution(High) 1.6
    Resolution(Low) 1.69
    Percent Possible(All) 99.9
    R Merge I(Observed) 0.377
    Mean I Over Sigma(Observed) 2.0
    R-Sym I(Observed) 0.377
    Redundancy 3.1
    Number Unique Reflections(All) 49951
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.6
    Resolution(Low) 7.99
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 49661
    Number of Reflections(Observed) 49661
    Number of Reflections(R-Free) 2973
    Percent Reflections(Observed) 99.2
    R-Factor(All) 0.2
    R-Factor(Observed) 0.2
    R-Work 0.2
    R-Free 0.212
    R-Free Selection Details Random
     
    Temperature Factor Modeling
    Isotropic Thermal Model Isotropic
    Mean Isotropic B Value 22.39
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.72
    c_dihedral_angle_d 25.15
    c_bond_d 0.005
    c_angle_deg 1.32
     
    Coordinate Error
    Luzzati ESD(Observed) 0.19
    Luzzati Sigma A(Observed) 0.2
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2081
    Nucleic Acid Atoms 0
    Heterogen Atoms 11
    Solvent Atoms 247
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution CNS
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building CNS
    data reduction SCALA
    data collection DENZO