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X-RAY DIFFRACTION
Materials and Methods page
1KUQ
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.2
    Temperature 295.0
    Details ammonium sulphate, KCl, MgCl2, sodium cacodylate, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 295K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 128.23 α = 90
    b = 128.23 β = 90
    c = 64.95 γ = 120
     
    Space Group
    Space Group Name:    P 64 2 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type MARRESEARCH
    Collection Date 1999-09-21
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-2
    Wavelength List 0.933
    Site ESRF
    Beamline ID14-2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.84
    Resolution(Low) 25
    Number Reflections(All) 7828
    Number Reflections(Observed) 7828
    Percent Possible(Observed) 99.8
    R Merge I(Observed) 0.049
    B(Isotropic) From Wilson Plot 117.9
    Redundancy 5.6
     
    High Resolution Shell Details
    Resolution(High) 2.84
    Resolution(Low) 2.92
    Percent Possible(All) 99.9
    R Merge I(Observed) 0.12
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.84
    Resolution(Low) 24.41
    Cut-off Sigma(F) 2.0
    Number of Reflections(all) 7780
    Number of Reflections(Observed) 7724
    Number of Reflections(R-Free) 412
    Percent Reflections(Observed) 98.8
    R-Factor(Observed) 0.231
    R-Work 0.231
    R-Free 0.322
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 56.9
    Anisotropic B[1][1] -4.18
    Anisotropic B[1][2] 4.29
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -4.18
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 8.37
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.84
    Shell Resolution(Low) 3.02
    Number of Reflections(R-Free) 51
    Number of Reflections(R-Work) 1161
    R-Factor(R-Work) 0.376
    R-Factor(R-Free) 0.43
    R-Free Error 0.06
    Percent Reflections(Observed) 96.8
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 10.73
    c_scbond_it 8.01
    c_mcangle_it 14.4
    c_mcbond_it 9.33
    c_improper_angle_d 1.4
    c_bond_d 0.006
    c_angle_deg 1.2
    c_dihedral_angle_d 18.9
     
    Coordinate Error
    Luzzati ESD(Observed) 0.4
    Luzzati Sigma A(Observed) 0.45
    Luzzati Resolution Cutoff(Low) 50.0
    Luzzati ESD(R-Free Set) 0.61
    Luzzati Sigma A(R-Free Set) 0.41
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 703
    Nucleic Acid Atoms 1225
    Heterogen Atoms 5
    Solvent Atoms 6
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution CNS
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building CNS
    data reduction SCALA
    data collection DENZO