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X-RAY DIFFRACTION
Materials and Methods page
1KX4
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 6
    Temperature 293.0
    Details manganese chloride, potassium chloride, potassium cacodylate, pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 105.3 α = 90
    b = 175.69 β = 90
    c = 109.53 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 103
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Collection Date 1996-06-02
     
    Diffraction Radiation
    Monochromator Si 111 CHANNEL
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID09
    Wavelength List 0.85
    Site ESRF
    Beamline ID09
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 1.0
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 2.6
    Resolution(Low) 30
    Number Reflections(All) 67577
    Number Reflections(Observed) 60481
    Percent Possible(Observed) 89.5
    R Merge I(Observed) 0.072
    B(Isotropic) From Wilson Plot 54.8
    Redundancy 3.7
     
    High Resolution Shell Details
    Resolution(High) 2.6
    Resolution(Low) 2.69
    Percent Possible(All) 45.7
    R Merge I(Observed) 0.157
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.6
    Resolution(Low) 6.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 52906
    Number of Reflections(Observed) 52906
    Number of Reflections(R-Free) 1043
    Percent Reflections(Observed) 91.6
    R-Factor(All) 0.247
    R-Factor(Observed) 0.247
    R-Work 0.246
    R-Free 0.3
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 51.6
    Anisotropic B[1][1] 5.75
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 6.4
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -12.15
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.6
    Shell Resolution(Low) 2.75
    Number of Reflections(R-Free) 134
    Number of Reflections(R-Work) 7486
    R-Factor(R-Work) 0.326
    R-Factor(R-Free) 0.374
    R-Free Error 0.032
    Percent Reflections(Observed) 79.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.03
    c_scbond_it 2.07
    c_mcangle_it 2.58
    c_mcbond_it 1.59
    c_improper_angle_d 1.0
    c_dihedral_angle_d 18.5
    c_angle_deg 1.0
    c_bond_d 0.006
     
    Coordinate Error
    Luzzati ESD(Observed) 0.35
    Luzzati Sigma A(Observed) 0.12
    Luzzati Resolution Cutoff(Low) 6.0
    Luzzati ESD(R-Free Set) 0.44
    Luzzati Sigma A(R-Free Set) 0.2
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 6015
    Nucleic Acid Atoms 5980
    Heterogen Atoms 10
    Solvent Atoms 433
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement CNS 0.5
     
    Software
    refinement CNS version: 0.5
    model building CNS
    data reduction SCALEPACK
    data collection DENZO