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X-RAY DIFFRACTION
Materials and Methods page
1KX3
  •   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 = 105.4 α = 90
    b = 181.54 β = 90
    c = 109.6 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) 1.97
    Resolution(Low) 99
    Number Reflections(All) 147830
    Number Reflections(Observed) 145317
    Percent Possible(Observed) 98.3
    R Merge I(Observed) 0.068
    B(Isotropic) From Wilson Plot 35.7
    Redundancy 7.4
     
    High Resolution Shell Details
    Resolution(High) 1.97
    Resolution(Low) 2.04
    Percent Possible(All) 84.5
    R Merge I(Observed) 0.495
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method FOURIER SYNTHESIS
    reflnsShellList 2.0
    Resolution(Low) 6.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 136427
    Number of Reflections(Observed) 136427
    Number of Reflections(R-Free) 2716
    Percent Reflections(Observed) 99.9
    R-Factor(All) 0.241
    R-Factor(Observed) 0.241
    R-Work 0.24
    R-Free 0.275
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 58.2
    Anisotropic B[1][1] 2.12
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 5.33
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -7.45
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.12
    Number of Reflections(R-Free) 446
    Number of Reflections(R-Work) 22125
    R-Factor(R-Work) 0.309
    R-Factor(R-Free) 0.328
    R-Free Error 0.016
    Percent Reflections(Observed) 99.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 4.0
    c_scbond_it 2.77
    c_mcangle_it 4.19
    c_mcbond_it 3.87
    c_improper_angle_d 1.1
    c_dihedral_angle_d 18.9
    c_angle_deg 1.2
    c_bond_d 0.01
     
    Coordinate Error
    Luzzati ESD(Observed) 0.28
    Luzzati Sigma A(Observed) 0.23
    Luzzati Resolution Cutoff(Low) 6.0
    Luzzati ESD(R-Free Set) 0.31
    Luzzati Sigma A(R-Free Set) 0.25
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 6087
    Nucleic Acid Atoms 5980
    Heterogen Atoms 13
    Solvent Atoms 943
     
     
  •   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