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X-RAY DIFFRACTION
Materials and Methods page
1KQL
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 8.3
    Temperature 295.0
    Details PEG 550 monomethylether, glycerol, sodium chloride, magnesium acetate, bicine, tris buffer, dithiothreitol, pH 8.3, VAPOR DIFFUSION, SITTING DROP, temperature 295K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 137.2 α = 90
    b = 137.2 β = 90
    c = 40.07 γ = 120
     
    Space Group
    Space Group Name:    P 64 2 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 95
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Details mirrors
    Collection Date 2001-04-20
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type CHESS BEAMLINE A1
    Wavelength List 0.909
    Site CHESS
    Beamline A1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 2.0
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2.6
    Resolution(Low) 50
    Number Reflections(All) 7229
    Number Reflections(Observed) 7221
    Percent Possible(Observed) 99.9
    R Merge I(Observed) 0.052
    B(Isotropic) From Wilson Plot 82.3
    Redundancy 12.0
     
    High Resolution Shell Details
    Resolution(High) 2.6
    Resolution(Low) 2.69
    Percent Possible(All) 99.9
    R Merge I(Observed) 0.217
    Mean I Over Sigma(Observed) 9.14
    Redundancy 8.2
    Number Unique Reflections(All) 708
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method Molecular replacement using a specially built model
    reflnsShellList 2.7
    Resolution(Low) 44.91
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 6469
    Number of Reflections(Observed) 6469
    Number of Reflections(R-Free) 508
    Percent Reflections(Observed) 99.6
    R-Factor(All) 0.2551
    R-Factor(Observed) 0.2551
    R-Work 0.2523
    R-Free 0.2889
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 93.4
    Anisotropic B[1][1] 2.22
    Anisotropic B[1][2] 15.96
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 2.22
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -4.43
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.7
    Shell Resolution(Low) 2.8
    Number of Reflections(Observed) 617
    Number of Reflections(R-Free) 49
    Number of Reflections(R-Work) 568
    R-Factor(R-Work) 0.3295
    R-Factor(R-Free) 0.3353
    R-Free Error 0.04
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.8
    Shell Resolution(Low) 2.91
    Number of Reflections(Observed) 621
    Number of Reflections(R-Free) 45
    R-Factor(R-Work) 0.3134
    R-Factor(R-Free) 0.3547
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.91
    Shell Resolution(Low) 3.04
    Number of Reflections(Observed) 636
    Number of Reflections(R-Free) 53
    R-Factor(R-Work) 0.2986
    R-Factor(R-Free) 0.3658
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.04
    Shell Resolution(Low) 3.2
    Number of Reflections(Observed) 628
    Number of Reflections(R-Free) 49
    R-Factor(R-Work) 0.2696
    R-Factor(R-Free) 0.3673
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.2
    Shell Resolution(Low) 3.4
    Number of Reflections(Observed) 636
    Number of Reflections(R-Free) 50
    R-Factor(R-Work) 0.2628
    R-Factor(R-Free) 0.277
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.4
    Shell Resolution(Low) 3.66
    Number of Reflections(Observed) 644
    Number of Reflections(R-Free) 60
    R-Factor(R-Work) 0.297
    R-Factor(R-Free) 0.2816
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.64
    c_dihedral_angle_d 15.6
    c_angle_deg 1.0
    c_bond_d 0.007
     
    Coordinate Error
    Luzzati ESD(Observed) 0.4
    Luzzati Sigma A(Observed) 0.37
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.48
    Luzzati Sigma A(R-Free Set) 0.41
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 892
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 27
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement CNS 1.0
     
    Software
    refinement CNS version: 1.0
    model building AMoRE