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X-RAY DIFFRACTION
Materials and Methods page
1QK0
  •   Crystallization Hide
    Crystallization Experiments
    pH 6
    Details 20% PEG6000, 20MM MES BUFFER PH6.0, 10MM COCL2., pH 6.00
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 48.5 α = 90
    b = 74.69 β = 103.19
    c = 91.14 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU
    Details MIRRORS
    Collection Date 1995-12-31
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.1
    Resolution(Low) 44.3
    Number Reflections(Observed) 36553
    Percent Possible(Observed) 100.0
    R Merge I(Observed) 0.061
    B(Isotropic) From Wilson Plot 19.8
    Redundancy 3.4
     
    High Resolution Shell Details
    Resolution(High) 2.1
    Resolution(Low) 2.18
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.158
    Mean I Over Sigma(Observed) 6.7
    Redundancy 3.3
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method OTHER
    reflnsShellList 2.1
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 36490
    Number of Reflections(R-Free) 1427
    Percent Reflections(Observed) 98.8
    R-Factor(Observed) 0.181
    R-Work 0.181
    R-Free 0.221
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 18.1
    Anisotropic B[1][1] 0.63
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] -0.42
    Anisotropic B[2][2] -3.74
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 3.12
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.1
    Shell Resolution(Low) 2.23
    Number of Reflections(R-Free) 229
    Number of Reflections(R-Work) 5339
    R-Factor(R-Work) 0.195
    R-Factor(R-Free) 0.232
    R-Free Error 0.015
    Percent Reflections(Observed) 90.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 0.87
    c_scbond_it 0.54
    c_mcangle_it 0.69
    c_mcbond_it 0.39
    c_improper_angle_d 1.45
    c_bond_d 0.005
    c_angle_deg 1.2
    c_dihedral_angle_d 22.8
     
    Coordinate Error
    Luzzati ESD(Observed) 0.21
    Luzzati Sigma A(Observed) 0.12
    Luzzati Resolution Cutoff(Low) 20.0
    Luzzati ESD(R-Free Set) 0.27
    Luzzati Sigma A(R-Free Set) 0.17
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 5494
    Nucleic Acid Atoms 0
    Heterogen Atoms 271
    Solvent Atoms 511
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS 0.5
    Structure Refinement CNS 0.5
     
    Software
    refinement CNS version: 0.5
    model building CNS version: 0.5