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X-RAY DIFFRACTION
Materials and Methods page
1ZK9
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.5
    Temperature 291.0
    Details PEG 8000, ammonium sulfate, cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 291K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 69.2 α = 90
    b = 69.2 β = 90
    c = 64.74 γ = 120
     
    Space Group
    Space Group Name:    P 31 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 105
     
    Diffraction Detector
    Detector AREA DETECTOR
    Type MARRESEARCH
    Details mirrors
    Collection Date 1998-11-30
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU RU200B
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 2.0
    Observed Criterion Sigma(I) 1.0
    Resolution(High) 2.18
    Resolution(Low) 30
    Number Reflections(All) 9660
    Number Reflections(Observed) 8226
    Percent Possible(Observed) 85.0
    R Merge I(Observed) 0.061
    B(Isotropic) From Wilson Plot 30.2
    Redundancy 11.2
     
    High Resolution Shell Details
    Resolution(High) 2.18
    Resolution(Low) 2.26
    Percent Possible(All) 99.0
    R Merge I(Observed) 0.46
    Mean I Over Sigma(Observed) 2.5
    Redundancy 10.0
    Number Unique Reflections(All) 952
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.18
    Resolution(Low) 14.98
    Cut-off Sigma(F) 2.0
    Number of Reflections(all) 9660
    Number of Reflections(Observed) 8178
    Number of Reflections(R-Free) 509
    Percent Reflections(Observed) 84.8
    R-Factor(Observed) 0.195
    R-Work 0.195
    R-Free 0.218
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 48.5
    Anisotropic B[1][1] 5.93
    Anisotropic B[1][2] 6.82
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 5.93
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -11.87
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.18
    Shell Resolution(Low) 2.32
    Number of Reflections(R-Free) 61
    Number of Reflections(R-Work) 897
    R-Factor(R-Work) 0.258
    R-Factor(R-Free) 0.255
    R-Free Error 0.033
    Percent Reflections(Observed) 59.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 7.61
    c_scbond_it 5.49
    c_mcangle_it 4.47
    c_mcbond_it 3.27
    c_improper_angle_d 0.96
    c_dihedral_angle_d 25.9
    c_angle_deg 1.5
    c_bond_d 0.005
     
    Coordinate Error
    Luzzati ESD(Observed) 0.24
    Luzzati Sigma A(Observed) 0.24
    Luzzati Resolution Cutoff(Low) 6.0
    Luzzati ESD(R-Free Set) 0.28
    Luzzati Sigma A(R-Free Set) 0.19
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 869
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 103
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1