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X-RAY DIFFRACTION
Materials and Methods page
1K5B
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 5.2
    Temperature 289.0
    Details sodium citrate, sodium potassium tartrate, PEG 6000, pH 5.2, VAPOR DIFFUSION, HANGING DROP, temperature 289K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 86.45 α = 90
    b = 40.41 β = 90
    c = 32.98 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 2
     
     
  •   Diffraction Hide
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Detector AREA DETECTOR
    Type XENTRONICS
    Collection Date 1997-02-11
     
    Diffraction Radiation
    Monochromator MIRRORS
    Diffraction Protocol SINGLE WAVELENGTH
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SRS BEAMLINE PX9.5
    Wavelength List 0.8
    Site SRS
    Beamline PX9.5
    Source ROTATING ANODE
    Type SIEMENS
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) -3.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.8
    Resolution(Low) 30
    Number Reflections(All) 10158
    Number Reflections(Observed) 10158
    Percent Possible(Observed) 92.3
    R Merge I(Observed) 0.073
    B(Isotropic) From Wilson Plot 21.4
    Redundancy 3.8
     
    High Resolution Shell Details
    Resolution(High) 1.8
    Resolution(Low) 1.9
    Percent Possible(All) 90.0
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.8
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 9945
    Number of Reflections(Observed) 9945
    Number of Reflections(R-Free) 528
    Percent Reflections(Observed) 88.4
    R-Factor(All) 0.206
    R-Factor(Observed) 0.206
    R-Work 0.206
    R-Free 0.275
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 29.9
    Anisotropic B[1][1] 0.0
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.0
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 0.0
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.8
    Shell Resolution(Low) 1.91
    Number of Reflections(Observed) 1585
    Number of Reflections(R-Free) 85
    Number of Reflections(R-Work) 1585
    R-Factor(R-Work) 0.304
    R-Factor(R-Free) 0.321
    R-Free Error 0.033
    Percent Reflections(Observed) 91.2
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 5.6
    x_scbond_it 3.75
    x_mcangle_it 3.61
    x_mcbond_it 2.28
    x_improper_angle_d 0.81
    x_bond_d 0.009
    x_angle_deg 1.8
    x_dihedral_angle_d 27.5
     
    Coordinate Error
    Luzzati ESD(Observed) 0.23
    Luzzati Sigma A(Observed) 0.26
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.3
    Luzzati Sigma A(R-Free Set) 0.24
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 963
    Nucleic Acid Atoms 0
    Heterogen Atoms 13
    Solvent Atoms 57
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) XENGEN
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement X-PLOR 3.851
     
    Software
    refinement X-PLOR(ONLINE) version: 3.851
    model building AMoRE
    data reduction SCALEPACK
    data collection XENGEN