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X-RAY DIFFRACTION
Materials and Methods page
1A4Y
  •   Crystallization Hide
    Crystallization Experiments
    pH 4.2
    Details THE COMPLEX WAS CRYSTALLIZED FROM 10% PEG4000, 20MM SODIUM CITRATE (PH 4.2), 0.1 AMMONIUM SULPHATE AND 25 MM DTT.
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 66.55 α = 90
    b = 105.61 β = 107.09
    c = 93.52 γ = 90
     
    Space Group
    Space Group Name:    P 1 21 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 289
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type MARRESEARCH
    Collection Date 1996-06
     
    Diffraction Radiation
     
    Diffraction Source
    Source SYNCHROTRON
    Type SRS BEAMLINE PX9.6
    Wavelength 0.87
    Wavelength List 0.87, 1.5418
    Site SRS
    Beamline PX9.6
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2
    Resolution(Low) 40
    Number Reflections(Observed) 72355
    Percent Possible(Observed) 86.9
    R Merge I(Observed) 0.094
    B(Isotropic) From Wilson Plot 40.4
    Redundancy 2.2
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.07
    Percent Possible(All) 65.4
    R Merge I(Observed) 0.436
    Mean I Over Sigma(Observed) 1.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 20.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 72308
    Percent Reflections(Observed) 86.9
    R-Factor(Observed) 0.193
    R-Work 0.193
    R-Free 0.286
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 42.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_scangle_it 8.3
    x_scbond_it 5.3
    x_mcangle_it 4.2
    x_mcbond_it 2.6
    x_bond_d 0.009
    x_angle_deg 1.4
     
    Coordinate Error
    Luzzati Sigma A(R-Free Set) 0.36
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 8806
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 133
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO, XDS
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution X-PLOR 3.8
    Structure Refinement X-PLOR 3.8
     
    Software
    refinement X-PLOR version: 3.8
    model building X-PLOR version: 3.8
    data reduction SCALA
    data collection XDS
    data collection DENZO