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X-RAY DIFFRACTION
Materials and Methods page
1QIZ
  •   Crystallization Hide
    Crystallization Experiments
    pH 6.8
    Details CRYSTALLISATION IN BATCH, 10 MG B5 TYR INSULIN DISSOLVED IN 2 ML 0.02M HCL. TO THIS ADDED 0.1 ML 0.12M ZINC ACETATE, 1.04 ML 0.2 M TRI-SODIUM CITRATE, 0.4 ML 5.0% (AQ.) PHENOL AND 120 MG NACL. PH ADJUSTED TO 6.5-7.8 .
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 60.81 α = 90
    b = 62.05 β = 110.4
    c = 47.65 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 RIGAKU
    Collection Date 1993-08-15
     
    Diffraction Radiation
    Monochromator GRAPHITE(002)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU/MSC RU-H2R
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2
    Resolution(Low) 19.2
    Number Reflections(Observed) 21525
    Percent Possible(Observed) 96.0
    R Merge I(Observed) 0.058
    B(Isotropic) From Wilson Plot 31.5
    Redundancy 2.5
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.1
    Percent Possible(All) 87.6
    R Merge I(Observed) 0.224
    Mean I Over Sigma(Observed) 3.0
    Redundancy 2.2
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.0
    Resolution(Low) 19.2
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 21525
    Number of Reflections(Observed) 21525
    Percent Reflections(Observed) 96.0
    R-Work 0.191
     
    Temperature Factor Modeling
    Mean Isotropic B Value 35.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    p_transverse_tor 12.2
    p_staggered_tor 18.4
    p_planar_tor 3.0
    p_xyhbond_nbd 0.204
    p_multtor_nbd 0.267
    p_bond_d 0.011
    p_angle_d 0.036
    p_planar_d 0.035
    p_mcbond_it 2.3
    p_mcangle_it 3.3
    p_scbond_it 5.6
    p_scangle_it 7.0
    p_plane_restr 0.016
    p_chiral_restr 0.136
    p_singtor_nbd 0.178
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2442
    Nucleic Acid Atoms 0
    Heterogen Atoms 52
    Solvent Atoms 159
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Refinement PROLSQ
     
    Software
    refinement PROLSQ