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X-RAY DIFFRACTION
Materials and Methods page
1CQE
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.7
    Details CRYSTALLIZED BY HANGING DROP VAPOR DIFFUSION METHOD USING 1:1 RATIO OF PROTEIN SOLUTION (10 MG/ML IN 20 MM SODIUM PHOSPHATE BUFFER PH6.7, 100-200 MM NACL, 0.6% BETA-OCTYL GLUCOPYRANOSIDE, 0.1 MM FLURBIPORFEN) AND RESERVOIR OF 4-8% PEG 4000., VAPOR DIFFUSION, HANGING DROP
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 99.4 α = 90
    b = 210.3 β = 90
    c = 233.1 γ = 90
     
    Space Group
    Space Group Name:    I 2 2 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 277
     
    Diffraction Detector
    Detector AREA DETECTOR
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type ELLIOTT GX-21
    Wavelength 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 3.1
    Resolution(Low) 20
    Number Reflections(Observed) 32349
    Percent Possible(Observed) 96.0
    R Merge I(Observed) 0.076
     
    High Resolution Shell Details
    Resolution(High) 3.1
    Resolution(Low) 3.2
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR
    reflnsShellList 3.1
    Resolution(Low) 20.0
    Cut-off Sigma(F) 2.0
    Number of Reflections(Observed) 40353
    Number of Reflections(R-Free) 4665
    Percent Reflections(Observed) 94.3
    R-Factor(Observed) 0.186
    R-Work 0.186
    R-Free 0.226
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Data Not Available
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.1
    Shell Resolution(Low) 3.2
    Number of Reflections(R-Free) 481
    Number of Reflections(R-Work) 4310
    Percent Reflections(Observed) 92.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    x_improper_angle_d 1.49
    x_bond_d 0.013
    x_angle_deg 1.7
    x_dihedral_angle_d 23.3
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 8923
    Nucleic Acid Atoms 0
    Heterogen Atoms 360
    Solvent Atoms 130
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MADNES, PROCOR
    Data Reduction (data scaling) CCP4
    Structure Solution MLPHARE, CCP4
    Structure Refinement X-PLOR 3.1
     
    Software
    refinement X-PLOR version: 3.1
    model building CCP4
    model building MLPHARE
    data reduction CCP4
    data collection PROCOR
    data collection MADNES