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An Information Portal to 109093 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
4EX8
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.2
    Temperature 277.0
    Details 20% PEG 3000, 0.2M calcium acetate, 0.1M MIB buffer, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 277.0K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 167.9 α = 90
    b = 167.9 β = 90
    c = 167.9 γ = 90
     
    Space Group
    Space Group Name:    I 41 3 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315r
    Collection Date 2008-11-14
     
    Diffraction Radiation
    Monochromator Si 111 CHANNEL
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID23-1
    Wavelength List 0.979
    Site ESRF
    Beamline ID23-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.1
    Resolution(Low) 83.92
    Number Reflections(Observed) 23665
    Percent Possible(Observed) 99.4
    R Merge I(Observed) 0.078
    B(Isotropic) From Wilson Plot 37.4
    Redundancy 6.0
     
    High Resolution Shell Details
    Resolution(High) 2.1
    Resolution(Low) 2.1
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.565
    Mean I Over Sigma(Observed) 2.8
    Redundancy 6.1
    Number Unique Reflections(All) 3412
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.1
    Resolution(Low) 41.96
    Number of Reflections(Observed) 22426
    Number of Reflections(R-Free) 1215
    Percent Reflections(Observed) 99.17
    R-Factor(Observed) 0.17375
    R-Work 0.17233
    R-Free 0.20055
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 47.906
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.1
    Shell Resolution(Low) 2.154
    Number of Reflections(R-Free) 93
    Number of Reflections(R-Work) 1489
    R-Factor(R-Work) 0.259
    R-Factor(R-Free) 0.303
    Percent Reflections(Observed) 99.94
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_gen_planes_refined 0.009
    r_chiral_restr 0.144
    r_dihedral_angle_4_deg 19.269
    r_dihedral_angle_3_deg 15.503
    r_dihedral_angle_2_deg 35.797
    r_dihedral_angle_1_deg 5.739
    r_angle_refined_deg 1.668
    r_bond_refined_d 0.022
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2172
    Nucleic Acid Atoms 0
    Heterogen Atoms 22
    Solvent Atoms 136
     
     
  •   Software and Computing Hide
    Computing
    Data Collection DNA
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) SCALA
    Structure Solution MOLREP
    Structure Refinement REFMAC 5.6.0117
     
    Software
    refinement REFMAC version: 5.6.0117
    model building MOLREP
    data collection DNA