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An Information Portal to 105097 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1UN3
  •   Crystallization Hide
    Crystallization Experiments
    pH 5.2
    Details 15% PEG 4000, 0.02% DIOXANE, 0.2M SODIUM POTASSIUM TARTRATE, 0.02M SODIUM CITRATE BUFFER, PH 5.2
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 88.4 α = 90
    b = 41.53 β = 90
    c = 33.76 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 293
     
    Diffraction Detector
    Detector CCD
    Type ADSC
    Details RH/SI MIRROR
    Collection Date 1999-09-20
     
    Diffraction Radiation
    Monochromator SILICON
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SRS BEAMLINE PX9.6
    Wavelength 0.87
    Site SRS
    Beamline PX9.6
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 1.7
    Resolution(Low) 40
    Number Reflections(Observed) 13959
    Percent Possible(Observed) 97.2
    R Merge I(Observed) 0.104
    Redundancy 7.7
     
    High Resolution Shell Details
    Resolution(High) 1.7
    Resolution(Low) 1.76
    Percent Possible(All) 99.7
    R Merge I(Observed) 0.377
    Mean I Over Sigma(Observed) 9.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.7
    Resolution(Low) 44.28
    Number of Reflections(Observed) 13235
    Number of Reflections(R-Free) 704
    Percent Reflections(Observed) 97.2
    R-Factor(Observed) 0.2
    R-Work 0.199
    R-Free 0.223
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 23.39
    Anisotropic B[1][1] -0.09
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.78
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.69
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.7
    Shell Resolution(Low) 1.79
    Number of Reflections(R-Free) 96
    Number of Reflections(R-Work) 1926
    R-Factor(R-Work) 0.206
    R-Factor(R-Free) 0.22
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_scangle_it 3.914
    r_scbond_it 2.369
    r_mcangle_it 1.789
    r_mcbond_it 0.943
    r_nbd_refined 0.187
    r_gen_planes_refined 0.004
    r_chiral_restr 0.098
    r_dihedral_angle_1_deg 5.691
    r_angle_other_deg 1.279
    r_bond_refined_d 0.01
    r_xyhbond_nbd_refined 0.131
    r_symmetry_vdw_refined 0.137
    r_symmetry_hbond_refined 0.06
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 874
    Nucleic Acid Atoms 0
    Heterogen Atoms 0
    Solvent Atoms 78
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement REFMAC 5.1.19
     
    Software
    refinement REFMAC version: 5.1.19
    model building AMORE