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An Information Portal to 111558 Biological Macromolecular Structures

X-RAY DIFFRACTION
Materials and Methods page
1UN4
  •   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 = 86.55 α = 90
    b = 38.3 β = 90
    c = 39.04 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 2001-01-17
     
    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) 2.1
    Resolution(Low) 40
    Number Reflections(Observed) 7942
    Percent Possible(Observed) 98.6
    R Merge I(Observed) 0.056
    Redundancy 4.6
     
    High Resolution Shell Details
    Resolution(High) 2.1
    Resolution(Low) 2.18
    Percent Possible(All) 97.3
    R Merge I(Observed) 0.233
    Mean I Over Sigma(Observed) 5.1
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.1
    Resolution(Low) 43.44
    Number of Reflections(Observed) 7551
    Number of Reflections(R-Free) 367
    Percent Reflections(Observed) 98.6
    R-Factor(Observed) 0.193
    R-Work 0.191
    R-Free 0.232
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 28.81
    Anisotropic B[1][1] -0.96
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -0.83
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 1.79
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.1
    Shell Resolution(Low) 2.15
    Number of Reflections(R-Free) 28
    Number of Reflections(R-Work) 535
    R-Factor(R-Work) 0.203
    R-Factor(R-Free) 0.223
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_scangle_it 2.665
    r_scbond_it 1.652
    r_mcangle_it 1.411
    r_mcbond_it 0.763
    r_nbd_refined 0.179
    r_gen_planes_refined 0.004
    r_chiral_restr 0.091
    r_dihedral_angle_1_deg 5.959
    r_angle_other_deg 1.258
    r_bond_refined_d 0.011
    r_xyhbond_nbd_refined 0.177
    r_symmetry_vdw_refined 0.129
    r_symmetry_hbond_refined 0.117
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 913
    Nucleic Acid Atoms 0
    Heterogen Atoms 13
    Solvent Atoms 54
     
     
  •   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