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X-RAY DIFFRACTION
Materials and Methods page
1U55
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6
    Temperature 293.0
    Details PEG 3350, NaCl, pH 6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 91.48 α = 90
    b = 126.99 β = 94.33
    c = 42.57 γ = 90
     
    Space Group
    Space Group Name:    C 1 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Details mirrors
    Collection Date 2003-12-10
     
    Diffraction Radiation
    Monochromator DOUBLE CRYSTAL SI(111)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ALS BEAMLINE 8.2.2
    Wavelength List 1.00
    Site ALS
    Beamline 8.2.2
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.77
    Resolution(Low) 50
    Number Reflections(All) 46008
    Number Reflections(Observed) 46008
    Percent Possible(Observed) 96.6
    B(Isotropic) From Wilson Plot 31.2
     
    High Resolution Shell Details
    Resolution(High) 1.77
    Resolution(Low) 1.82
    Percent Possible(All) 97.5
    Mean I Over Sigma(Observed) 3.0
    R-Sym I(Observed) 0.312
    Redundancy 2.5
    Number Unique Reflections(All) 4536
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.77
    Resolution(Low) 29.97
    Cut-off Sigma(I) 3.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 47068
    Number of Reflections(Observed) 44407
    Number of Reflections(R-Free) 2661
    Percent Reflections(Observed) 94.2
    R-Work 0.227
    R-Free 0.257
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 43.6
    Anisotropic B[1][1] 2.5
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] -1.04
    Anisotropic B[2][2] 0.38
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -2.88
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.77
    Shell Resolution(Low) 1.81
    Number of Reflections(R-Free) 124
    Number of Reflections(R-Work) 2011
    R-Factor(R-Work) 0.342
    R-Factor(R-Free) 0.39
    R-Free Error 0.035
    Percent Reflections(Observed) 24.3
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.81
    c_scbond_it 2.86
    c_mcangle_it 2.18
    c_mcbond_it 1.4
    c_improper_angle_d 0.97
    c_dihedral_angle_d 21.2
    c_angle_deg 1.6
    c_bond_d 0.007
     
    Coordinate Error
    Luzzati ESD(Observed) 0.25
    Luzzati Sigma A(Observed) 0.19
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.28
    Luzzati Sigma A(R-Free Set) 0.21
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3081
    Nucleic Acid Atoms 0
    Heterogen Atoms 91
    Solvent Atoms 268
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) HKL-2000
    Data Reduction (data scaling) SCALEPACK
    Structure Solution MOLREP
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1