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X-RAY DIFFRACTION
Materials and Methods page
2I7T
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 6.5
    Temperature 294.0
    Details 100mM MOPS (pH 6.5), 16% PEG 3350, 300mM sodium sulfate, VAPOR DIFFUSION, SITTING DROP, temperature 294K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 58.83 α = 90
    b = 82.6 β = 90
    c = 103.71 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Details MIRRORS
     
    Diffraction Radiation
    Monochromator SI(111)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X4A
    Wavelength 0.9798
    Site NSLS
    Beamline X4A
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2.1
    Resolution(Low) 30
    Number Reflections(Observed) 30029
    Percent Possible(Observed) 99.6
    R Merge I(Observed) 0.048
    B(Isotropic) From Wilson Plot 23.9
    Redundancy 4.0
     
    High Resolution Shell Details
    Resolution(High) 2.1
    Resolution(Low) 2.18
    Percent Possible(All) 99.3
    R Merge I(Observed) 0.296
    Mean I Over Sigma(Observed) 4.132
    Redundancy 4.1
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.1
    Resolution(Low) 29.42
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 29144
    Number of Reflections(R-Free) 2200
    Percent Reflections(Observed) 96.6
    R-Factor(Observed) 0.231
    R-Work 0.231
    R-Free 0.276
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 45.3
    Anisotropic B[1][1] 1.15
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -5.65
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 4.5
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.1
    Shell Resolution(Low) 2.18
    Number of Reflections(R-Free) 201
    Number of Reflections(R-Work) 2468
    R-Factor(R-Work) 0.271
    R-Factor(R-Free) 0.331
    R-Free Error 0.023
    Percent Reflections(Observed) 89.7
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 3.45
    c_scbond_it 2.28
    c_mcangle_it 2.71
    c_mcbond_it 1.64
    c_improper_angle_d 0.75
    c_dihedral_angle_d 24.2
    c_angle_deg 1.3
    c_bond_d 0.006
     
    Coordinate Error
    Luzzati ESD(Observed) 0.27
    Luzzati Sigma A(Observed) 0.19
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.34
    Luzzati Sigma A(R-Free Set) 0.25
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3236
    Nucleic Acid Atoms 0
    Heterogen Atoms 7
    Solvent Atoms 161
     
     
  •   Software and Computing Hide
    Computing
    Data Collection ADSC QUANTUM
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution COMO
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building SHAKE&BAKE version: THEN SOLVE/RESOLVE