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X-RAY DIFFRACTION
Materials and Methods page
4GQS
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.5
    Temperature 297.0
    Details 20% PEG 2000, 10% isopropanol, 0.1M HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 159.19 α = 90
    b = 159.19 β = 90
    c = 450.03 γ = 120
     
    Space Group
    Space Group Name:    H 3 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 90
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 315
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SSRL BEAMLINE BL11-1
    Wavelength List 0.92014
    Site SSRL
    Beamline BL11-1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Resolution(High) 2.87
    Resolution(Low) 79.6
    Number Reflections(All) 50609
    Number Reflections(Observed) 50609
    Percent Possible(Observed) 100.0
    R Merge I(Observed) 0.087
    B(Isotropic) From Wilson Plot 76.5
    Redundancy 11.8
     
    High Resolution Shell Details
    Resolution(High) 2.87
    Resolution(Low) 3.03
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.498
    Mean I Over Sigma(Observed) 1.6
    Redundancy 12.0
    Number Unique Reflections(All) 7297
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.87
    Resolution(Low) 79.6
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 50609
    Number of Reflections(Observed) 50558
    Number of Reflections(R-Free) 2570
    Percent Reflections(Observed) 99.7
    R-Factor(Observed) 0.25
    R-Work 0.25
    R-Free 0.296
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 85.9
    Anisotropic B[1][1] 0.7
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.7
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -1.4
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.87
    Shell Resolution(Low) 2.97
    Number of Reflections(R-Free) 240
    Number of Reflections(R-Work) 4730
    R-Factor(R-Work) 0.351
    R-Factor(R-Free) 0.415
    R-Free Error 0.027
    Percent Reflections(Observed) 99.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 1.77
    c_scbond_it 1.08
    c_mcangle_it 1.59
    c_mcbond_it 0.88
    c_improper_angle_d 0.69
    c_bond_d 0.004
    c_angle_deg 0.8
    c_dihedral_angle_d 20.8
     
    Coordinate Error
    Luzzati ESD(Observed) 0.43
    Luzzati Sigma A(Observed) 0.57
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.56
    Luzzati Sigma A(R-Free Set) 0.76
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 14719
    Nucleic Acid Atoms 0
    Heterogen Atoms 274
    Solvent Atoms 50
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) SCALA
    Structure Solution PHASER
    Structure Refinement CNS 1.3
     
    Software
    refinement CNS version: 1.3
    model building PHASER