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X-RAY DIFFRACTION
Materials and Methods page
1Q90
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    Temperature 277.0
    Details Reservoir: 25% PEG-MME 350, 40 millimolar TRIS HCL PH 8, 40 millimolar nacl, 0.2 millimolar laurylmaltoside, 30% glycerol. Drop: 1.3 microliter protein + 0.7 microliter reservoir, VAPOR DIFFUSION, HANGING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 102.45 α = 90
    b = 171.21 β = 90
    c = 351.01 γ = 90
     
    Space Group
    Space Group Name:    I 2 2 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type MARRESEARCH
    Collection Date 2002-09-15
     
    Diffraction Radiation
    Monochromator Two Si crystals
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE BM30A
    Wavelength List 1.00799
    Site ESRF
    Beamline BM30A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 1.8
    Resolution(High) 3.1
    Resolution(Low) 35
    Number Reflections(Observed) 56687
    Percent Possible(Observed) 99.6
    Redundancy 4.6
     
    High Resolution Shell Details
    Resolution(High) 3.1
    Resolution(Low) 3.27
    Percent Possible(All) 99.6
    R-Sym I(Observed) 0.39
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIR
    reflnsShellList 3.1
    Resolution(Low) 34.42
    Number of Reflections(Observed) 56134
    Number of Reflections(R-Free) 2848
    Percent Reflections(Observed) 99.5
    R-Factor(Observed) 0.222
    R-Work 0.222
    R-Free 0.261
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model GROUP
    Mean Isotropic B Value 69.9
    Anisotropic B[1][1] 8.27
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 18.14
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -26.41
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.1
    Shell Resolution(Low) 3.29
    Number of Reflections(R-Free) 460
    Number of Reflections(R-Work) 8740
    R-Factor(R-Work) 0.314
    R-Factor(R-Free) 0.348
    R-Free Error 0.016
    Percent Reflections(Observed) 99.1
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.91
    c_dihedral_angle_d 19.7
    c_angle_deg 1.3
    c_bond_d 0.008
     
    Coordinate Error
    Luzzati ESD(R-Free Set) 0.43
    Luzzati Sigma A(R-Free Set) 0.53
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7330
    Nucleic Acid Atoms 0
    Heterogen Atoms 446
    Solvent Atoms 2
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution MLPHARE
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1