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X-RAY DIFFRACTION
Materials and Methods page
3S18
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.5
    Temperature 295.0
    Details 0.1M sodium caodylate, 0.2M sodium acetate, 18% PEG 8000, 20mM L-arginine, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 81.92 α = 90
    b = 81.92 β = 90
    c = 69.59 γ = 120
     
    Space Group
    Space Group Name:    P 3
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 295
     
    Diffraction Detector
    Detector IMAGE PLATE
    Type RIGAKU RAXIS IV++
    Details mirrors
    Collection Date 2008-08-19
     
    Diffraction Radiation
    Monochromator GRAPHITE
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type RIGAKU
    Wavelength List 1.5418
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 3.0
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2.2
    Resolution(Low) 50
    Number Reflections(All) 48875
    Number Reflections(Observed) 26032
    Percent Possible(Observed) 98.1
    R Merge I(Observed) 0.074
    B(Isotropic) From Wilson Plot 34.0
    Redundancy 1.67
     
    High Resolution Shell Details
    Resolution(High) 2.2
    Resolution(Low) 2.24
    Percent Possible(All) 97.7
    R Merge I(Observed) 0.327
    Mean I Over Sigma(Observed) 2.24
    Number Unique Reflections(All) 1302
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.2
    Resolution(Low) 35.3
    Number of Reflections(all) 26032
    Number of Reflections(Observed) 24713
    Number of Reflections(R-Free) 1319
    Percent Reflections(Observed) 98.12
    R-Factor(Observed) 0.17896
    R-Work 0.17652
    R-Free 0.2229
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 37.726
    Anisotropic B[1][1] 0.08
    Anisotropic B[1][2] 0.04
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 0.08
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.12
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.2
    Shell Resolution(Low) 2.257
    Number of Reflections(R-Free) 93
    Number of Reflections(R-Work) 1813
    R-Factor(R-Work) 0.218
    R-Factor(R-Free) 0.281
    Percent Reflections(Observed) 97.84
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_scangle_it 2.967
    r_scbond_it 1.832
    r_mcangle_it 1.118
    r_mcbond_it 0.575
    r_gen_planes_refined 0.005
    r_chiral_restr 0.096
    r_dihedral_angle_4_deg 16.449
    r_dihedral_angle_3_deg 16.153
    r_dihedral_angle_2_deg 28.95
    r_dihedral_angle_1_deg 6.542
    r_angle_refined_deg 1.325
    r_bond_refined_d 0.011
     
    Coordinate Error
    Luzzati ESD(Observed) 0.2435
    Luzzati Resolution Cutoff(Low) 27.72
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 3588
    Nucleic Acid Atoms 0
    Heterogen Atoms 18
    Solvent Atoms 138
     
     
  •   Software and Computing Hide
    Computing
    Data Collection CrystalClear
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution PHASER
    Structure Refinement REFMAC 5.5.0110
     
    Software
    refinement REFMAC version: 5.5.0110
    model building PHASER
    data collection CrystalClear