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X-RAY DIFFRACTION
Materials and Methods page
3SQR
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 5
    Temperature 298.0
    Details 1 uL 20 mg/mL protein in 25 mM sodium acetate pH 5.0 + 1 uL precipitate solution (1.8 M ammonium sulfate), VAPOR DIFFUSION, SITTING DROP, temperature 298.0K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 69.67 α = 90
    b = 113.5 β = 108.75
    c = 79.91 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 MAR CCD 165 mm
    Collection Date 2011-04-14
     
    Diffraction Radiation
    Monochromator SAGITALLY FOCUSED Si(111)
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type KURCHATOV SNC BEAMLINE K4.4
    Wavelength List 0.9815
    Site KURCHATOV SNC
    Beamline K4.4
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 1.67
    Resolution(Low) 75.67
    Number Reflections(All) 69231
    Number Reflections(Observed) 65537
    Percent Possible(Observed) 96.3
    R Merge I(Observed) 0.038
    B(Isotropic) From Wilson Plot 29.6
    Redundancy 2.8
     
    High Resolution Shell Details
    Resolution(High) 1.67
    Resolution(Low) 1.77
    Percent Possible(All) 90.6
    R Merge I(Observed) 0.434
    Mean I Over Sigma(Observed) 2.13
    R-Sym I(Observed) 0.434
    Redundancy 2.5
    Number Unique Reflections(All) 9802
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.67
    Resolution(Low) 75.67
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 65537
    Number of Reflections(Observed) 62208
    Number of Reflections(R-Free) 3329
    Percent Reflections(Observed) 97.01
    R-Factor(Observed) 0.16628
    R-Work 0.16493
    R-Free 0.19116
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 22.462
    Anisotropic B[1][1] 0.11
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] -0.35
    Anisotropic B[2][2] 1.53
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -1.87
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.674
    Shell Resolution(Low) 1.717
    Number of Reflections(R-Free) 229
    Number of Reflections(R-Work) 4238
    R-Factor(R-Work) 0.28
    R-Factor(R-Free) 0.29
    Percent Reflections(Observed) 90.02
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_sphericity_bonded 8.762
    r_scangle_it 3.624
    r_scbond_it 2.551
    r_mcangle_it 1.682
    r_mcbond_other 0.352
    r_mcbond_it 1.085
    r_gen_planes_other 0.001
    r_gen_planes_refined 0.009
    r_chiral_restr 0.113
    r_dihedral_angle_4_deg 15.948
    r_dihedral_angle_3_deg 12.497
    r_dihedral_angle_2_deg 34.411
    r_dihedral_angle_1_deg 7.229
    r_angle_other_deg 1.422
    r_angle_refined_deg 1.912
    r_bond_other_d 0.001
    r_bond_refined_d 0.021
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 4181
    Nucleic Acid Atoms 0
    Heterogen Atoms 200
    Solvent Atoms 445
     
     
  •   Software and Computing Hide
    Computing
    Data Collection HKL-2000
    Data Reduction (intensity integration) XDS
    Data Reduction (data scaling) XSCALE
    Structure Solution MOLREP
    Structure Refinement REFMAC 5.5.0072
     
    Software
    refinement REFMAC version: 5.5.0072
    model building MOLREP
    data collection HKL-2000