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X-RAY DIFFRACTION
Materials and Methods page
4IS2
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, SITTING DROP
    pH 4.5
    Temperature 293.0
    Details 0.1M sodium acetate pH 4.5, 2.5M sodium chloride, 0.2M lithium sulfate, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 54.04 α = 90
    b = 93.18 β = 90
    c = 105.44 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 MARMOSAIC 325 mm CCD
    Details double crystal monochromator
    Collection Date 2010-05-13
     
    Diffraction Radiation
    Monochromator double crystal
    Diffraction Protocol MAD
     
    Diffraction Source
    Source SYNCHROTRON
    Type SSRL BEAMLINE BL9-2
    Wavelength List 0.91162, 0.97934, 0.97915
    Site SSRL
    Beamline BL9-2
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 1.9
    Resolution(Low) 29.79
    Number Reflections(All) 21347
    Number Reflections(Observed) 21347
    Percent Possible(Observed) 99.9
    Net I Over Average Sigma(I) 7.675
    Redundancy 3.7
     
    High Resolution Shell Details
    Resolution(High) 1.9
    Resolution(Low) 1.95
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.758
    Mean I Over Sigma(Observed) 1.7
    R-Sym I(Observed) 0.758
    Redundancy 3.7
    Number Unique Reflections(All) 1573
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MAD
    reflnsShellList 1.9
    Resolution(Low) 29.794
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 21345
    Number of Reflections(R-Free) 1097
    Percent Reflections(Observed) 99.63
    R-Factor(Observed) 0.1629
    R-Work 0.1616
    R-Free 0.1873
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 44.9133
    Anisotropic B[1][1] -0.87
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 2.64
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -1.77
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.9
    Shell Resolution(Low) 1.949
    Number of Reflections(R-Free) 71
    Number of Reflections(R-Work) 1495
    R-Factor(R-Work) 0.291
    R-Factor(R-Free) 0.296
    Percent Reflections(Observed) 99.81
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_scbond_it 5.983
    r_mcangle_it 5.652
    r_mcbond_other 4.165
    r_bond_refined_d 0.011
    r_bond_other_d 0.001
    r_angle_refined_deg 1.404
    r_angle_other_deg 0.729
    r_dihedral_angle_1_deg 5.483
    r_dihedral_angle_2_deg 39.26
    r_dihedral_angle_3_deg 14.245
    r_dihedral_angle_4_deg 14.652
    r_chiral_restr 0.07
    r_gen_planes_refined 0.005
    r_gen_planes_other 0.001
    r_mcbond_it 4.167
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1592
    Nucleic Acid Atoms 0
    Heterogen Atoms 1
    Solvent Atoms 101
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) SCALA
    Structure Solution SHELXD,SHARP
    Structure Refinement REFMAC 5.7.0032
     
    Software
    refinement REFMAC5 version: 5.7.0032
    phasing SCALA version: 3.3.15
    phasing SHARP
    phasing SHELX
    data extraction pdb_extract version: 3.10
    validation MOLPROBITY version: 3beta29