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X-RAY DIFFRACTION
Materials and Methods page
2CN8
  •   Crystallization Hide
    Crystallization Experiments
    Details 0.1 M HEPES PH 7.5, 0.2 M MAGNESIUM NITRATE,8-16% (W/V) PEG 3350
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 88.65 α = 90
    b = 88.65 β = 90
    c = 88.9 γ = 120
     
    Space Group
    Space Group Name:    P 32 2 1
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC
    Collection Date 2005-09-26
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type SRS BEAMLINE PX14.1
    Wavelength 1.488
    Site SRS
    Beamline PX14.1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) 2.0
    Resolution(High) 2.7
    Resolution(Low) 39.65
    Number Reflections(Observed) 11261
    Percent Possible(Observed) 98.7
    R Merge I(Observed) 0.07
    Redundancy 4.3
     
    High Resolution Shell Details
    Resolution(High) 2.7
    Resolution(Low) 2.85
    Percent Possible(All) 100.0
    R Merge I(Observed) 0.53
    Mean I Over Sigma(Observed) 2.8
    Redundancy 4.3
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.7
    Resolution(Low) 76.7
    Number of Reflections(Observed) 10709
    Number of Reflections(R-Free) 541
    Percent Reflections(Observed) 98.4
    R-Factor(Observed) 0.207
    R-Work 0.204
    R-Free 0.271
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Mean Isotropic B Value 55.19
    Anisotropic B[1][1] 1.3
    Anisotropic B[1][2] 0.65
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 1.3
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -1.95
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.7
    Shell Resolution(Low) 2.77
    Number of Reflections(R-Free) 45
    Number of Reflections(R-Work) 787
    R-Factor(R-Work) 0.415
    R-Factor(R-Free) 0.431
    Percent Reflections(Observed) 99.76
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_scangle_it 3.92
    r_scbond_it 2.511
    r_mcangle_it 1.569
    r_mcbond_it 0.96
    r_nbd_refined 0.263
    r_gen_planes_refined 0.007
    r_chiral_restr 0.126
    r_dihedral_angle_4_deg 21.37
    r_dihedral_angle_3_deg 24.36
    r_dihedral_angle_2_deg 37.159
    r_dihedral_angle_1_deg 7.074
    r_angle_refined_deg 2.226
    r_nbtor_refined 0.325
    r_xyhbond_nbd_refined 0.22
    r_metal_ion_refined 0.31
    r_symmetry_vdw_refined 0.299
    r_symmetry_hbond_refined 0.358
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2152
    Nucleic Acid Atoms 0
    Heterogen Atoms 23
    Solvent Atoms 45
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (SCALA)
    Structure Solution PHASER
    Structure Refinement REFMAC 5.2.0019
     
    Software
    refinement REFMAC version: 5.2.0019
    model building PHASER