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X-RAY DIFFRACTION
Materials and Methods page
2AH4
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 5
    Temperature 298.0
    Details ammonium sulfate, bis-tris propane, calcium chloride, 4-nitrophenyl 4-guanidinobenzoate, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 54.45 α = 90
    b = 57.91 β = 90
    c = 66.77 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Collection Date 2005-04-01
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ALS BEAMLINE 8.3.1
    Wavelength List 1.00000
    Site ALS
    Beamline 8.3.1
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 1.13
    Resolution(Low) 43.85
    Number Reflections(All) 75171
    Number Reflections(Observed) 75171
    Percent Possible(Observed) 99.97
    R Merge I(Observed) 0.056
    Redundancy 3.5
     
    High Resolution Shell Details
    Resolution(High) 1.13
    Resolution(Low) 1.19
    R Merge I(Observed) 0.533
    Mean I Over Sigma(Observed) 1.5
    R-Sym I(Observed) 0.533
    Redundancy 1.6
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 1.13
    Resolution(Low) 43.85
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 75169
    Number of Reflections(Observed) 75169
    Number of Reflections(R-Free) 3830
    Percent Reflections(Observed) 99.97
    R-Factor(All) 0.12
    R-Factor(Observed) 0.12
    R-Work 0.119
    R-Free 0.146
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model anisotropic
    Mean Isotropic B Value 8.644
    Anisotropic B[1][1] 0.81
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -0.39
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -0.42
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 1.13
    Shell Resolution(Low) 1.159
    Number of Reflections(R-Free) 186
    Number of Reflections(R-Work) 3475
    R-Factor(R-Work) 0.322
    R-Factor(R-Free) 0.326
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    r_sphericity_bonded 5.3
    r_sphericity_free 13.627
    r_rigid_bond_restr 5.558
    r_nbd_refined 0.364
    r_gen_planes_other 0.011
    r_gen_planes_refined 0.01
    r_chiral_restr 0.148
    r_dihedral_angle_4_deg 18.001
    r_dihedral_angle_3_deg 11.903
    r_dihedral_angle_2_deg 40.355
    r_dihedral_angle_1_deg 6.609
    r_angle_other_deg 2.686
    r_angle_refined_deg 1.794
    r_bond_other_d 0.004
    r_bond_refined_d 0.016
    r_nbd_other 0.26
    r_nbtor_other 0.093
    r_xyhbond_nbd_refined 0.211
    r_metal_ion_refined 0.128
    r_symmetry_vdw_refined 0.279
    r_symmetry_vdw_other 0.282
    r_symmetry_hbond_refined 0.271
    r_mcbond_it 2.719
    r_mcbond_other 1.429
    r_mcangle_it 3.563
    r_scbond_it 4.63
    r_scangle_it 5.931
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 1621
    Nucleic Acid Atoms 0
    Heterogen Atoms 33
    Solvent Atoms 359
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) MOSFLM
    Data Reduction (data scaling) CCP4 (SCALA, TRUNCATE)
    Structure Solution EPMR
    Structure Refinement REFMAC 5.2
     
    Software
    refinement REFMAC version: 5.2
    model building EPMR
    data reduction TRUNCATE
    data reduction SCALA
    data collection MOSFLM
     
     
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