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X-RAY DIFFRACTION
Materials and Methods page
1OGS
  •   Crystallization Hide
    Crystallization Experiments
    pH 4.6
    Details VAPOUR DIFFUSION AT ROOM TEMP DROP CONTAINS 1.5 MICROLITER OF PROTEIN SOLUTION (10MG/ML) AND 1.5 MICROLITER OF MOTHER LIQUOR. MOTHER LIQUOR CONTAINS 1M AMMONIUM SULFATE, 0.17M GUANIDINE HYDROCHLORIDE, 0.02M KCL, 0.1M ACETATE PH 4.6.
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 107.74 α = 90
    b = 285.23 β = 90
    c = 91.68 γ = 90
     
    Space Group
    Space Group Name:    C 2 2 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Collection Date 2003-03-15
     
    Diffraction Radiation
    Diffraction Protocol MAD
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-4
    Wavelength List 1.0092, 1.0075, 1.0015, 0.8856
    Site ESRF
    Beamline ID14-4
     
     
  •   Refinement Data Hide
    Reflection Details
    Resolution(High) 2
    Resolution(Low) 10
    Number Reflections(Observed) 93248
    Percent Possible(Observed) 98.4
    R Merge I(Observed) 0.065
    B(Isotropic) From Wilson Plot 15.6
    Redundancy 10.0
     
    High Resolution Shell Details
    Resolution(High) 2.0
    Resolution(Low) 2.1
    Percent Possible(All) 84.7
    R Merge I(Observed) 0.37
    Mean I Over Sigma(Observed) 1.23
    Redundancy 3.5
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MAD
    reflnsShellList 2.0
    Resolution(Low) 14.4
    Cut-off Sigma(F) 0.0
    Number of Reflections(Observed) 88501
    Number of Reflections(R-Free) 4690
    Percent Reflections(Observed) 93.3
    R-Factor(Observed) 0.195
    R-Work 0.195
    R-Free 0.23
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model RESTRAINED
    Mean Isotropic B Value 28.7
    Anisotropic B[1][1] 17.24
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -8.15
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -9.09
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.0
    Shell Resolution(Low) 2.13
    Number of Reflections(R-Free) 662
    Number of Reflections(R-Work) 12234
    R-Factor(R-Work) 0.301
    R-Factor(R-Free) 0.31
    R-Free Error 0.012
    Percent Reflections(Observed) 81.9
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_scangle_it 2.84
    c_scbond_it 1.95
    c_mcangle_it 1.9
    c_mcbond_it 1.21
    c_improper_angle_d 0.86
    c_bond_d 0.005
    c_angle_deg 1.3
    c_dihedral_angle_d 23.8
     
    Coordinate Error
    Luzzati ESD(Observed) 0.22
    Luzzati Sigma A(Observed) 0.32
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.27
    Luzzati Sigma A(R-Free Set) 0.31
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7859
    Nucleic Acid Atoms 0
    Heterogen Atoms 117
    Solvent Atoms 938
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution SHARP
    Structure Refinement CNS 1.1
     
    Software
    refinement CNS version: 1.1
    model building SHARP