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X-RAY DIFFRACTION
Materials and Methods page
1G9N
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 5.9
    Temperature 293.0
    Details VAPOUR DIFFUSION CRYSTALLIZATION: 0.5 UL OF PROTEIN (5 MG/ML IN 0.35 M NACL, 0.005 M TRIS CL PH 7.0) + 0.35 UL OF RESERVOIR (50 UL OF NA ACETATE pH 4.5 + 250 UL OF HAMPTON CRYSTAL SCREEN REAGENT 18 + 126 UL OF ETHANOL + 292 UL OF WATER), pH 5.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 174.98 α = 90
    b = 81.71 β = 90.37
    c = 74.48 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 ADSC QUANTUM 4
    Collection Date 2000-04-26
     
    Diffraction Radiation
    Monochromator silicon crystal
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X4A
    Wavelength List 0.9721
    Site NSLS
    Beamline X4A
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) -3.0
    Resolution(High) 2.9
    Resolution(Low) 20
    Number Reflections(All) 102604
    Number Reflections(Observed) 23464
    Percent Possible(Observed) 98.5
    R Merge I(Observed) 0.093
    B(Isotropic) From Wilson Plot 60.5
    Redundancy 4.37
     
    High Resolution Shell Details
    Resolution(High) 2.9
    Resolution(Low) 3.0
    Percent Possible(All) 97.1
    R Merge I(Observed) 0.439
    Mean I Over Sigma(Observed) 2.33
    R-Sym I(Observed) 0.439
    Redundancy 3.3
    Number Unique Reflections(All) 2315
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MOLECULAR REPLACEMENT
    reflnsShellList 2.9
    Resolution(Low) 20.0
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 23385
    Number of Reflections(Observed) 23030
    Number of Reflections(R-Free) 1160
    Percent Reflections(Observed) 96.8
    R-Work 0.2068
    R-Free 0.295
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model Isotropic
    Mean Isotropic B Value 68.1
    Anisotropic B[1][1] 5.426
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] 8.516
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] -13.941
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 2.9
    Shell Resolution(Low) 2.94
    Number of Reflections(Observed) 907
    Number of Reflections(R-Free) 56
    Number of Reflections(R-Work) 907
    R-Factor(R-Work) 0.334
    R-Factor(R-Free) 0.3937
    R-Free Error 0.053
    Percent Reflections(Observed) 95.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 0.79
    c_dihedral_angle_d 25.6
    c_scangle_it 2.86
    c_mcangle_it 2.82
    c_scbond_it 1.738
    c_mcbond_it 1.568
    c_angle_deg 1.138
    c_bond_d 0.008
     
    Coordinate Error
    Luzzati ESD(Observed) 0.33
    Luzzati Sigma A(Observed) 0.51
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.48
    Luzzati Sigma A(R-Free Set) 0.63
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 7173
    Nucleic Acid Atoms 0
    Heterogen Atoms 196
    Solvent Atoms 345
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution AMORE
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building AMORE
    data reduction SCALEPACK
    data collection DENZO