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X-RAY DIFFRACTION
Materials and Methods page
1JHN
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 7.5
    Temperature 277.0
    Details HEPES, MPD, Calcium chloride, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 85.77 α = 90
    b = 85.77 β = 90
    c = 143.48 γ = 90
     
    Space Group
    Space Group Name:    P 43 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Collection Date 1999-01-27
     
    Diffraction Radiation
    Monochromator Si 111
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type NSLS BEAMLINE X8C
    Wavelength List 1.4
    Site NSLS
    Beamline X8C
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 2.9
    Resolution(Low) 35
    Number Reflections(All) 12339
    Number Reflections(Observed) 12339
    Percent Possible(Observed) 99.4
    R Merge I(Observed) 0.046
    B(Isotropic) From Wilson Plot 84.5
    Redundancy 6.7
     
    High Resolution Shell Details
    Resolution(High) 2.9
    Resolution(Low) 3.0
    Percent Possible(All) 99.6
    R Merge I(Observed) 0.245
    Mean I Over Sigma(Observed) 5.4
    R-Sym I(Observed) 0.245
    Redundancy 6.7
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method MIRAS, SAS, MAD
    reflnsShellList 2.9
    Resolution(Low) 33.8
    Cut-off Sigma(I) 2.0
    Cut-off Sigma(F) 4.0
    Number of Reflections(all) 12318
    Number of Reflections(Observed) 11392
    Number of Reflections(R-Free) 529
    R-Work 0.327
    R-Free 0.377
    R-Free Selection Details random
     
    Temperature Factor Modeling
    Mean Isotropic B Value 59.5
    Anisotropic B[1][1] -11.9
    Anisotropic B[1][2] 0.0
    Anisotropic B[1][3] 0.0
    Anisotropic B[2][2] -11.9
    Anisotropic B[2][3] 0.0
    Anisotropic B[3][3] 23.81
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.41
    c_dihedral_angle_d 25.2
    c_angle_deg 1.7
    c_bond_d 0.011
     
    Coordinate Error
    Luzzati ESD(Observed) 0.61
    Luzzati Sigma A(Observed) 0.82
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.76
    Luzzati Sigma A(R-Free Set) 1.06
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 2853
    Nucleic Acid Atoms 0
    Heterogen Atoms 1
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution SHARP
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building SHARP
    data reduction SCALEPACK
    data collection DENZO