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X-RAY DIFFRACTION
Materials and Methods page
1HNW
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 6.5
    Temperature 277.0
    Details VAPOR DIFFUSION, HANGING DROP at 277 K. MPD, NH4CL, KCL, CACL2, MAGNESIUM ACETATE, SODIUM CACODYLATE, pH 6.5. 80 mM tetracycline soaked into preformed crystals., pH 6.50
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 401.16 α = 90
    b = 401.16 β = 90
    c = 176.94 γ = 90
     
    Space Group
    Space Group Name:    P 41 21 2
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 100
     
    Diffraction Detector
    Detector CCD
    Type ADSC QUANTUM 4
    Collection Date 2000-07-25
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source SYNCHROTRON
    Type ESRF BEAMLINE ID14-4
    Wavelength 0.93950
    Site ESRF
    Beamline ID14-4
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 0.0
    Observed Criterion Sigma(I) 0.0
    Resolution(High) 3.4
    Resolution(Low) 99
    Number Reflections(All) 193543
    Number Reflections(Observed) 193543
    Percent Possible(Observed) 97.4
    B(Isotropic) From Wilson Plot 63.434
    Redundancy 3.6
     
    High Resolution Shell Details
    Resolution(High) 3.4
    Resolution(Low) 3.52
    Percent Possible(All) 95.4
    Mean I Over Sigma(Observed) 1.55
    R-Sym I(Observed) 0.411
    Redundancy 2.8
    Number Unique Reflections(All) 18728
     
     
  •   Refinement Hide
    Refinement Statistics
    Structure Solution Method FOURIER SYNTHESIS
    reflnsShellList 3.4
    Resolution(Low) 29.75
    Cut-off Sigma(I) 0.0
    Cut-off Sigma(F) 0.0
    Number of Reflections(all) 181736
    Number of Reflections(Observed) 181736
    Number of Reflections(R-Free) 9128
    Percent Reflections(Observed) 92.5
    R-Factor(Observed) 0.222
    R-Work 0.222
    R-Free 0.264
    R-Free Selection Details RANDOM
     
    Temperature Factor Modeling
    Isotropic Thermal Model ISOTROPIC
    Mean Isotropic B Value 64.49
     
    Resolution Shells
    Refinement method X-RAY DIFFRACTION
    Shell Resolution(High) 3.4
    Shell Resolution(Low) 3.52
    Number of Reflections(R-Free) 835
    Number of Reflections(R-Work) 15251
    R-Factor(R-Work) 0.2955
    R-Factor(R-Free) 0.3295
    Percent Reflections(Observed) 83.0
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    c_improper_angle_d 1.6
    c_bond_d 0.007
    c_angle_deg 1.26
    c_dihedral_angle_d 28.4
     
    Coordinate Error
    Luzzati ESD(Observed) 0.39
    Luzzati Sigma A(Observed) 0.53
    Luzzati Resolution Cutoff(Low) 5.0
    Luzzati ESD(R-Free Set) 0.46
    Luzzati Sigma A(R-Free Set) 0.54
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 19264
    Nucleic Acid Atoms 32508
    Heterogen Atoms 162
    Solvent Atoms 0
     
     
  •   Software and Computing Hide
    Computing
    Data Reduction (intensity integration) DENZO
    Data Reduction (data scaling) SCALEPACK
    Structure Solution CNS
    Structure Refinement CNS
     
    Software
    refinement CNS
    model building CNS
    data reduction SCALEPACK
    data collection DENZO