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X-RAY DIFFRACTION
Materials and Methods page
1YSA
  •   Crystallization Hide
    Crystallization Experiments
    Method VAPOR DIFFUSION, HANGING DROP
    pH 5.75
    Temperature 295.0
    Details pH 5.75, VAPOR DIFFUSION, HANGING DROP, temperature 295.00K TWO ADENINES, B22 AND B23, WHICH ARE NEAR THE 5-PRIME END OF DNA CHAIN B ARE LOOPED OUT OF THE DNA HELIX. THIS CONFORMATION IS PRESENT IN CRYSTALS THAT WERE SOAKED IN 35% (VOL/VOL) POLYETHYLENE GLYCOL MW 400, FOLLOWED BY RAPID FREEZING AND X-RAY DATA COLLECTION AT -155 DEG. CENTIGRADE.
     
  •   Crystal Data Hide
    Unit Cell
    Length    (Å) Angle    (°)
    a = 49.13 α = 90
    b = 88.54 β = 90
    c = 59.24 γ = 90
     
    Space Group
    Space Group Name:    P 21 21 21
     
     
  •   Diffraction Hide
    Diffraction Experiment
    Diffrn ID 1
    Data Collection Temperature 118
     
    Diffraction Detector
    Detector AREA DETECTOR
    Type SIEMENS-NICOLET
     
    Diffraction Radiation
    Diffraction Protocol SINGLE WAVELENGTH
     
    Diffraction Source
    Source ROTATING ANODE
    Type ELLIOTT GX-13
     
     
  •   Refinement Data Hide
    Reflection Details
    Observed Criterion Sigma (F) 1.5
    Resolution(High) 2.9
    Resolution(Low) 8
    Number Reflections(Observed) 5289
    Percent Possible(Observed) 96.0
    R Merge I(Observed) 0.099
     
     
  •   Refinement Hide
    Refinement Statistics
    reflnsShellList 2.9
    Resolution(Low) 8.0
    Cut-off Sigma(F) 1.5
    Number of Reflections(Observed) 5289
    R-Factor(Observed) 0.23
     
    Temperature Factor Modeling
    Data Not Available
     
    RMS Deviations
    Parameter Type Deviation from Ideal
    t_angle_deg 3.3
    t_bond_d 0.023
     
    Number of Non-Hydrogen Atoms Used in Refinement
    Protein Atoms 941
    Nucleic Acid Atoms 814
    Heterogen Atoms 0
    Solvent Atoms 17
     
     
  •   Software and Computing Hide
    Computing
    Structure Refinement TNT
     
    Software
    refinement TNT