Stuctural and Mechanical Properties of Model DNA

  • Thomas  E. Ouldridge
Part of the Springer Theses book series (Springer Theses)


The model is specifically designed to allow an approximate representation of B-DNA in its double-stranded state. The relative sizes of the equilibrium backbone separation and ideal stacking distance lead to a pitch of 10.34 bp per turn at 296.15 K (\(23^{\mathrm o}\)C, approximately room temperature) similar to experimental estimates of 10–10.5. The model length scale is chosen so that the average rise per bp at room temperature is 3.4 Å, which results in a helix with a radius (taken as the furthest extent of the excluded volume) of 11.5 Å, comparable to the experimental value of 11.5–12 Å.


Single Strand Persistence Length Helix Axis Exclude Volume Interaction Strand Length 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Thomas  E. Ouldridge
    • 1
  1. 1.University of OxfordOxfordUK

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