Energy patterns in twist-opening models of DNA with solvent interactions

Conrad Bertrand Tabi, Grégoire Bineli, Alidou Mohamadou

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4 Citations (Scopus)

Abstract

Energy localization, via modulation instability, is addressed in a modified twist-opening model of DNA with solvent interactions. The Fourier expansion method is used to reduce the complex roto-torsional equations of the system to a set of discrete coupled nonlinear Schrödinger equations, which are used to perform the analytical investigation of modulation instability. We find that the instability criterion is highly influenced by the solvent parameters. Direct numerical simulations, performed on the generic model, further confirm our analytical predictions, as solvent interactions bring about highly localized energy patterns. These patterns are also shown to be robust under thermal fluctuations.

Original languageEnglish
Pages (from-to)391-408
Number of pages18
JournalJournal of Biological Physics
Volume41
Issue number4
DOIs
Publication statusPublished - Sep 28 2015

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All Science Journal Classification (ASJC) codes

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • Molecular Biology
  • Cell Biology

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