Force-induced unzipping of DNA with long-range correlated sequence

Preprint English OPEN
Allahverdyan, A. E. ; Gevorkian, Zh. S. (2002)
  • Subject: Condensed Matter - Statistical Mechanics | Quantitative Biology | Condensed Matter - Disordered Systems and Neural Networks
    arxiv: Quantitative Biology::Biomolecules

We consider force-induced unzipping transition for a heterogeneous DNA model with a long-range correlated base-sequence. It is shown that as compared to the uncorrelated situation, long-range correlations smear the unzipping phase-transition, change its universality class and lead to non-self-averaging: the averaged behavior strongly differs from the typical ones. Several basic scenarios for this typical behavior are revealed and explained. The results can be relevant for explaining the biological purpose of long-range correlations in DNA.
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