Stochastic approach to DNA breathing dynamics

Details Stochastic approach to DNA breathing dynamics Stochastic approach to DNA breathing dynamics

2005-06-17

arxiv.org/abs/q-bio/0506025v1

Biology

Quantitative Biology

Biomolecules

7 pages, 6 figures, epl.cls

Scientific paper

10.1209/epl/i2005-10144-9

We propose a stochastic Gillespie scheme to describe the temporal fluctuations of local denaturation zones in double-stranded DNA as a single molecule time series. It is demonstrated that the model recovers the equilibrium properties. We also study measurable dynamical quantities such as the bubble size autocorrelation function. This efficient computational approach will be useful to analyse in detail recent single molecule experiments on clamped homopolymer breathing domains, to probe the parameter values of the underlying Poland-Scheraga model, as well as to design experimental conditions for similar setups.

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