DNA Breathing Dynamics in the Presence of a Terahertz Field

Details DNA Breathing Dynamics in the Presence of a Terahertz Field DNA Breathing Dynamics in the Presence of a Terahertz Field

2009-10-28

arxiv.org/abs/0910.5294v1

Physics Letters A, Volume 374, Issue 10, 2010

Physics

Biological Physics

Scientific paper

10.1016/j.physleta.2009.12.077

We consider the influence of a terahertz field on the breathing dynamics of double-stranded DNA. We model the spontaneous formation of spatially localized openings of a damped and driven DNA chain, and find that linear instabilities lead to dynamic dimerization, while true local strand separations require a threshold amplitude mechanism. Based on our results we argue that a specific terahertz radiation exposure may significantly affect the natural dynamics of DNA, and thereby influence intricate molecular processes involved in gene expression and DNA replication.

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