High amplitude mode and DNA openingS. Zdravkovic1 and M. V. Sataric2
1 Fakultet tehnickih nauka, Univerzitet u Pristini - Kosovska Mitrovica, Serbia
2 Fakultet tehnickih nauka, Univerzitet u Novom Sadu - 21000 Novi Sad, Serbia
received 3 January 2007; accepted in final form 22 March 2007; published May 2007
published online 19 April 2007
In this article, we define and analyse an extremely high amplitude (EHA) mode in DNA dynamics. The dynamics of a DNA chain is described by the Peyrard-Bishop-Dauxois model. We show that a local opening of the DNA chain in a process of m-RNA transcription is the EHA behaviour. Also, we point out that the helicoidal structure brings about the possibility for the EHA mode to occur.
87.15.-v - Biomolecules: structure and physical properties.
31.15.Qg - Molecular dynamics and other numerical methods.
87.14.Gg - DNA, RNA.
© Europhysics Letters Association 2007