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Morse potential in DNA molecule – An experiment proposal

Abstract

We rely on the helicoidal Peyrard-Bishop model for DNA dynamics. Interaction between nucleotides at a same site belonging to different strands is modelled by a Morse potential energy. This potential depends on two parameters that are different for AT and CG pairs, which is a possible source for inhomogeneity. It was shown recently (Zdravković and Satarić 2011) that certain values of these parameters bring about a negligible influence of inhomogeneity on the solitonic dynamics. We propose an experiment that should be carried out in order to determine the values of both of these parameters.

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Acknowledgements

We want to thank to Dejan Milutinovich for his technical help and to the unknown referee for his/her useful suggestions and directions for future research.

This research was supported by funds from Serbian Ministry of Education and Sciences, grants III45010 and OI171009.

Author information

Correspondence to Slobodan Zdravković.

Additional information

[Zdravković S and Satarić MV 2012 Morse potential in DNA molecule – An experiment proposal. J. Biosci. 37 1–4] DOI

Corresponding editor: Basuthkar J Rao

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Zdravković, S., Satarić, M.V. Morse potential in DNA molecule – An experiment proposal. J Biosci 37, 613–616 (2012). https://doi.org/10.1007/s12038-012-9232-4

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Keywords

  • DNA molecule
  • experiment proposal
  • helicoidal Peyrard-Bishop model
  • micromanipulative experiments