Asymmetry of the propagation of conformational excitations in a double-strand DNA molecule

  • V. L. Golo
  • Yu. M. Evdokimov
  • E. I. Kats


A very simple model describing the conformational degrees of freedom of a double-strand DNA molecule is proposed. It is shown that the characteristic modes of the model consist of an acoustic (longitudinal with respect to the axis of the double helix) and two transverse optical modes. The latter modes are directly related with the deformations of the ideal structure of the double helix, which necessarily leads to softening of one of the optical modes on a finite wave vector. It is found that the conformational excitations propagating in DNA are asymmetric.

PACS numbers

87.15.Gg 87.15.He 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    W. Saenger, Principles of Nucleic Acid Structure (Springer-Verlag, New York, 1984).Google Scholar
  2. 2.
    S. B. Smith, L. Funzi, and C. Bustamante, Science 258, 1122 (1992).ADSGoogle Scholar
  3. 3.
    K. V. Klenin, M. D. Frank-Kamenetskii, and J. Langowski, Biophys. J. 68, 81 (1995).Google Scholar
  4. 4.
    H. Cappelmann and W. Beim, Z. der Phys. 209, 276 (1968).Google Scholar
  5. 5.
    L. F. Liu and J. C. Wang, Proc. Natl. Acad. Sci. USA 84, 7024 (1987).ADSGoogle Scholar
  6. 6.
    T. Dauxois, M. Peyrard, and A. R. Bishop, Phys. Rev. E 47, R44 (1993).CrossRefADSGoogle Scholar
  7. 7.
    M. Gueron, M. Kochoyan, and G. L. Leroy, Nature (London) 328, 89 (1987).ADSGoogle Scholar
  8. 8.
    V. L. Golo, Yu. M. Evdokimov, E. I. Kats, and S. G. Skuridin, Zh. É ksp. Teor. Fiz. 115, 940 (1999) [JETP 88, 517 (1999)].Google Scholar
  9. 9.
    B. E. Roulet, U. Bockelmann, and F. Heslot, La Recherche, 316, 37 (1999).Google Scholar

Copyright information

© MAIK "Nauka/Interperiodica" 1999

Authors and Affiliations

  • V. L. Golo
    • 1
  • Yu. M. Evdokimov
    • 2
  • E. I. Kats
    • 3
  1. 1.M. V. Lomonosov Moscow State UniversityMoscowRussia
  2. 2.Institute of Molecular BiologyRussian Academy of SciencesMoscowRussia
  3. 3.L. D. Landau Institute of Theoretical PhysicsRussian Academy of SciencesMoscowRussia

Personalised recommendations