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Journal of Experimental and Theoretical Physics

, Volume 85, Issue 6, pp 1180–1186 | Cite as

Effect of electroelastic anisotropy of DNA-like molecules on their tertiary structure

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

Abstract

Under certain conditions, mechanical forces can cause an anisotropic molecule like DNA to assume a toroidal spatial structure. A simple model describing such a behavior is suggested. The model incorporates anisotropic elastic energy and external electrical forces. The steady-state structures formed by a macromolecule have been studied numerically using this model. There exist ranges of model parameters, namely, the anisotropy of the elastic tensor, magnitude and orientation of forces, and modulation periods, where molecules have toroidal, spherical, or extended structures. Estimates of parameters characteristic of these structures are consistent with experimental data. In particular, the toroidal structure dimension corresponds to experimental dimensions of toroidal globules produced as a result of so-called PSI condensation of DNA molecules.

Keywords

Anisotropy Elementary Particle Macromolecule Spatial Structure Elastic Energy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© American Institute of Physics 1997

Authors and Affiliations

  • V. L. Golo
    • 1
  • Yu. M. Evdokimov
    • 2
  • E. I. Kats
    • 3
  1. 1.Mechanico-Mathematical Department of 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

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