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The study of solitons in DNA double helices

Gen-fa Zhou

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A dynamical theory of soliton excitation in DNA double helices has been studied with a more reasonable hamiltonian. The coupled Sine-Lattice (SL) equations of bases are directly solved, since the small angle approximation and the continuum approximation are invalid in this theory. At last, some ranges of the parameters are given in which certain π-kink, 2π-kink and (or) breather-like solutions exist in DNA chains.


PACS

87.14.G- Nucleic acids

02.30.Mv Approximations and expansions

02.60.Cb Numerical simulation; solution of equations

87.15.B- Structure of biomolecules

Subjects

Mathematical physics

Computational physics

Biological physics

Dates

Issue 5 (1989)

Received 19 September 1988



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