Self-Localized Anharmonic Rotational Modes of Bases in DNA
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概要
- 論文の詳細を見る
Nonlinear dynamics of a DNA double helix is studied on the assumption that oneof the most flexible and relevant modes leading eventually to a local denaturation isnonlinear collective modes of base twisting. The hydrogen-bonding energy, thedipole-dipole interaction energy, the local-field energy, and the stacking energy are incorporated in the Hamiltonian for a plane base-rotator model. Equations of motionsatisfied by base pairs are of the form of a generalized version of a two-componentdouble sine-Gordon equation in a quasi-one-dimensional "aperiodic" lattice. By introducting Green's functions of the aperiodic lattice, a detailed analytical study ismade to obtain stationary localized-mode solutions to the equations. A brief discus-sion is given on implications of such nonlinear-brcathing-type modes to a possibleprecursor to the local denaturation.
- 社団法人日本物理学会の論文
- 1990-05-15
著者
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Homma Shigeo
Department Of Applied Physics Faculty Of Engineering Nagoya University
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Takeno Shozo
Physics Laboratory Faculty Of Engineering And Desigh Kyoto Institute Of Technology
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Takeno Shozo
Physics Laboratory Department Of Electronics Faculty Of Engineering And Design Kyoto Institute Of Te
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Homma Shigeo
Department of Physics,Faculty of Engineering,Gunma University
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