一种用于DNA分子的耦合振动和转动运动的模型。
A model coupling vibrational and rotational motion for the DNA molecule.
作者信息
Silva R A S, Filho E Drigo, Ruggiero J R
机构信息
Departamento de Física, Campus de São José do Rio Preto, UNESP, Rua Cristóvão Colombo, 2265 CEP, 15054-000, São José do Rio Preto, São Paulo, Brazil,
出版信息
J Biol Phys. 2008 Oct;34(5):511-9. doi: 10.1007/s10867-008-9111-2. Epub 2008 Sep 17.
Abstract
We investigate a mechanical model for the DNA molecule using an extension of the Peyrard and Bishop model. In the present model, there are two chains of oscillators linked by a Morse potential, which represent the hydrogen bonds. The rotational and vibrational motions of each base pair are considered and the coupling for these motions are introduced by a nonlinear combination of them in the Morse potential. In this context, thermodynamics and structural properties are discussed.
摘要
我们使用佩拉尔和毕晓普模型的扩展来研究DNA分子的力学模型。在当前模型中，有两条由莫尔斯势连接的振子链，它们代表氢键。考虑了每个碱基对的旋转和振动运动，并通过莫尔斯势中它们的非线性组合引入了这些运动的耦合。在此背景下，讨论了热力学和结构性质。
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