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Zhang, LY; Sun, H; Lin, JT; Zhang, LY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Stretching vibration influence of the hydrogen bond on a localized excitation and thermodynamic properties of DNA double helices
发表期刊PHYSICS LETTERS A
关键词Breather Trapping Mechanism Dimensional Atomic Chain Solitary Excitations Temperature Solitons Model Dynamics Superconductivity Denaturation Proteins
摘要The propagation of a localized excitation and the thermodynamic properties in DNA double helices due to stretching vibration of hydrogen bond are discussed. The stretch of the hydrogen bonds is considered as a nonlinear chain with cubic and quartic potential. The analytic solution of the solitary wave is obtained by using the continuum approximation and its stability has been discussed. With the help of the thermodynamic Green function technique, the temperature and anharmonicity effects on the thermodynamic properties of DNA are investigated. The theoretical calculation of the specific heat in DNA at low temperature is consistent with the experimental result. The numerical simulation of the differential-difference equation shows that the solitary wave is pinned by the lattice. It is also pointed out that the conformational transitions from B-DNA to A-DNA can occur in the case of asymmetry potential with quartic term. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
1999
ISSN0375-9601
卷号259期号:1页码:71-79
学科领域Physics
收录类别SCI
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13103
专题理论物理所科研产出_SCI论文
通讯作者Zhang, LY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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Zhang, LY,Sun, H,Lin, JT,et al. Stretching vibration influence of the hydrogen bond on a localized excitation and thermodynamic properties of DNA double helices[J]. PHYSICS LETTERS A,1999,259(1):71-79.
APA Zhang, LY,Sun, H,Lin, JT,&Zhang, LY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(1999).Stretching vibration influence of the hydrogen bond on a localized excitation and thermodynamic properties of DNA double helices.PHYSICS LETTERS A,259(1),71-79.
MLA Zhang, LY,et al."Stretching vibration influence of the hydrogen bond on a localized excitation and thermodynamic properties of DNA double helices".PHYSICS LETTERS A 259.1(1999):71-79.
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