Competitive and non-competitive interaction of solvent with biopolymers at the helix-coil transition

被引：0
|
作者：
Sh. A. Tonoyan
G. N. Hayrapetyan
A. V. Ivanov
I. V. Baghdyan
A. V. Tsarukyan
机构：
[1] Yerevan State University,
[2] Yerevan State Medical University,undefined
来源：
Journal of Contemporary Physics (Armenian Academy of Sciences) | 2009年 / 44卷
关键词：
helix-coil transition; solvent; biopolymer; helicity; correlation length; 87.14.Gg;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
On the basis of generalized model of polypeptide chain (GMPC) as a microscopic theory of the helix-coil transition applicable to both polypeptides and DNA, the Hamiltonian of the model of solvent, which interacts with a biopolymer in both competitive and non-competitive ways, is introduced. It is shown that the partition function of this model is reduced to multipliers to the model without solvent. In this case thermal and entropic parameters of the theory are redefined. Based on calculation of the helicity degree and correlation length different cases of relation between parameters of competitive and non-competitive interaction are discussed.
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页码：300 / 306
页数：6
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