The influence of the heat bath and structural disorder in protein molecules on soliton transported bio-energy in an improved model

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	The influence of the heat bath and structural disorder in protein molecules on soliton transported bio-energy in an improved model
	X. F. Pang; H. W. Zhang; Y. H. Luo
	2006
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	18 期号:2 页码:613-627
摘要	Temperature and structural disorder can have a strong influence on the stability of solitons excited in protein molecules. This problem has been studied in depth with an improved model, using numerical simulation and the Runge-Kutta method, for biological temperatures. The results obtained show that the soliton is thermally stable in the region of biological temperatures, 300 K < T < 320 K, and is very robust against structural disorder, including substantial disorder in the sequence of masses of the amino acids and fluctuations of the spring constant, coupling constant, dipole-dipole interaction constant and ground state energy, due to its larger binding energy which can suppress the destructive effect of the above types of disorder and thermal perturbation. Therefore this soliton is a possible carrier for bio-energy transport in protein molecules. However, very strong structural disorder can also destroy the stability of this soliton.
部门归属	univ elect sci & technol china, inst life sci & technol, chengdu 610065, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. univ elect sci & technol china, sch microelect & solid state elect, chengdu 610054, peoples r china.;pang, xf (reprint author), univ elect sci & technol china, inst life sci & technol, chengdu 610065, peoples r china
关键词	Hydrogen-bonded Systems Davydov-like Solitons Proton-transfer Thermodynamic Properties Finite-temperature Helical Proteins Vibron Solitons Living Systems Polaron Band Quantum
URL	查看原文
WOS记录号	WOS:000235044800018
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34423
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. F. Pang,H. W. Zhang,Y. H. Luo. The influence of the heat bath and structural disorder in protein molecules on soliton transported bio-energy in an improved model[J]. Journal of Physics-Condensed Matter,2006,18(2):613-627.
APA	X. F. Pang,H. W. Zhang,&Y. H. Luo.(2006).The influence of the heat bath and structural disorder in protein molecules on soliton transported bio-energy in an improved model.Journal of Physics-Condensed Matter,18(2),613-627.
MLA	X. F. Pang,et al."The influence of the heat bath and structural disorder in protein molecules on soliton transported bio-energy in an improved model".Journal of Physics-Condensed Matter 18.2(2006):613-627.