A study on conformations of DNA chain under the elastic rod model

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	A study on conformations of DNA chain under the elastic rod model
	Jiang, ZT ; Zhang, LX ; Chen, J ; Xia, AG ; Ye, GX ; Zhao, DL
刊名	ACTA POLYMERICA SINICA
	2003-04-01
期号	2 页码:207-210
关键词	Elastic Rod Model Monte Carlo Simulation Dna Chain
ISSN号	1000-3304
英文摘要	The conformations of DNA chains are studied under the elastic rod model by Metropolis Monte Carlo simulation. The energy of DNA chains includes the bending energy E-B, and the twisting energy E-T, and they can be expressed in the form of E-B(r) = A/2 integral(0)(L) kappa(2)ds and E-T (r) = 2pi(2) C/L (DeltaLk - Wr)(2). The energy decreases with increasing the chain length of DNA. We find that E,, is greater than E, by 10 _ 102 times. In the same time, the relationship between and chain length n is = 1169.5 - 3.5 x n + 0.025 x n(2). The equation of Lk = Wr + Tw is verified, and the values of Lk and Wr are found to be very close to each other. It shows that DNA chain is easier to be bent than to be twisted. But for the large value of Lk, the tendency of torsion becomes large. Our simulation can provide a new method to analyze the conformations of DNA chains.
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000189315400010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/81269]
专题	中国科学院化学研究所
通讯作者	Jiang, ZT
作者单位	1.Zhejiang Univ, Dept Phys, Hangzhou 310028, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Jiang, ZT,Zhang, LX,Chen, J,et al. A study on conformations of DNA chain under the elastic rod model[J]. ACTA POLYMERICA SINICA,2003(2):207-210.
APA	Jiang, ZT,Zhang, LX,Chen, J,Xia, AG,Ye, GX,&Zhao, DL.(2003).A study on conformations of DNA chain under the elastic rod model.ACTA POLYMERICA SINICA(2),207-210.
MLA	Jiang, ZT,et al."A study on conformations of DNA chain under the elastic rod model".ACTA POLYMERICA SINICA .2(2003):207-210.