ICCAS OpenIR
A study on conformations of DNA chain under the elastic rod model
Jiang, ZT; Zhang, LX; Chen, J; Xia, AG; Ye, GX; Zhao, DL
2003-04-01
Source PublicationACTA POLYMERICA SINICA
ISSN1000-3304
Issue2Pages:207-210
AbstractThe 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.
KeywordElastic Rod Model Monte Carlo Simulation Dna Chain
Indexed BySCI
Language英语
WOS IDWOS:000189315400010
PublisherSCIENCE CHINA PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81270
Collection中国科学院化学研究所
Corresponding AuthorJiang, ZT
Affiliation1.Zhejiang Univ, Dept Phys, Hangzhou 310028, Peoples R China
2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
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.
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