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Elastic theories of single DNA molecules
Zhou, H; Zhang, Y; Ou-Yang, ZC; Ou-Yang, ZC , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2002
发表期刊PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
ISSN0378-4371
卷号306期号:40912页码:359-367
摘要We study the elastic responses of double- (ds) and single-stranded (ss) DNA at external force fields. A double-strand-polymer elastic model is constructed and solved by path integral methods and Monte Carlo simulations to understand dsDNA entropic elasticity, cooperative extensibility, and supercoiling property. The good agreement with experiments indicates that short-ranged base-pair stacking interaction is crucial for the stability and the high deformability of dsDNA. Hairpin-coil transition in ssDNA is studied with generating function method. A threshold force is needed to pull the ssDNA hairpin patterns, stabilised by base pairing and base-pair stacking, into random coils. This phase transition is predicted to be of first order for stacking potential higher than some critical level, in accordance with observations. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Max Planck Inst Colloids & Interfaces, D-14476 Golm, Germany; Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
关键词Double-stranded Dna Supercoiled Dna Double-helix Polymerase Mechanics
学科领域Physics
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收录类别SCI
WOS记录号WOS:000175781700038
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13553
专题理论物理所SCI论文
通讯作者Ou-Yang, ZC , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Zhou, H,Zhang, Y,Ou-Yang, ZC,et al. Elastic theories of single DNA molecules[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2002,306(40912):359-367.
APA Zhou, H,Zhang, Y,Ou-Yang, ZC,&Ou-Yang, ZC , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2002).Elastic theories of single DNA molecules.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,306(40912),359-367.
MLA Zhou, H,et al."Elastic theories of single DNA molecules".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 306.40912(2002):359-367.
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