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The elastic theory of a single DNA molecule
Zhou, HJ; Zhang, Y; Ou-Yang, ZC; Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2003
发表期刊PRAMANA-JOURNAL OF PHYSICS
ISSN0304-4289
卷号61期号:2页码:353-360
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 the entropic elasticity, cooperative extensibility, and supercoiling property of dsDNA. 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, stabilized 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 experimental observations.
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 Polymerase Mechanics
学科领域Physics
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收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13254
专题理论物理所1978-2010年知识产出
通讯作者Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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GB/T 7714
Zhou, HJ,Zhang, Y,Ou-Yang, ZC,et al. The elastic theory of a single DNA molecule[J]. PRAMANA-JOURNAL OF PHYSICS,2003,61(2):353-360.
APA Zhou, HJ,Zhang, Y,Ou-Yang, ZC,&Zhou, HJ , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2003).The elastic theory of a single DNA molecule.PRAMANA-JOURNAL OF PHYSICS,61(2),353-360.
MLA Zhou, HJ,et al."The elastic theory of a single DNA molecule".PRAMANA-JOURNAL OF PHYSICS 61.2(2003):353-360.
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