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Kink instability in circular DNA studied as Helfrich chiral chains
Zhao, W; Zhou, HJ; Ou-Yang, ZC; Zhao, W , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
1998
发表期刊PHYSICAL REVIEW E
ISSN1063-651X
卷号58期号:6页码:8040-8043
摘要The mechanism of kink instability observed in short DNA circles [W. Han et al., Nature (London) 386, 563 (1997)] has been analyzed based on the model of chiral elasticity for helical fibers proposed by Helfrich [Langmuir 7, 567 (1991)]. It is shown theoretically that the circle is the planar solution of the equilibrium shape equations derived within this model and its stability is studied as the function of the elastic moduli of DNA. It is found that above some thresholds of the chiral modulus, k(3), the circular DNA can be deformed into elliptical, triangular, square, or other polygonal shapes. The predicted shape transformation is found in good agreement with the above kink instability observed in DNA. [S1063-651X(98)03412-6].
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
关键词Supercoiled Dna Elastic Model Torsional Rigidity Linear Dna Closed Dna Molecules
学科领域Physics
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收录类别SCI
WOS记录号WOS:000077541900080
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12225
专题理论物理所1978-2010年知识产出
通讯作者Zhao, W , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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GB/T 7714
Zhao, W,Zhou, HJ,Ou-Yang, ZC,et al. Kink instability in circular DNA studied as Helfrich chiral chains[J]. PHYSICAL REVIEW E,1998,58(6):8040-8043.
APA Zhao, W,Zhou, HJ,Ou-Yang, ZC,&Zhao, W , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1998).Kink instability in circular DNA studied as Helfrich chiral chains.PHYSICAL REVIEW E,58(6),8040-8043.
MLA Zhao, W,et al."Kink instability in circular DNA studied as Helfrich chiral chains".PHYSICAL REVIEW E 58.6(1998):8040-8043.
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