Effects of stacking on the configurations and elasticity of single-stranded nucleic acids

被引:36
作者
Buhot, A [1 ]
Halperin, A [1 ]
机构
[1] CEA Grenoble, UJF, CNRS, UMR 5819, F-38054 Grenoble 9, France
来源
PHYSICAL REVIEW E | 2004年 / 70卷 / 02期
关键词
D O I
10.1103/PhysRevE.70.020902
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
Stacking interactions in single-stranded nucleic acids give rise to configurations of an annealed rod-coil multiblock copolymer. Theoretical analysis identifies the following resulting signatures for long homopolynucleotides: a nonmonotonic dependence of size on temperature, the corresponding effects on cyclization and a plateau in the extension force law. Explicit numerical results for polydeoxyadenylate [poly(dA)] and polyriboadenylate [poly(rU)] are presented.
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页数:4
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