Evaluating changes of writhe in computer simulations of supercoiled DNA

被引：15

作者：

de Vries, R ^{[1
]}

机构：

[1] Wageningen Univ, Lab Phys Chem & Colloid Sci, NL-6700 EK Wageningen, Netherlands

来源：

JOURNAL OF CHEMICAL PHYSICS | 2005年 / 122卷 / 06期

关键词：

D O I：

10.1063/1.1846052

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We compute changes in the writhe of a polygonal space curve when one of the vertices is displaced. The resulting expressions can be used in simulations of supercoiled DNA. For Brownian dynamics simulations, the expressions can be used to eliminate the explicit twisting degree of freedom. For Monte Carlo simulations, they can be used in fast local moves. Preliminary Monte Carlo simulations using only such fast local moves show that these can be used to efficiently simulate small DNA supercoils. (C) 2005 American Institute of Physics.

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页数：5

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