STRUCTURE IN THE ELECTRIC-POTENTIAL EMANATING FROM DNA

被引：15

作者：

EDWARDS, G

HOCHBERG, D

KEPHART, TW

机构：

[1] Department of Physics and Astronomy, Vanderbilt University, Nashville

来源：

PHYSICAL REVIEW E | 1994年 / 50卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.50.R698

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：

We present an analytical model, based on a Green-function technique, for the electric potential surrounding dissolved DNA which treats the full, discrete charge distribution of homopolymer B-DNA and the aqueous solvent as concentric, dielectric cylinders. The resulting expressions manifest the symmetry of the system, with terms equivalent to a continuous line charge and with distinctive helical terms both due to the sugar-phosphate backbone and due to the base pairs. This theoretical approach quantifies the structural information in the potential with continuing approach to the DNA surface.

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页码：R698 / R701

页数：4

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