Authors
Haijun Zhou, Yang Zhang, Zhong-Can Ou-Yang
Publication date
1999/5/31
Journal
Physical Review Letters
Volume
82
Issue
22
Pages
4560-4563
Publisher
American Physical Society
Description
An elastic model for double-stranded polymers is constructed to study the recently observed DNA entropic elasticity, cooperative extensibility, and supercoiling property. With the introduction of a new structural parameter (the folding angle ϕ), bending deformations of sugar-phosphate backbones, steric effects of nucleotide base pairs, and base-stacking interactions are considered. The comprehensive agreements between theory and experiments both on torsionally relaxed DNA and on negatively supercoiled DNA strongly indicate that base-stacking interactions, although short-ranged in nature, dominate the elasticity of DNA and, hence, are of vital biological significance.
Total citations
Scholar articles
Z Haijun, Z Yang, OY Zhong-Can - Physical review letters, 1999
HJ Zhou, Y Zhang - Phys. Rev. Lett, 1999
Z Haijun, OY Zhong-can - arXiv preprint cond-mat/9810132, 1998