Department of Physics Papers

Document Type

Journal Article

Date of this Version

12-2002

Publication Source

Europhysics Letters

Volume

62

Issue

5

Start Page

760

Last Page

766

DOI

10.1209/epl/i2003-00336-3

Abstract

We formulate and solve a two-state model for the elasticity of nicked, double-stranded DNA that borrows features from both the Worm Like Chain and the Bragg-Zimm model. Our model is computationally simple, and gives an excellent fit to recent experimental data through the entire overstretching transition. The fit gives the first value for the bending stiffness of the overstretched state as about 12 nm · kBT, a value quite different from either B-form or single-stranded DNA.

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Date Posted: 15 March 2017

This document has been peer reviewed.