Literature DB >> 460401

Statistical mechanics of supercoils and the torsional stiffness of the DNA double helix.

A V Vologodskii, V V Anshelevich, A V Lukashin, M D Frank-Kamenetskii.   

Abstract

The distribution of closed unknotted polymer chains over the writhing number is calculated by the Monte-Carlo method. For circular duplex DNA the variance of the distribution equals approximately half the observed variance of equilibrium distribution over the linking number. The balance which arises from fluctuations in DNA twisting makes it possible to estimate the torsional stiffness of the double helix.

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Year:  1979        PMID: 460401     DOI: 10.1038/280294a0

Source DB:  PubMed          Journal:  Nature        ISSN: 0028-0836            Impact factor:   49.962


  28 in total

1.  Electrostatic-undulatory theory of plectonemically supercoiled DNA.

Authors:  J Ubbink; T Odijk
Journal:  Biophys J       Date:  1999-05       Impact factor: 4.033

2.  Equilibrium distributions of topological states in circular DNA: interplay of supercoiling and knotting.

Authors:  A A Podtelezhnikov; N R Cozzarelli; A V Vologodskii
Journal:  Proc Natl Acad Sci U S A       Date:  1999-11-09       Impact factor: 11.205

3.  Statistical-mechanical theory of DNA looping.

Authors:  Yongli Zhang; Abbye E McEwen; Donald M Crothers; Stephen D Levene
Journal:  Biophys J       Date:  2005-12-16       Impact factor: 4.033

4.  Random state transitions of knots: a first step towards modeling unknotting by type II topoisomerases.

Authors:  Xia Hua; Diana Nguyen; Barath Raghavan; Javier Arsuaga; Mariel Vazquez
Journal:  Topol Appl       Date:  2007-04-01       Impact factor: 0.617

5.  The influence of salt on the structure and energetics of supercoiled DNA.

Authors:  T Schlick; B Li; W K Olson
Journal:  Biophys J       Date:  1994-12       Impact factor: 4.033

Review 6.  Exploiting circular DNA.

Authors:  A Vologodskii
Journal:  Proc Natl Acad Sci U S A       Date:  1998-04-14       Impact factor: 11.205

7.  New measurements of DNA twist elasticity.

Authors:  P Nelson
Journal:  Biophys J       Date:  1998-05       Impact factor: 4.033

8.  Extension of torsionally stressed DNA by external force.

Authors:  A V Vologodskii; J F Marko
Journal:  Biophys J       Date:  1997-07       Impact factor: 4.033

9.  Bridging chromatin structure and function over a range of experimental spatial and temporal scales by molecular modeling.

Authors:  Stephanie Portillo-Ledesma; Tamar Schlick
Journal:  Wiley Interdiscip Rev Comput Mol Sci       Date:  2019-08-06

10.  Temperature dependence of DNA persistence length.

Authors:  Stephanie Geggier; Alexander Kotlyar; Alexander Vologodskii
Journal:  Nucleic Acids Res       Date:  2010-10-15       Impact factor: 16.971

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