Bending affects entropy of semiflexible polymers: Application to protein-DNA complexes

Shay M. Rappaport; Yitzhak Rabin

doi:10.1103/physreve.80.052801

Bending affects entropy of semiflexible polymers: Application to protein-DNA complexes

Shay M. Rappaport
, Yitzhak Rabin

Department of Physics - at Bar-Ilan University

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

We discuss a class of generalized wormlike chain models of polymers with spontaneous curvature and show that the density of states and consequently the entropy of such natively bent polymers are higher than that of straight ones. This effect changes the classical Langmuir binding isotherm by giving rise to enhanced binding of DNA-bending proteins.

Original language	English
Article number	052801
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	80
Issue number	5
DOIs	https://doi.org/10.1103/physreve.80.052801
State	Published - 12 Nov 2009

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10.1103/physreve.80.052801

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AB - We discuss a class of generalized wormlike chain models of polymers with spontaneous curvature and show that the density of states and consequently the entropy of such natively bent polymers are higher than that of straight ones. This effect changes the classical Langmuir binding isotherm by giving rise to enhanced binding of DNA-bending proteins.

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Bending affects entropy of semiflexible polymers: Application to protein-DNA complexes

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