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This article is part of the supplement: Epigenetics and Chromatin: Interactions and processes

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Kinetic control of nucleosome displacement by ISWI/ACF chromatin remodelers

Ana-Maria Florescu12, Helmut Schiessel3 and Ralf Blossey2*

  • * Corresponding author: Ralf Blossey

Author Affiliations

1 Max-Planck-Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, D-01187 Dresden, Germany

2 Interdisciplinary Research Institute, Université des Sciences et des Technologies de Lille (USTL), CNRS USR 3078,50, Avenue Halley, 59568 Villeneuve d’Ascq, France

3 Lorentz Institut voor de theoretische natuurkunde, Universiteit Leiden, P.O. Box 9506, NL-2300 RA Leiden, The Netherlands

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Epigenetics & Chromatin 2013, 6(Suppl 1):P7  doi:10.1186/1756-8935-6-S1-P7

The electronic version of this article is the complete one and can be found online at:

Published:18 March 2013

© 2013 Florescu et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Poster presentation

Chromatin structure is dynamically organized by chromatin remodelers, motor protein complexes which move and remove nucleosomes. The regulation of remodeler action has recently been proposed to underlie a kinetic proofreading scheme which combines the recognition of histone-tail states and the ATP-dependent loosening of DNA around nucleosomes. Members of the ISWI-family of remodelers additionally recognize linker length between nucleosomes. Here, we show that the additional proofreading step involving linker length alone is sufficient to promote the formation of regular arrays of nucleosomes. ATP-dependent remodeling by bidirectional motors is shown to reinforce positioning as compared to statistical positioning.