Affiliation:
1. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA.
Abstract
The helix is a ubiquitous motif for biopolymers. We propose a heuristic, entropically based model that predicts helix formation in a system of hard spheres and semiflexible tubes. We find that the entropy of the spheres is maximized when short stretches of the tube form a helix with a geometry close to that found in natural helices. Our model could be directly tested with wormlike micelles as the tubes, and the effect could be used to self-assemble supramolecular helices.
Publisher
American Association for the Advancement of Science (AAAS)
Reference10 articles.
1. A. Maritan, C. Micheletti, A. Trovato, J. R. Banavar, Nature406, 287 (2000).
2. K. F. Lau, K. A. Dill, Macromolecules22, 3986 (1989).
3. S. H. Gellman, Acc. Chem. Res.31, 173 (1998).
4. S. Asakura, F. Oosawa, J. Chem. Phys.22, 1255 (1954).
5. J. R. Banavar, A. Maritan, Rev. Mod. Phys.75, 23 (2003).
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