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  1. 1 Bohr J.

  2. 1 Oskolkov N.

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A Lennard-Jones-like perspective on first order transitions in biological helices

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Oskolkov N., Bohr J.
Open Physics
|
2013
|
vol. 11
|
issue 3
357-362
EN
Helical structures with Lennard-Jones self-interactions are studied for optimal conformations. For this purpose, their self-energy is analyzed for extrema with respect to the geometric parameters of the helices. It is found that Lennard-Jones helices exhibit a first order phase transition from a state with large curvature of the helical backbone to one with a small curvature. I.e. from a dense helix to an extended helix. A transition from one helical structure to another is a phenomenon known to take place in self-assembling helices formed in multicomponent solutions with cholesterol.
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