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arXiv · 1502.00343

Protein viscoelastic dynamics: a model system

Craig Fogle·Joseph Rudnick·David Jasnow
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Abstract

A model system inspired by recent experiments on the dynamics of a folded protein under the influence of a sinusoidal force is investigated and found to replicate many of the response characteristics of such a system. The essence of the model is a strongly over-damped oscillator described by a harmonic restoring force for small displacements that reversibly yields to stress under sufficiently large displacement. This simple dynamical system also reveals unexpectedly rich behavior, exhibiting a series of dynamical transitions and analogies with equilibrium thermodynamic phase transitions. The effects of noise and of inertia are briefly considered and described.

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Craig Fogle, Joseph Rudnick, David Jasnow. 2015-02-02. Protein viscoelastic dynamics: a model system. https://doi.org/10.1103/physreve.92.032719

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