A Master equation approach to modeling an artificial protein motor

Details A Master equation approach to modeling an artificial protein motor A Master equation approach to modeling an artificial protein motor

2010-04-07

arxiv.org/abs/1004.1114v1

Physics

Condensed Matter

Statistical Mechanics

Submitted to Chemical Physics; 9 pages, 7 figures

Scientific paper

Linear bio-molecular motors move unidirectionally along a track by coordinating several different processes, such as fuel (ATP) capture, hydrolysis, conformational changes, binding and unbinding from a track, and center-of-mass diffusion. A better understanding of the interdependencies between these processes, which take place over a wide range of different time scales, would help elucidate the general operational principles of molecular motors. Artificial molecular motors present a unique opportunity for such a study because motor structure and function are a priori known. Here we describe use of a Master equation approach, integrated with input from Langevin and molecular dynamics modeling, to stochastically model a molecular motor across many time scales. We apply this approach to a specific concept for an artificial protein motor, the Tumbleweed.

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