A general two-cycle network model of molecular motors

Details A general two-cycle network model of molecular motors A general two-cycle network model of molecular motors

2009-02-19

arxiv.org/abs/0902.3301v2

Physica A 388 (2009) 3465-3474

Physics

Biological Physics

Scientific paper

10.1016/j.physa.2009.04.039

Molecular motors are single macromolecules that generate forces at the piconewton range and nanometer scale. They convert chemical energy into mechanical work by moving along filamentous structures. In this paper, we study the velocity of two-head molecular motors in the framework of a mechanochemical network theory. The network model, a generalization of the recently work of Liepelt and Lipowsky (PRL 98, 258102 (2007)), is based on the discrete mechanochemical states of a molecular motor with multiple cycles. By generalizing the mathematical method developed by Fisher and Kolomeisky for single cycle motor (PNAS(2001) 98(14) P7748-7753), we are able to obtain an explicit formula for the velocity of a molecular motor.

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