Force-velocity relations for multiple-molecular-motor transport
arXiv:0906.4861 · doi:10.1103/PhysRevE.80.041923
Abstract
A transition rate model of cargo transport by molecular motors is proposed. Under the assumption of steady state, the force-velocity curve of multi-motor system can be derived from the force-velocity curve of single motor. Our work shows, in the case of low load, the velocity of multi-motor system can decrease or increase with increasing motor number, which is dependent on the single motor force-velocity curve. And most commonly, the velocity decreases. This gives a possible explanation to some recent
5 pages, 3 figures, accepted for publication in Phys. Rev. E