The motor protein kinesin-1 plays an essential role in transporting cellular cargoes within eukaryotic cells. A group of kinesins ``walking' together can cooperatively transport various cellular cargo over relatively long distances. While much is known about the transport by individual kinesin-1 molecules, very little is known about the specific mechanisms of cooperative kinesin-based transport. Here, we developed a two-dimensional stochastic model of cargo transport via multiple kinesins. The simulation focuses on the modeling of quantum dot cargoes transported along a microtubule. We found that high motor densities lead to increased run lengths, increased association times and decreased velocities, and that our stochastic model recapitulates experimental data reasonably well.
Worcester Polytechnic Institute
Major Qualifying Project
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