Intracellular transport of cargoes, such as vesicles or organelles, is carried out by molecular motor proteins that track on polarized microtubules. This protocol describes the correlation of the directionality of transport of individual cargo particles moving inside neurons, to the relative amount and type of associated motor proteins.
Neumann, S., Campbell, G. E., Szpankowski, L., Goldstein, L. S., Encalada, S. E. Characterizing the Composition of Molecular Motors on Moving Axonal Cargo Using "Cargo Mapping" Analysis. J. Vis. Exp. (92), e52029, doi:10.3791/52029 (2014).