Movement of kinesin and dynein is oppositional on the same binding sites of microtubules. They assist in alternately transporting an inactive form of the opposing protein back to its active end.
Mizuno N, Toba S, Edamatsu M, Watai-Nishii J, Hirokawa N, Toyoshima YY, Kikkawa M. 2004. Dynein and kinesin share an overlapping microtubule-binding site. The EMBO Journal 23(13): 2459-2467.