Preparation and Polymerization of Tubulin of Ginkgo Biloba and its Interaction with Rice Plant Kinesin

Abstract

Previously, we have expressed novel rice plant specific kinesins and studied their biochemical characterization. The plant kinesins showed very unique properties. Especially ATPase activities of the kinesins were relatively much lower than that of conventional kinesin. Moreover, the kinesins did not show motile activity on the microtubules prepared from porcine brain. Although the structure of tubulin is well conserved, it is demonstrated that the plant tubulin has different characteristics from tubulin derived from animal.