Ct

Kinesin receptor

Kinesin -

Kinesin receptor

Kinesin -

Microtubule stationary

Microtubule stationary

▲ FIGURE 20-21 Model of kinesin-catalyzed vesicle transport. Kinesin molecules, attached to unidentified receptors on the vesicle surface, transport the vesicles from the (—) end to the (+)

end of a stationary microtubule. ATP is required for movement. [Adapted from R. D. Vale et al., 1985, Cell 40:559; and T Schroer et al., 1988, J. Cell Biol. 107:1785.]

TABLE 20-2 Functional Classes of Microtubule Motor Proteins

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