In the model depicted above, XKCM1 is shown bound to the kinetochore and translocating toward the plus end of a microtubule, away from the spindle pole and toward the kinetochore. At the end of the microtubule, XKCM1 triggers a catastrophe, causing depolymerization of the microtubule and movement of the motor back toward the pole. CENP-E in this model is shown coupling chromosome movement to the destabilized microtubules. See related paper by Walczak, C.E., Mitchison, T.J. and Desai, A. (1996) Cell 84:37-47. Diagram contributed by Claire Walczak.
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Created 7 July 1996 20:00 GMT
Modified 13 May 2007 20:57 GMT