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Human CLASP1 is an outer kinetochore component that regulates spindle microtubu...

One of the most intriguing aspects of mitosis is the ability of kinetochores to hold onto the plus-ends of dynamic microtubules that are actively gaining or losing tubulin subunits. Here we show that the microtubule-associated protein CLASP1 is localized preferentially near the plus-ends of growing microtubules during spindle formation and is also a component of a novel region that we term the outer kinetochore...