Abstract:that CENP-E plays an important mitotic role at the kinetochore-associated microtubule tips. To determine the molecular mechanism of CENP-E tip-tracking, we characterized two purified recombinant fragments of CENP-E: one containing the motor and neck domains and the second with the dimeric C-terminal tails. The motor-containing truncated protein walked on the microtubule wall in essentially the same manner as the full length CENP-E, while the C-terminal tail exhibited rapid diffusion. Neither of these fragments… Show more
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