Kinetochore localization of murine Bub1 is required for normal mitotic timing and checkpoint response to spindle damage.

Abstract excerpt

The mitotic checkpoint ensures proper chromosome segregation by delaying anaphase until chromosomes are aligned on the spindle. Following prolonged spindle damage, however, cells eventually exit mitosis and undergo apoptosis. We show here that a murine homolog of the yeast mitotic checkpoint gene BUB1 localizes to the kinetochore during mitosis. By expressing a dominant-negative mutant, we show that mBub1 is not...

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