Abstract
ABSTRACTThe kinetochore is a large protein complex that ensures accurate chromosome segregation during mitosis by connecting the centromere and spindle microtubules. One of the kinetochore sub-complexes, the constitutive centromere-associated network (CCAN), associates with the centromere and recruits another sub-complex, the KMN (KNL1, Mis12, and Ndc80 complexes) network (KMN), which binds to spindle microtubules. The CCAN-KMN interaction is mediated by two parallel pathways (CENP-C- and CENP-T-pathways) in the kinetochore, which bridge the centromere and microtubules. Here, we discuss dynamic protein-interaction changes in the two pathways that couple the centromere with spindle microtubules during mitotic progression.
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