Chapter title |
Critical Foundation of the Kinetochore: The Constitutive Centromere-Associated Network (CCAN)
|
---|---|
Chapter number | 2 |
Book title |
Progress in Molecular and Subcellular Biology
|
Published in |
Progress in molecular and subcellular biology, August 2017
|
DOI | 10.1007/978-3-319-58592-5_2 |
Pubmed ID | |
Book ISBNs |
978-3-31-958591-8, 978-3-31-958592-5
|
Authors |
Hara, Masatoshi, Fukagawa, Tatsuo, Masatoshi Hara, Tatsuo Fukagawa |
Abstract |
The kinetochore is a large protein complex, which is assembled at the centromere of a chromosome to ensure faithful chromosome segregation during M-phase. The centromere in most eukaryotes is epigenetically specified by DNA sequence-independent mechanisms. The constitutive centromere-associated network (CCAN) is a subcomplex in the kinetochore that localizes to the centromere throughout the cell cycle. The CCAN has interfaces bound to the centromeric chromatin and the spindle microtubule-binding complex; therefore, it functions as a foundation of kinetochore formation. Here, we summarize recent progress in our understanding of the structure and organization of the CCAN. We also discuss an additional role of the CCAN in the maintenance of centromere position and dynamic reorganization of the CCAN. |
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