Centromeres: unique chromatin structures that drive chromosome segregation.

Centromeres: unique chromatin structures that drive chromosome segregation.
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DOI:
10.1038/nrm3107
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发表时间:
2011-05
期刊:
Nature reviews. Molecular cell biology
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其他
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Fidelity during chromosome segregation is essential to prevent aneuploidy. The proteins and chromatin at the centromere form a unique site for kinetochore attachment and allow the cell to sense and correct errors during chromosome segregation. Centromeric chromatin is characterized by distinct chromatin organization, epigenetics, centromere-associated proteins and histone variants. These include the histone H3 variant centromeric protein A (CENPA), the composition and deposition of which have been widely investigated. Studies have examined the structural and biophysical properties of the centromere and have suggested that the centromere is not simply a ‘landing pad’ for kinetochore formation, but has an essential role in mitosis by assembling and directing the organization of the kinetochore.
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