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Temporal Control of Epigenetic Centromere Specification

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Journal Chromosome Res
Date 2012 Jun 29
PMID 22740047
Citations 7
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Abstract

All living organisms require accurate mechanisms to faithfully inherit their genetic material during cell division. The centromere is a unique locus on each chromosome that supports a multiprotein structure called the kinetochore. During mitosis, the kinetochore is responsible for connecting chromosomes to spindle microtubules, allowing faithful segregation of the duplicated genome. In most organisms, centromere position and function is not defined by the local DNA sequence context but rather by an epigenetic chromatin-based mechanism. Centromere protein A (CENP-A) is central to this process, as chromatin assembled from this histone H3 variant is essential for assembly of the centromere complex, as well as for its epigenetic maintenance. As a major determinant of centromere function, CENP-A assembly requires tight control, both in its specificity for the centromere and in timing of assembly. In the last few years, there have been several new insights into the molecular mechanism that allow this process to occur. We will review these here and discuss the general implications of the mechanism of cell cycle coupling of centromere inheritance.

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References
1.
Silva M, Jansen L . At the right place at the right time: novel CENP-A binding proteins shed light on centromere assembly. Chromosoma. 2009; 118(5):567-74. DOI: 10.1007/s00412-009-0227-3. View

2.
Hori T, Amano M, Suzuki A, Backer C, Welburn J, Dong Y . CCAN makes multiple contacts with centromeric DNA to provide distinct pathways to the outer kinetochore. Cell. 2008; 135(6):1039-52. DOI: 10.1016/j.cell.2008.10.019. View

3.
Lagana A, Dorn J, De Rop V, Ladouceur A, Maddox A, Maddox P . A small GTPase molecular switch regulates epigenetic centromere maintenance by stabilizing newly incorporated CENP-A. Nat Cell Biol. 2010; 12(12):1186-93. DOI: 10.1038/ncb2129. View

4.
Harrington J, Van Bokkelen G, Mays R, Gustashaw K, Willard H . Formation of de novo centromeres and construction of first-generation human artificial microchromosomes. Nat Genet. 1997; 15(4):345-55. DOI: 10.1038/ng0497-345. View

5.
Prendergast L, van Vuuren C, Kaczmarczyk A, Doering V, Hellwig D, Quinn N . Premitotic assembly of human CENPs -T and -W switches centromeric chromatin to a mitotic state. PLoS Biol. 2011; 9(6):e1001082. PMC: 3114758. DOI: 10.1371/journal.pbio.1001082. View