Point centromeres contain more than a single centromere-specific Cse4 (CENP-A) nucleosome
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چکیده
منابع مشابه
Point centromeres contain more than a single centromere-specific Cse4 (CENP-A) nucleosome
Cse4 is the budding yeast homologue of CENP-A, a modified histone H3 that specifies the base of kinetochores in all eukaryotes. Budding yeast is unique in having only one kinetochore microtubule attachment site per centromere. The centromere is specified by CEN DNA, a sequence-specific binding complex (CBF3), and a Cse4-containing nucleosome. Here we compare the ratio of kinetochore proximal Cs...
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Histone CENP-A-containing nucleosomes play an important role in nucleating kinetochores at centromeres for chromosome segregation. However, the molecular mechanisms by which CENP-A nucleosomes engage with kinetochore proteins are not well understood. Here, we report the finding of a new function for the budding yeast Cse4/CENP-A histone-fold domain interacting with inner kinetochore protein Mif...
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Kinetochores are the specialized protein structures that form on centromeric DNA and direct chromosome segregation. It is critical that all chromosomes assemble a single kinetochore every cell cycle. One hallmark of all eukaryotic kinetochores is CENP-A, an essential centromeric histone H3 (CenH3) variant. Overexpression of CENP-A causes mislocalization to euchromatin, which could lead to delet...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2011
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.201106036