Satellite RNA guides kinetochore assembly
نویسندگان
چکیده
منابع مشابه
Chromatin Assembly: The Kinetochore Connection
An unexpected new role for the chromatin assembly factor CAF-1 and the histone-regulating Hir proteins has been discovered in budding yeast. Both protein complexes are required together for building functional kinetochores.
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Chromosome segregation requires centromeres on every sister chromatid to correctly form and attach the microtubule spindle during cell division. Even though centromeres are essential for genome stability, the underlying centromeric DNA is highly variable in sequence and evolves quickly. Epigenetic mechanisms are therefore thought to regulate centromeres. Here, we show that the 359-bp repeat sat...
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The spindle assembly checkpoint (SAC) monitors the attachment of microtubules to the kinetochore and inhibits anaphase when microtubule binding is incomplete. The SAC might also respond to tension; however, how cells can sense tension and whether its detection is important to satisfy the SAC remain controversial. We generated a HeLa cell line in which two components of the kinetochore, centrome...
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Budding yeast Sgt1 is required for kinetochore assembly, and its homologues have a role in cAMP signalling in fungi and pathogen resistance in plants. The function of mammalian Sgt1 is unknown. We report that RNA interference-mediated depletion of Sgt1 from HeLa cells causes dramatic alterations of the mitotic spindle and problems in chromosome alignment. Cells lacking Sgt1 undergo a mitotic de...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2014
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.2073iti1