Aurora B kinases restrict chromosome decondensation to telophase of mitosis
نویسندگان
چکیده
منابع مشابه
RUVs drive chromosome decondensation after mitosis.
Condensation of chromosomes during mitosis is required for their segregation into daughter cells but must be reversed to allow for postmitotic functions. In this issue of Developmental Cell, Magalska et al. (2014) show that the ATPases RuvBL1/2 drive postmitotic chromatin decondensation, demonstrating that this is an active process.
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Aurora kinases, which have been implicated in several vital events in mitosis, represent a protein kinase family highly conserved during evolution. The activity of Aurora kinases is delicately regulated, mainly by phosphorylation and degradation. Deregulation of Aurora kinase activity can result in mitotic abnormality and genetic instability, leading to defects in centrosome function, spindle a...
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Aurora kinases are highly conserved proteins with important roles in mitosis. Metazoans contain two kinases, Aurora A and B, which contribute distinct functions at the spindle poles and the equatorial region respectively. It is not currently known whether the specialized functions of the two kinases arose after their duplication in animal cells or were already present in their ancestral kinase....
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Two new studies show that phosphorylation by Aurora B kinase controls the centromere localization and catalytic activity of the microtubule depolymerase MCAK. Physical tension from microtubule attachment may influence access of MCAK to Aurora B kinase and its opposing phosphatases.
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The chromosomal protein passenger complex, a key mitotic regulator, consists of at least four proteins, INCENP, Aurora B, Survivin and Borealin. Survivin, in contrast to the other members of the chromosomal protein passenger complex (CPC), is mobile at metaphase. This protein is also phosphorylated by Aurora B at Threonine 117. In this work we have studied the role of the phosphorylation of Sur...
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ژورنال
عنوان ژورنال: Cell Cycle
سال: 2008
ISSN: 1538-4101,1551-4005
DOI: 10.4161/cc.7.3.5381