The Aurora B gradient sustains kinetochore stability in anaphase.
The Aurora B gradient sustains kinetochore stability in anaphase.
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DOI:
10.1016/j.celrep.2021.109818
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发表时间:
2021-11-09
期刊:
影响因子:
8.8
通讯作者:
Higgins JMG
中科院分区:
文献类型:
--
作者:
Papini D;Levasseur MD;Higgins JMG
Kinetochores assemble on chromosomes in mitosis to allow microtubules to attach and bring about accurate chromosome segregation. The kinases Cyclin B-Cdk1 and Aurora B are crucial for the formation of stable kinetochores. However, the activity of these two kinases appears to decline dramatically at centromeres during anaphase onset, precisely when microtubule attachments are required to move chromosomes toward opposite poles of the dividing cell. We find that, although Aurora B leaves centromeres at anaphase, a gradient of Aurora B activity centered on the central spindle is still able to phosphorylate kinetochore substrates such as Dsn1 to modulate kinetochore stability in anaphase and to regulate kinetochore disassembly as cells enter telophase. We provide a model to explain how Aurora B co-operates with Cyclin B-Cdk1 to maintain kinetochore function in anaphase. Central spindle Aurora B targets kinetochore substrates in anaphase Phosphorylation of Dsn1 by Aurora B stabilizes kinetochores in anaphase Dsn1 phosphorylation modulates chromosome movements in anaphase Kinetochores assemble on chromosomes in mitosis to allow accurate chromosome segregation. Papini et al. find that, although Aurora B leaves centromeres at anaphase, an Aurora B activity gradient centered on the central spindle phosphorylates kinetochore substrates such as Dsn1 to modulate kinetochore stability and chromosome movements in anaphase.
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影响因子:
4.2
作者:
Asbury CL
通讯作者:
Asbury CL
DOI:
10.1083/jcb.201301006
发表时间:
2013-04-01
期刊:
The Journal of cell biology
影响因子:
--
作者:
Gascoigne KE;Cheeseman IM
通讯作者:
Cheeseman IM
DOI:
10.1126/science.1251121
发表时间:
2014-07-18
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Afonso O;Matos I;Pereira AJ;Aguiar P;Lampson MA;Maiato H
通讯作者:
Maiato H
影响因子:
64.8
作者:
Fuller, Brian G.;Lampson, Michael A.;Kapoor, Tarun M.
通讯作者:
Kapoor, Tarun M.
DOI:
10.1083/jcb.201407074
发表时间:
2015-01-19
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kim S;Yu H
通讯作者:
Yu H