Low tension recruits the yeast Aurora B protein Ipl1 to centromeres in metaphase.
Low tension recruits the yeast Aurora B protein Ipl1 to centromeres in metaphase.
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DOI:
10.1242/jcs.261416
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发表时间:
2023-08-15
影响因子:
4
通讯作者:
中科院分区:
文献类型:
--
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Accurate genome segregation in mitosis requires that all chromosomes are bioriented on the spindle. Cells monitor biorientation by sensing tension across sister centromeres. Chromosomes that are not bioriented have low centromere tension, which allows Aurora B (yeast Ipl1) to perform error correction that locally loosens kinetochore–microtubule attachments to allow detachment of microtubules and fresh attempts at achieving biorientation. However, it is not known whether low tension recruits Aurora B to centromeres or, alternatively, whether low tension directly activates Aurora B already localized at centromeres. In this work, we experimentally induced low tension in metaphase Saccharomyces cerevisiae yeast cells, then monitored Ipl1 localization. We find low tension recruits Ipl1 to centromeres. Furthermore, low tension-induced Ipl1 recruitment depended on Bub1, which is known to provide a binding site for Ipl1. In contrast, Top2, which can also recruit Ipl1 to centromeres, was not required. Our results demonstrate cells are sensitive to low tension at centromeres and respond by actively recruiting Ip1l for error correction. Summary: Yeast Aurora B (Ipl1) is recruited to metaphase centromeres under low tension, dependent on Bub1.
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影响因子:
3.3
作者:
Cairo, Gisela;Greiwe, Cora;Jung, Gyu Ik;Blengini, Cecilia;Schindler, Karen;Lacefield, Soni
通讯作者:
Lacefield, Soni
影响因子:
7.7
作者:
Fischboeck-Halwachs, Josef;Singh, Sylvia;Herzog, Franz
通讯作者:
Herzog, Franz
影响因子:
64.8
作者:
通讯作者:
--
DOI:
10.1083/jcb.200208092
发表时间:
2003-04-28
期刊:
The Journal of cell biology
影响因子:
--
作者:
Hauf S;Cole RW;LaTerra S;Zimmer C;Schnapp G;Walter R;Heckel A;van Meel J;Rieder CL;Peters JM
通讯作者:
Peters JM
DOI:
10.1083/jcb.200404001
发表时间:
2004-07-19
期刊:
The Journal of cell biology
影响因子:
--
作者:
Gassmann R;Carvalho A;Henzing AJ;Ruchaud S;Hudson DF;Honda R;Nigg EA;Gerloff DL;Earnshaw WC
通讯作者:
Earnshaw WC