Structural activation of Mad2 in the mitotic spindle checkpoint: the two-state Mad2 model versus the Mad2 template model.
Structural activation of Mad2 in the mitotic spindle checkpoint: the two-state Mad2 model versus the Mad2 template model.
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DOI:
10.1083/jcb.200601172
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发表时间:
2006-04-24
期刊:
影响因子:
--
通讯作者:
Yu H
中科院分区:
文献类型:
--
作者:
Yu H
The inheritance of a normal assortment of chromosomes during each cell division relies on a cell-cycle surveillance system called the mitotic spindle checkpoint. The existence of sister chromatids that do not achieve proper bipolar attachment to the mitotic spindle in a cell activates this checkpoint, which inhibits the ubiquitin ligase activity of the anaphase-promoting complex or cyclosome (APC/C) and delays the onset of anaphase. The mitotic arrest deficiency 2 (Mad2) spindle checkpoint protein inhibits APC/C through binding to its mitotic-specific activator, Cdc20. Binding of Mad2 to Cdc20 involves a large conformational change of Mad2 and requires the Mad1–Mad2 interaction in vivo. Two related but distinct models of Mad1-assisted activation of Mad2, the “two-state Mad2” and the “Mad2 template” models, have been proposed. I review the recent structural, biochemical, and cell biological data on Mad2, discuss the differences between the two models, and propose experiments that test their key principles.
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影响因子:
7.8
作者:
Kallio, Marko J;Beardmore, Victoria A;Weinstein, Jasminder;Gorbsky, Gary J
通讯作者:
Gorbsky, Gary J
影响因子:
5.3
作者:
Millband, DN;Hardwick, KG
通讯作者:
Hardwick, KG
影响因子:
16.8
作者:
Luo, XL;Tang, ZY;Yu, HT
通讯作者:
Yu, HT
影响因子:
3.3
作者:
Chen, RH;Brady, DM;Hardwick, KG
通讯作者:
Hardwick, KG
DOI:
10.1083/jcb.200204048
发表时间:
2002-08-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Chen RH
通讯作者:
Chen RH