Mechanistic insights into the anchorage of the contractile ring by anillin and Mid1.
Mechanistic insights into the anchorage of the contractile ring by anillin and Mid1.
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DOI:
10.1016/j.devcel.2015.03.003
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发表时间:
2015-05-26
影响因子:
11.8
通讯作者:
Chen, Zhucheng
中科院分区:
文献类型:
--
作者:
Sun, Lingfei;Guan, Ruifang;Lee, I-Ju;Liu, Yajun;Chen, Mengran;Wang, Jiawei;Wu, Jian-Qiu;Chen, Zhucheng
Anillins and Mid1 are scaffold proteins that play key roles in anchorage of the contractile ring at the cell equator during cytokinesis in animals and fungi, respectively. Here, we report crystal structures and functional analysis of human anillin and S. pombe Mid1. The combined data show anillin contains a cryptic C2 domain and a Rho-binding domain. Together with the tethering PH domain, three membrane-associating elements synergistically bind to RhoA and phospholipids to anchor anillin at the cleavage furrow. Surprisingly, Mid1 also binds to the membrane through a cryptic C2 domain. Dimerization of Mid1 leads to high affinity and preference for PI(4,5)P2, which stably anchors Mid1 at the division plane, bypassing the requirement for Rho GTPase. These findings uncover the unexpected general machinery and the divergent regulatory logics for the anchorage of the contractile ring through the anillin/Mid1 family proteins from yeast to humans.
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DOI:
10.1083/jcb.201305053
发表时间:
2013-11-11
期刊:
The Journal of cell biology
影响因子:
--
作者:
El Amine N;Kechad A;Jananji S;Hickson GR
通讯作者:
Hickson GR
影响因子:
64.8
作者:
Martin, Sophie G.;Berthelot-Grosjean, Martine
通讯作者:
Berthelot-Grosjean, Martine
影响因子:
64.5
作者:
CHANT, J;HERSKOWITZ, I
通讯作者:
HERSKOWITZ, I
影响因子:
9.2
作者:
Almonacid, Maria;Celton-Morizur, Severine;Jakubowski, Jennifer L.;Dingli, Florent;Loew, Damarys;Mayeux, Adeline;Chen, Jun-Song;Gould, Kathleen L.;Clifford, Dawn M.;Paoletti, Anne
通讯作者:
Paoletti, Anne
影响因子:
9.2
作者:
Field, SJ;Madson, N;Cantley, LC
通讯作者:
Cantley, LC