Angiomotin binding-induced activation of Merlin/NF2 in the Hippo pathway.
Angiomotin binding-induced activation of Merlin/NF2 in the Hippo pathway.
复制标题
Hippo 通路中血管动蛋白结合诱导的 Merlin/NF2 激活
作者:
The tumor suppressor Merlin/NF2 functions upstream of the core Hippo pathway kinases Lats1/2 and Mst1/2, as well as the nuclear E3 ubiquitin ligase CRL4 DCAF1. Numerous mutations of Merlin have been identified in Neurofibromatosis type 2 and other cancer patients. Despite more than two decades of research, the upstream regulator of Merlin in the Hippo pathway remains unknown. Here we show by high-resolution crystal structures that the Lats1/2-binding site on the Merlin FERM domain is physically blocked by Merlin's auto-inhibitory tail. Angiomotin binding releases the auto-inhibition and promotes Merlin's binding to Lats1/2. Phosphorylation of Ser518 outside the Merlin's auto-inhibitory tail does not obviously alter Merlin's conformation, but instead prevents angiomotin from binding and thus inhibits Hippo pathway kinase activation. Cancer-causing mutations clustered in the angiomotin-binding domain impair angiomotin-mediated Merlin activation. Our findings reveal that angiomotin and Merlin respectively interface cortical actin filaments and core kinases in Hippo signaling, and allow construction of a complete Hippo signaling pathway.
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影响因子:
3.5
作者:
Cooper J;Giancotti FG
通讯作者:
Giancotti FG
影响因子:
9.2
作者:
Hirate, Yoshikazu;Hirahara, Shino;Inoue, Ken-ichi;Suzuki, Atsushi;Alarcon, Vernadeth B.;Akimoto, Kazunori;Hirai, Takaaki;Hara, Takeshi;Adachi, Makoto;Chida, Kazuhiro;Ohno, Shigeo;Marikawa, Yusuke;Nakao, Kazuki;Shimono, Akihiko;Sasaki, Hiroshi
通讯作者:
Sasaki, Hiroshi
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
30.8
作者:
BIANCHI, AB;HARA, T;KLEY, N
通讯作者:
KLEY, N
影响因子:
4.8
作者:
Chan, Siew Wee;Lim, Chun Jye;Hong, Wanjin
通讯作者:
Hong, Wanjin