Structure and control of the actin regulatory WAVE complex.
Structure and control of the actin regulatory WAVE complex.
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肌动蛋白调节波复合物的结构和控制。
DOI:
10.1038/nature09623
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发表时间:
2010-11-25
期刊:
影响因子:
64.8
通讯作者:
Rosen, Michael K.
中科院分区:
文献类型:
--
作者:
Chen, Zhucheng;Borek, Dominika;Padrick, Shae B.;Gomez, Timothy S.;Metlagel, Zoltan;Ismail, Ayman M.;Umetani, Junko;Billadeau, Daniel D.;Otwinowski, Zbyszek;Rosen, Michael K.
Members of the Wiskott-Aldrich Syndrome Protein (WASP) family control cytoskeletal dynamics by promoting actin filament nucleation by the Arp2/3 complex. The WASP relative, WAVE, regulates lamellipodia formation within a 400 kDa, hetero-pentameric WAVE Regulatory Complex (WRC). The WRC is inactive toward the Arp2/3 complex, but can be stimulated by the Rac GTPase, kinases and phosphatidylinositols. We report the 2.3 Å crystal structure of the WRC and complementary mechanistic analyses. The structure shows that the activity-bearing VCA motif of WAVE is sequestered by a combination of intramolecular and intermolecular contacts within the WRC. Rac and kinases appear to destabilize a WRC element that is necessary for VCA sequestration, suggesting how these signals stimulate WRC activity toward the Arp2/3 complex. Spatial proximity of the Rac binding site and a large basic surface of the WRC suggests how the GTPase and phospholipids could cooperatively recruit the complex to membranes.
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影响因子:
16
作者:
Lebensohn AM;Kirschner MW
通讯作者:
Kirschner MW
DOI:
10.1083/jcb.200802069
发表时间:
2008-07-28
期刊:
The Journal of cell biology
影响因子:
--
作者:
Nakao S;Platek A;Hirano S;Takeichi M
通讯作者:
Takeichi M
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:
4.8
作者:
Kobayashi, K;Kuroda, S;Kaibuchi, K
通讯作者:
Kaibuchi, K
影响因子:
16
作者:
Goley, ED;Rodenbusch, SE;Welch, MD
通讯作者:
Welch, MD