Structure and control of the actin regulatory WAVE complex

Zhucheng Chen, Dominika Borek, Shae B. Padrick, Timothy S. Gomez, Zoltan Metlagel, Ayman M. Ismail, Junko Umetani, Daniel D. Billadeau, Zbyszek Otwinowski, Michael K. Rosen

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Abstract

Members of the Wiskott-Aldrich syndrome protein (WASP) family control cytoskeletal dynamics by promoting actin filament nucleation with the Arp2/3 complex. The WASP relative WAVE regulates lamellipodia formation within a 400-kilodalton, hetero-pentameric WAVE regulatory complex (WRC). The WRC is inactive towards the Arp2/3 complex, but can be stimulated by the Rac GTPase, kinases and phosphatidylinositols. Here we report the 2.3-ngstrom 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 the way in which these signals stimulate WRC activity towards the Arp2/3 complex. The spatial proximity of the Rac binding site and the large basic surface of the WRC suggests how the GTPase and phospholipids could cooperatively recruit the complex to membranes.

Original languageEnglish (US)
Pages (from-to)533-538
Number of pages6
JournalNature
Volume468
Issue number7323
DOIs
StatePublished - Nov 25 2010

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Actin-Related Protein 2-3 Complex
Actins
GTP Phosphohydrolases
Wiskott-Aldrich Syndrome Protein Family
Phosphotransferases
Wiskott-Aldrich Syndrome Protein
Pseudopodia
Phosphatidylinositols
Actin Cytoskeleton
Phospholipids
Binding Sites
Membranes

ASJC Scopus subject areas

  • General

Cite this

Chen, Z., Borek, D., Padrick, S. B., Gomez, T. S., Metlagel, Z., Ismail, A. M., ... Rosen, M. K. (2010). Structure and control of the actin regulatory WAVE complex. Nature, 468(7323), 533-538. https://doi.org/10.1038/nature09623

Structure and control of the actin regulatory WAVE complex. / 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.

In: Nature, Vol. 468, No. 7323, 25.11.2010, p. 533-538.

Research output: Contribution to journalArticle

Chen, Z, Borek, D, Padrick, SB, Gomez, TS, Metlagel, Z, Ismail, AM, Umetani, J, Billadeau, DD, Otwinowski, Z & Rosen, MK 2010, 'Structure and control of the actin regulatory WAVE complex', Nature, vol. 468, no. 7323, pp. 533-538. https://doi.org/10.1038/nature09623
Chen Z, Borek D, Padrick SB, Gomez TS, Metlagel Z, Ismail AM et al. Structure and control of the actin regulatory WAVE complex. Nature. 2010 Nov 25;468(7323):533-538. https://doi.org/10.1038/nature09623
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. / Structure and control of the actin regulatory WAVE complex. In: Nature. 2010 ; Vol. 468, No. 7323. pp. 533-538.
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