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Letter

Nature Cell Biology 10, 849–857 (1 July 2008) | doi:10.1038/ncb1745

WAVE and Arp2/3 jointly inhibit filopodium formation by entering into a complex with mDia2

Petra Beli , Debora Mascheroni , Dalu Xu & Metello Innocenti

Lamellipodia/ruffles and filopodia are protruding organelles containing short and highly branched or long and unbranched actin filaments, respectively. The microscopic morphology, dynamic development and protein signature of both lamellipodia/ruffles and filopodia have been investigated; however, little is known about the mechanisms by which cells coordinate the formation of these actin-based extensions.