How cells assemble distinct actin networks from shared cytoplasmic components remains an important unresolved question. In this issue, Wirshing et al. (2023. J. Cell Biol.https://doi.org/10.1083/jcb.202209105) demonstrate how capping protein and formin competition for actin filament barbed ends controls the assembly of branched and linear actin networks.

中文翻译：

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Cappin'或formin'：Formin和加帽蛋白对丝末端的竞争塑造肌动蛋白网络

细胞如何从共享的细胞质成分组装不同的肌动蛋白网络仍然是一个重要的未解决问题。在本期中，Wirshing 等人。 (2023. J. Cell Biol.https://doi.org/10.1083/jcb.202209105) 演示了加帽蛋白和福明对肌动蛋白丝倒刺末端的竞争如何控制分支和线性肌动蛋白网络的组装。