The front of motile cells is thought to be pushed out by branched filaments of actin protein abutting the cell membrane. New work challenges this textbook view, showing that actin branches grow away from, or obliquely to, a surface.
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Sykes, C., Plastino, J. Actin filaments up against a wall. Nature 464, 365–366 (2010). https://doi.org/10.1038/464365a
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DOI: https://doi.org/10.1038/464365a
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