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A new role for the architecture of microvillar actin bundles in apical retention of membrane proteins

By Céline Revenu, Florent Ubelmann, Ilse Hurbain, Fatima El-Marjou, Florent Dingli, Damarys Loew, Delphine Delacour, Jules Gilet, Edith Brot-Laroche, Francisco Rivero, Daniel Louvard and Sylvie Robine


The bundled architecture of actin filaments is not needed for intestinal microvillar morphogenesis, as shown in knockout mice devoid of microvillar actin-bundling proteins. This architecture is essential for the apical anchorage of digestive proteins, probably via the recruitment of key players in apical retention, such as myosin-1a, and, as a result, for intestinal physiology

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Publisher: The American Society for Cell Biology
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Provided by: PubMed Central
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