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Chapitre D'ouvrage Année : 2021

RUSH-Synchronized to Measure Local Exocytosis

Lou Fourriere
  • Fonction : Auteur
Nelly Gareil
  • Fonction : Auteur
Franck Perez

Résumé

Proteins destined to be exposed to the extracellular space enter the secretory pathway at the level of the endoplasmic reticulum. Proteins are then transported to the Golgi apparatus and addressed to their destination compartment, such as the plasma membrane for exocytic cargos. Exocytosis constitutes the last step of the anterograde transport of secretory cargos. Exocytic vesicles fuse with the plasma membrane releasing soluble proteins to the extracellular milieu and transmembrane proteins to the plasma membrane. In order to monitor local exocytosis of cargos, we describe in this chapter how to perform synchronization of the anterograde transport of an exocytic cargo of interest using the Retention Using Selective Hooks (RUSH) assay in combination with Selective Protein Immobilization (SPI). SPI is based on the coating of coverslips with anti-GFP antibodies, which capture the GFP-tagged RUSH cargos once exposed to the cell surface after its release by the addition of biotin.
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Dates et versions

hal-03159845 , version 1 (04-03-2021)

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Gaëlle Boncompain, Lou Fourriere, Nelly Gareil, Franck Perez. RUSH-Synchronized to Measure Local Exocytosis. Exocytosis and endocytosis, pp.253-264, 2021, ⟨10.1007/978-1-0716-1044-2_17⟩. ⟨hal-03159845⟩
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