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Retention Using Selective Hooks (RUSH) Cargo Sorting Assay for Protein Vesicle Tracking in HeLa Cells

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Pacheco-Fernandez,  Natalia
Fässler, Reinhard / Molecular Medicine, Max Planck Institute of Biochemistry, Max Planck Society;

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Pakdel,  Mehrshad
Fässler, Reinhard / Molecular Medicine, Max Planck Institute of Biochemistry, Max Planck Society;

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Citation

Pacheco-Fernandez, N., Pakdel, M., & von Blume, J. (2021). Retention Using Selective Hooks (RUSH) Cargo Sorting Assay for Protein Vesicle Tracking in HeLa Cells. Bio-protocol, 11(5): e3936. doi:10.21769/BioProtoc.3936.


Cite as: http://hdl.handle.net/21.11116/0000-0008-A851-F
Abstract
Monitoring vesicle trafficking is an excellent tool for the evaluation of protein dynamics in living cells. Such study is key for the understanding of protein sorting and secretion. Recent developments in microscopy, as well as new methodologies developed to study synchronized trafficking of proteins, allowed a better understanding of signaling, regulation and trafficking dynamics at the secretory pathway. One of the most helpful tools so far developed is the Retention Using Selective Hooks (RUSH) system, a methodology that facilitates the evaluation of synchronized cargo trafficking by monitoring fluorescent vesicles in cells upon biotin addition. Here we present a protocol that allows the quantitative evaluation of protein cargo trafficking at different fixed time points and an analytic approach that enables a better examination of specific cargo trafficking dynamics at the secretory pathway. [GRAPHICS]