VAMP8-3xHA Uptake Assay in HeLa Cells   

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Original research article

A brief version of this protocol appeared in:
EMBO Reports
Mar 2015


Transmembrane proteins are rarely exclusively localized to a specific vesicle or an organelle. Most transmembrane proteins undergo complicated trafficking routes. Thus, transmembrane proteins are under constant flux, and at steady state, found on a variety of vesicles or organelles. This characteristic makes the study of their trafficking routes complex, since at any given moment, different molecules are often being trafficked in opposing directions. Pulse-chase experiments can temporally track a specific pool of a transmembrane protein of interest, allowing for the kinetic description of its trafficking route. This type of technique has been used extensively to follow a large array of plasma membrane localized proteins (Diril et al., 2006; Jean et al., 2010). Here, we describe a method that allows the study of VAMP8 trafficking from the plasma membrane to endolysosomal compartments. This method was used to describe a role for MTMR13 and RAB21 in the regulation of VAMP8 trafficking to endolysosomes (Jean et al., 2015).

Keywords: Membrane trafficking, Endosomal sorting, Autophagy

Copyright: © 2016 The Authors; exclusive licensee Bio-protocol LLC.
How to cite:  Readers should cite both the Bio-protocol article and the original research article where this protocol was used:
  1. Jean, S. and Kiger, A. A. (2016). VAMP8-3xHA Uptake Assay in HeLa Cells. Bio-protocol 6(4): e1739. DOI: 10.21769/BioProtoc.1739.
  2. Jean, S., Cox, S., Nassari, S. and Kiger, A. A. (2015). Starvation-induced MTMR13 and RAB21 activity regulates VAMP8 to promote autophagosome-lysosome fusion. EMBO Rep 16(3): 297-311.

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