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Possible Membrane Sources of the isolation membrane

Some of the possible scenarios for IM formation are illustrated here. According to the maturation model, upon induction of autophagy, membrane may be directly derived from the ER by folding (A), or in the form of vesicular transport (B). In the assembly model, membrane may be assembled de novo at the site of IM formation, originating from nonvesicular transport, such as micellar, as shown in (C), or local synthesis (D). See text for further details.

Figure 2. Journal.pbio.0040036.g002.png

Abbreviations: Atg, autophagy-related gene; ER, endoplasmic reticulum; IM, isolation membrane; PAS, preautophagosomal structure

Citation: Juhasz G, Neufeld TP (2006) Autophagy: A Forty-Year Search for a Missing Membrane Source. PLoS Biol 4(2): e36. doi:10.1371/journal.pbio.0040036

http://www.plosbiology.org/article/info:doi/10.1371/journal.pbio.0040036

Published: February 14, 2006

Copyright: © 2006 Juhasz and Neufeld. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in ay medium, provided the original author and source are credited.

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