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Article Addendum

Atg11 Directs Autophagosome Cargoes to the PAS Along Actin Cables

Iryna Monastyrska, Takahiro Shintani, Daniel J. Klionsky and Fulvio Reggiori

volume 2 | issue 2

April/May/June 2006
Pages: 119 - 121

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For more than 40 years, autophagy has been almost exclusively studied as a cellular response that allows adaptation to starvation situations. In nutrient-deprived conditions, cytoplasmic components and organelles are randomly sequestered into double-membrane vesicles called autophagosomes, creating the notion that this pathway is a nonselective process. Recent results, however, have demonstrated that under certain circumstances, cargoes such as protein complexes, organelles and bacteria can be selectively and exclusively incorporated into double-membrane vesicles. We have recently shown that actin plays an essential role in two selective types of autophagy in the yeast Saccharomyces cerevisiae, the cytoplasm to vacuole targeting (Cvt) pathway and pexophagy, raising the possibility that the structures formed by polymers of this protein helps autophagosomes in recognizing the cargoes that must be delivered to the vacuole. In this addendum, we discuss the possible central role of Atg11 as a molecule connecting cargoes, actin and pre-autophagosomal structure (PAS) elements.

Addendum to:
The Actin Cytoskeleton is Required for Selective Types of Autophagy, but not Non-Specific Autophagy, in the Yeast Saccharomyces cerevisiae
F. Reggiori, I. Monastryrska, T. Shintani and D.J. Klionsky
Mol Biol Cell 2005; In press.



We now provide open access to journal articles published online for one year or more. This article may be downloaded at the following link:
 Download PDF

If the document does not open, please right-click on the link (control-click on a Macintosh) and select the option to save the file to disk.