Journal
FEBS LETTERS
Volume 584, Issue 7, Pages 1367-1373Publisher
WILEY
DOI: 10.1016/j.febslet.2010.01.019
Keywords
Pexophagy; Peroxisome; Autophagy; MIPA; PAS; Pexophagosome
Funding
- NIH [GM069373]
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Pexophagy is a selective autophagy process wherein damaged and/or superfluous peroxisomes undergo vacuolar degradation. In methylotropic yeasts, where pexophagy has been studied most extensively, this process occurs by either micro- or macropexophagy: processes analogous to micro- and macroautophagy. Recent studies have identified specific factors and illustrated mechanisms involved in pexophagy. Although mechanistically pexophagy relies heavily on the core autophagic machinery, the latest findings about the role of auxiliary pexophagy factors have highlighted specialized membrane structures required for micropexophagy, and shown how cargo selectivity is achieved and how cargo size dictates the requirement for these factors during pexophagy. These insights and additional observations in the literature provide a framework for an understanding of the physiological role(s) of pexophagy. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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