Abstract
Together with the proteasome, autophagy is one of the major catabolic pathways of the cell. In response to cellular needs or environmental cues, this transport route targets specific structures for degradation into the mammalian lysosomes or the yeast and plant vacuoles. The mechanisms allowing exclusive autophagic elimination of unwanted structures are currently the object of intensive investigations. The emerging picture is that there is a series of autophagy receptors that determines the specificity of the different selective types of autophagy. How cargo binding and recognition is regulated by these receptors, however, is largely unknown. In their study, Motley et al (2012) have shed light into the molecular principles underlying the turnover of excess peroxisomes in the budding yeast Saccharomyces cerevisiae .
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