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Endosomal sorting complex required for transport (ESCRT) machinery in plants compared to that in mammals and fungi. The process of loading ubiquitinated membrane cargoes into exosomes is shown. Ub, ubiquitin; PI3P, phosphatidylinositol-3-phosphate; ADP, adenosine diphosphate; Pi, phosphate. All other entities shown are protein components of the ESCRT machinery. The first step in the plant pathway is not well described.
