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Previously, we've shown that S. cerevisiae broadly re-configures the nutrient transporters during the plasma membrane layer in response to amino acid availability, through endocytosis of sugar- and amino acid transporters (AATs) (Müller et al., 2015). A genome-wide display now disclosed that the discerning endocytosis of four AATs during starvation required the α-arrestin family protein Art2/Ecm21, an adaptor for the ubiquitin ligase Rsp5, and its own induction through the typical amino acid