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A metabolic switch on a yeast arrestin connects glucose signaling to transporte...

Endocytosis is a critical component of plasma membrane dynamics, by allowing the removal of proteins such as transporters or receptors in response to environmental cues. In yeast, transporter endocytosis requires their ubiquitylation at the plasma membrane by the Nedd4-like E3 ubiquitin ligase, Rsp5. Since the ubiquitylation of a given transporter occurs only in response to specific signals, this raises the que...