Protein promiscuity is critical for nutrition and drug absorption

protein promiscuity is critical
Photo by Edward Jenner on

To eat, a cell needs to carry its main nutrients (sugars, lipids, and peptides –pieces of proteins–) across the cell membrane. To do so, it has a number of molecular transporters. Interestingly, although sugar transporters are highly specific to the type of sugar they transport, peptide transporters are not picky at all. This promiscuity has been recently shown to be critical for nutrition.

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