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Peptide Transporters

Meaning

Peptide transporters are specialized membrane proteins responsible for the active, selective movement of small peptides across biological membranes, including the intestinal epithelium, the renal tubules, and the blood-brain barrier. These transporters play a vital physiological role in the absorption of dietary proteins, the reabsorption of filtered peptides, and the distribution of peptide-based drugs throughout the body. Their efficiency and specificity are critical determinants of peptide bioavailability and therapeutic efficacy.