“…It is conceivable, based on the currently acknowledged structural and functional differences, to divide the SLC15 family of peptide transporters into two subfamilies [11]. , His-Leu-lopinavir [491], alafosfalin [536], cephalexin [18,143,238,245,476,713,714], valganciclovir [681,741], mirogabalin [817], -Ala-Lys-AMCA [4,13,369,423] muramyl dipeptide [342,683], D-Ala-Lys-AMCA [423,691,783], -iE-DAP [683,689],…”