... byunlabeled Bip-Pro itself, but also by well known sub-strates of H+⁄ peptide cotransporters, such as Gly-Sar,Ala-Ala, Lys-Lys, Ala-Asp, d-Phe-Ala, Ala-Ala-Ala,d-aminolevulinic acid, cefadroxil ... was subtracted fromthe total uptake to calculate the carrier-mediated uptake. Inset:Eadie–Hofstee transformation of the specific Gly-Sar uptake data[S, Gly-Sar concentration (mM); v, uptake ... Ala-Ala, Ala-Ala-Ala, Lys-Lys, d-aminolevulinic acid, cefadroxil,Gly, Pro-Ala, 8-aminooctanoic acid and Gly-Sar were fromSigma-Aldrich (Deisenhofen, Germany). Tert. butyloxycar-bonyl (Boc)–Bip,...