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D-Ala-Lys-AMCA TFA is a known substrate of proton-coupled oligopeptide transporter 1 (PEPT1) that emits blue fluorescence. D-Ala-Lys-AMCA TFA may be transported into Caco-2 cells and liver cancer cells.

D-Ala-Lys-AMCA是一个已知的PEPT1底物，具有发射蓝色荧光的性质。该化合物可被转运至肝癌细胞及Caco-2细胞。D-Ala-Lys-AMCA能够作为工具用于评估PEPT1的特异性底物或其抑制剂。