proton-dependent oligopeptide transport (POT) family protein. Identical to Putative peptide transporter PTR3-B (PTR3-B) [Arabidopsis Thaliana] (GB:Q9FNL8); similar to ATPTR3/PTR3 (PEPTIDE TRANSPORTER PROTEIN 3), transporter [Arabidopsis thaliana] (TAIR:AT5G46050.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO71450.1); similar to hypothetical protein [Vitis vinifera] (GB:CAN63331.1); similar to putative peptide transport protein [Oryza sativa] (GB:AAG21898.1); contains InterPro domain TGF-beta receptor, type I/II extracellular region; (InterPro:IPR000109); contains InterPro domain MFS general substrate transporter (InterPro:IPR