proton-dependent oligopeptide transport (POT) family protein. similar to proton-dependent oligopeptide transport (POT) family protein [Arabidopsis thaliana] (TAIR:AT3G53960.1); similar to hypothetical protein [Vitis vinifera] (GB:CAN73118.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO69126.1); contains InterPro domain TGF-beta receptor, type I/II extracellular region; (InterPro:IPR000109); contains InterPro domain MFS general substrate transporter (InterPro:IPR016196)