ATOPT1 (oligopeptide transporter 1); oligopeptide transporter. Identical to Oligopeptide transporter 1 (OPT1) [Arabidopsis Thaliana] (GB:Q9FG72); similar to ATOPT2 (oligopeptide transporter 2), oligopeptide transporter [Arabidopsis thaliana] (TAIR:AT1G09930.1); similar to ATOPT7 (oligopeptide transporter 7), oligopeptide transporter [Arabidopsis thaliana] (TAIR:AT4G10770.1); similar to ATOPT5 (oligopeptide transporter 5), oligopeptide transporter [Arabidopsis thaliana] (TAIR:AT4G26590.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO45160.1); similar to putative sexual differentiation process protein isp4 [Oryza sativa (japonic