. "\"Catalysis of the transfer of a neutral L-amino acid from one side of a membrane to the other, up its concentration gradient. The transporter binds the solute and undergoes a series of conformational changes. Transport works equally well in either direction and is driven by a chemiosmotic source of energy. Chemiosmotic sources of energy include uniport, symport or antiport.\" [GOC:mtg_transport]" . . "neutral L-amino acid secondary active transmembrane transporter activity" . . . "neutral L-amino acid porter activity" .