... found.Keywords: insect; neurotransmitter; transporter; dopamine; octopamine; cocaine.The catecholamine dopamine (DA), the phenolamineoctopamine (OA) and the indolamine serotonin (5-HT) in uence a ... donlyc@agr.gc.caAbbreviations:AM,D-amphetamine; DA, dopamine; DAT, dopamine transporter; DBBT, dibromobenztropine; DIG, digoxigenin;E, epinephrine; ET, epinephrine transporter; GUS, a-glucuronidase;5-HT, serotonin; NE, norepinephrine; ... biogenic amine transporters, including a heptanleucine zipper motif (L52-L73) within the second TMD [17].Two conserved cysteine residues C134 and C143 involved in transporter insertion into membranes...