establishment of localization establishment of localization establishment of localization establishment of localization establishment of localization establishment of localization establishment of localization establishment of localization establishment of localization establishment of localization establishment of localizationestablishment of localization neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activity transmembrane transporter activity neurotransmitter transporter activityneurotransmitter transporter activity transmembrane transporter activitytransmembrane transporter activity cell membrane cell membrane cell membrane cell membrane cell membrane cell membrane cell membrane cell membrane cell membrane cell membrane cellcell membranemembrane