Serotonin transporter (SERT) and norepinephrine transporter (NET) locate in the nerve presynaptic membrane. They are responsible for terminating the action of 5-HT and NE in the synapse.

• 5-羟色胺转运体(serotonin transporter，SERT)和去甲肾上腺素转运体(norepinephrine transporter，NET)位于神经突触前膜，分别负责回吸收突触间隙的5-HT、NE，因此它们在调节细胞外神经递质的浓度方面起重要作用。