All of the following amino acids (or amino acid derivatives) neurotransmitters are activated by a reuptake mechanism EXCEPT which one?

Question

Quizplus · Accepted Answer

Histamine is not typically removed from the synaptic cleft via a reuptake mechanism. Instead, it is primarily inactivated by enzymatic metabolism. The enzyme histamine N-methyltransferase (HNMT) in the central nervous system and diamine oxidase (DAO) in the peripheral tissues are responsible for breaking down histamine. In contrast, neurotransmitters like GABA, glycine, and aspartate are known to be cleared from the synaptic cleft by reuptake mechanisms involving specific transporters.

All of the Following Amino Acids (Or Amino Acid Derivatives)