Histamine Neurotransmitter

Structure and properties Histamine (C5H10N3, Mr = 111.15 g/mol) is a biogenic amine (decarboxylated histidine). It is formed by L-histidine decarboxylase and plays a central role as a mediator in allergic reactions and in the immune system. It is found in mast cells, basophils, platelets and some neurons, where it is stored in vesicles and … Histamine Neurotransmitter