Is Histamine a basic aminoacid

Histamine is not classified as a basic amino acid; rather, it is a biogenic amine derived from the amino acid histidine. While it contains an amine group, which is characteristic of basic amino acids, histamine itself does not have the properties or structure typical of basic amino acids like lysine, arginine, or ornithine. Instead, it plays a crucial role in immune responses, gastric acid secretion, and neurotransmission.