Histidine Decarboxylase
Carboxy-Lyase, Histidine; Decarboxylase, Histidine; Histidine Carboxy Lyase
An enzyme that catalyzes the decarboxylation of histidine to histamine and carbon dioxide. It requires pyridoxal phosphate in animal tissues, but not in microorganisms. EC 4.1.1.22.