<prompt> Decarboxylation of Ammo acid produces all exceptHistamineProlineTryptamineTyramine  <response>: Amino decarboxylase catalyzes several different decarboxylation reactions: L-DOPA to dopamine L-phenylalanine to phenethylamine L-tyrosine to tyramine L-histidine to histamine L-tryptophan to tryptamine 5-hydroxytryptophan to serotonin 5-hydroxytryptamine The enzyme uses pyridoxal phosphate, the active form of vitamin B6, as a cofactor. Products of Decarboxylation and its uses. Ref: Biochemistry by U. Satyanarayana 3rd edition Pgno : 375 