Specificity
This antibody recognises DOPA decarboxylase, also known as aromatic-L-amino acid decarboxylase or DDC), an enzyme that catalyses the decarboxylation of L-3,4-dihydroxyphenylalanine (DOPA) to dopamine, L-5-hydroxytryptophan to serotonin and L-tryptophan to tryptamine. The enzyme is expressed ubiquitously and is essential for the formation of catecholamines, indoleamines and trace amines. DDC is considered to be the rate-limiting step for the formation of trace amines, but not for the formation of catecholamines or indoleamines. It also becomes rate-limiting for dopamine formation in Parkinson's disease patients treated with L-DOPA.