A pyridoxal 5'-phosphate protein. The enzyme, isolated from the mosquito Aedes aegypti, catalyses the production of 3,4-dihydroxylphenylacetaldehyde directly from L-dopa. Dopamine is not formed as an intermediate (cf. EC 220.127.116.11, aromatic-L-amino-acid decarboxylase). The enzyme is specific for L-dopa and does not react with other aromatic amino acids with the exception of a low activity with alpha-methyl-L-dopa.