l-histidine decarboxylase [ l-histidine carboxylyase , hdc , ec 4.1.1.22 ] is an enzyme distinct from l-dopa decarboxylase [ l-aromatic amino acid carboxylyase , ddc , ec 4.1.1.28 ] : the two decarboxylases from fetal rat liver were completely separated from each other by deae-cellulose column chromatography and by affinity chromatography with l-carnosine as a ligand .
C0019605
l-histidine carboxylyase
C0007054
decarboxylases