delta-aminolevulinic acid dehydratase ( 5-aminolevulinic acid hydro-lyase ( adding 5-aminolevulinic acid and cyclizing ) , ec 4.2.1.24 purified from bovine liver in the presence of both sh-reducing reagent and zinc during the purification contained one zinc atom and eight sh groups/subunit .
C0002564
delta-aminolevulinic acid dehydratase
C0020239
hydro-lyase