Claim: Stizolobate synthase, or 3,4-dihydroxy-L-phenylalanine:oxygen 4,5-oxidoreductase, belongs to the family of oxidoreductases.
Evidence: This enzyme belongs to the family of oxidoreductases, specifically those acting on single donors with O2 as oxidant and incorporation of two atoms of oxygen into the substrate (oxygenases). The systematic name of this enzyme class is 3,4-dihydroxy-L-phenylalanine:oxygen 4,5-oxidoreductase (recyclizing).