Carbazole 1,9a-dioxygenase

Carbazole 1,9a-dioxygenase (, CARDO) is an enzyme with systematic name 9H-carbazole,NAD(P)H:oxygen oxidoreductase (2,3-hydroxylating). This enzyme catalyses the following chemical reaction


 * 9H-carbazole + NAD(P)H + H+ + O2 $$\rightleftharpoons$$ 2'-aminobiphenyl-2,3-diol + NAD(P)+

Carbazole 1,9a-dioxygenase catalyses the first reaction in the pathway of carbazole degradation.