Reaction catalyzed by nicotine blue oxidoreductase (1.1.1.328), NAD(P)H dehydrogenase (quinone) (1.6.5.2), NADPH:quinone reductase (1.6.5.5), NADPH dehydrogenase (quinone) (1.6.5.10)
+
NADPH
+
=
+
NADP+
1,4-naphthoquinone
+
NADPH
+
H+
=
1,4-naphthoquinol
+
NADP+
