Reaction catalyzed by NADPH:quinone reductase (1.6.5.5)
NADPH
+
+
2
=
NADP+
+
2
NADPH
+
H+
+
2 2-hydroxy-1,4-naphthoquinone
=
NADP+
+
2 2-hydroxy-1,4-naphthosemiquinone
