Reaction catalyzed by magnesium-protoporphyrin IX monomethyl ester (oxidative) cyclase (1.14.13.81)
+
+
NADPH
+
=
+
NADP+
+
H2O
Mg-protoporphyrin IX monomethyl ester
+
O2
+
NADPH
+
H+
=
Mg-protochlorophyllide
+
NADP+
+
H2O
