Reaction catalyzed by pyrroloquinoline-quinone synthase (1.3.3.11)
+
3
=
+
2
+
2
H2O
6-(2-amino-2-carboxyethyl)-7,8-dioxo-1,2,3,4,7,8-hexahydroquinoline-2,4-dicarboxylate
+
3 O2
=
4,5-dioxo-4,5-dihydro-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylate
+
2 H2O2
+
2 H2O
