1.13.12.1	arginine 2-monooxygenase	-	
1.13.12.10	lysine 6-monooxygenase	deleted, reaction covered by EC 1.14.13.59	
1.13.12.11	methylphenyltetrahydropyridine N-monooxygenase	deleted, activity due to EC 1.14.13.8, flavin-containing monooxygenase	
1.13.12.12	apo-beta-carotenoid-14',13'-dioxygenase	transferred to EC 1.13.11.67	
1.13.12.13	Oplophorus-luciferin 2-monooxygenase	-	
1.13.12.14	chlorophyllide-a oxygenase	transferred to EC 1.14.13.122	
1.13.12.15	3,4-dihydroxyphenylalanine oxidative deaminase	-	
1.13.12.16	nitronate monooxygenase	-	
1.13.12.17	dichloroarcyriaflavin A synthase	-	
1.13.12.18	dinoflagellate luciferase	-	
1.13.12.19	2-oxoglutarate dioxygenase (ethene-forming)	-	
1.13.12.2	lysine 2-monooxygenase	-	
1.13.12.20	noranthrone monooxygenase	-	
1.13.12.21	tetracenomycin-F1 monooxygenase	-	
1.13.12.22	deoxynogalonate monooxygenase	-	
1.13.12.23	4-hydroxy-3-prenylbenzoate synthase	-	
1.13.12.24	calcium-regulated photoprotein	-	
1.13.12.3	tryptophan 2-monooxygenase	-	
1.13.12.4	lactate 2-monooxygenase	-	
1.13.12.5	Renilla-type luciferase	-	
1.13.12.6	Cypridina-luciferin 2-monooxygenase	-	
1.13.12.7	firefly luciferase	-	
1.13.12.8	Watasenia-luciferin 2-monooxygenase	-	
1.13.12.9	phenylalanine 2-monooxygenase	-	
1.13.12.B5	Arachnocampa luciferase	preliminary BRENDA-supplied EC number