1.7.3.1	nitroalkane oxidase	-	
1.7.3.2	acetylindoxyl oxidase	-	
1.7.3.3	factor-independent urate hydroxylase	-	
1.7.3.4	hydroxylamine oxidase	transferred to EC 1.7.2.6 and EC 1.7.3.6	
1.7.3.5	3-aci-nitropropanoate oxidase	-	
1.7.3.6	hydroxylamine oxidase (cytochrome)	-