1.13.12.1	arginine 2-monooxygenase	L-arginine degradation X (arginine monooxygenase pathway)	
3.5.1.4	amidase	L-arginine degradation X (arginine monooxygenase pathway)	
3.5.3.7	guanidinobutyrase	L-arginine degradation X (arginine monooxygenase pathway)