4.3.2.1	Alanine, aspartate and glutamate metabolism	-	00250	-	
4.3.2.1	Arginine biosynthesis	-	00220	-	
4.3.2.1	arginine metabolism	arginine metabolism	-	-	
4.3.2.1	Biosynthesis of secondary metabolites	-	01110	-	
4.3.2.1	canavanine biosynthesis	-	-	PWY-5	
4.3.2.1	L-arginine biosynthesis I (via L-ornithine)	-	-	ARGSYN-PWY	
4.3.2.1	L-arginine biosynthesis II (acetyl cycle)	-	-	ARGSYNBSUB-PWY	
4.3.2.1	L-arginine biosynthesis III (via N-acetyl-L-citrulline)	-	-	PWY-5154	
4.3.2.1	L-arginine biosynthesis IV (archaea)	-	-	PWY-7400	
4.3.2.1	Metabolic pathways	-	01100	-	
4.3.2.1	nitric oxide biosynthesis II (mammals)	-	-	PWY-4983	
4.3.2.1	urea cycle	-	-	PWY-4984	
4.3.2.1	urea cycle	urea cycle	-	-