4.1.1.50	Arginine and proline metabolism	-	00330	-	
4.1.1.50	Cysteine and methionine metabolism	-	00270	-	
4.1.1.50	Metabolic pathways	-	01100	-	
4.1.1.50	methionine metabolism	methionine metabolism	-	-	
4.1.1.50	spermidine biosynthesis I	-	-	BSUBPOLYAMSYN-PWY	
4.1.1.50	spermidine biosynthesis III	-	-	PWY-6834	
4.1.1.50	spermine biosynthesis	-	-	ARGSPECAT-PWY