1.5.3.21	Metabolic pathways	-	01100	-	
1.5.3.21	Microbial metabolism in diverse environments	-	01120	-	
1.5.3.21	N-methylpyrrolidone degradation	-	-	PWY-7978	
1.5.3.21	Nicotinate and nicotinamide metabolism	-	00760	-	
1.5.3.21	nicotine degradation I (pyridine pathway)	-	-	P181-PWY