6.2.1.4	Biosynthesis of secondary metabolites	-	01110	-	
6.2.1.4	Citrate cycle (TCA cycle)	-	00020	-	
6.2.1.4	citric acid cycle	citric acid cycle	-	-	
6.2.1.4	itaconate degradation	-	-	PWY-5749	
6.2.1.4	Metabolic pathways	-	01100	-	
6.2.1.4	Microbial metabolism in diverse environments	-	01120	-	
6.2.1.4	Propanoate metabolism	-	00640	-	
6.2.1.4	TCA cycle III (animals)	-	-	PWY66-398