4.2.1.19	Biosynthesis of secondary metabolites	-	01110	
4.2.1.19	Histidine metabolism	-	00340	
4.2.1.19	histidine metabolism	histidine metabolism	-	
4.2.1.19	L-histidine biosynthesis	-	-	
4.2.1.19	Metabolic pathways	-	01100