1.1.1.81	Biosynthesis of secondary metabolites	-	01110	-	
1.1.1.81	formaldehyde assimilation I (serine pathway)	-	-	PWY-1622	
1.1.1.81	Glycine, serine and threonine metabolism	-	00260	-	
1.1.1.81	Glyoxylate and dicarboxylate metabolism	-	00630	-	
1.1.1.81	L-serine biosynthesis II	-	-	PWY-8011	
1.1.1.81	Metabolic pathways	-	01100	-	
1.1.1.81	serine metabolism	serine metabolism	-	-