5.3.2.1	phenylpyruvate tautomerase	-	
5.3.2.2	oxaloacetate tautomerase	-	
5.3.2.3	TDP-4-oxo-6-deoxy-alpha-D-glucose-3,4-oxoisomerase (dTDP-3-dehydro-6-deoxy-alpha-D-galactopyranose-forming)	-	
5.3.2.4	TDP-4-oxo-6-deoxy-alpha-D-glucose-3,4-oxoisomerase (dTDP-3-dehydro-6-deoxy-alpha-D-glucopyranose-forming)	-	
5.3.2.5	2,3-diketo-5-methylthiopentyl-1-phosphate enolase	-	
5.3.2.6	2-hydroxymuconate tautomerase	-	
5.3.2.7	ascopyrone tautomerase	-	
5.3.2.8	4-oxalomesaconate tautomerase	-