Status	Description	Organism	Genes	References
	4-oxalocrotonate tautomerase	Bacillus megaterium	GHSY-507
	oxaloacetate keto-enol-isomerase	Escherichia coli	EG10356
	4-oxalocrotonate tautomerase	Flavobacterium indicum	GLDB-1626
	4-oxalocrotonate tautomerase	Pseudomonas fluorescens	GJXA-3748
	4-oxalocrotonate tautomerase	Paenibacillus polymyxa	GLI7-2491