Status	Description	Organism	Genes	References
	isopentenyl-diphosphate:NAD(P)+ oxidoreductase	Escherichia coli	EG11081
	4-hydroxy-3-methylbut-2-enyl diphosphatereductase	Mycobacterium tuberculosis	G13AA-1243
	4-hydroxy-3-methylbut-2-enyl diphosphate reductase	Peptoclostridium difficile	G12WB-1962