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