Status	Description	Organism	Genes	References
	7-cyano-7-deazaguanine reductase	Brucella ceti	queF
	7-cyano-7-deazaguanine reductase	Brucella melitensis	queF
	pyruvate flavodoxin/ferredoxin oxidoreductase domain-containing protein	Nostoc punctiforme	GJNP-3768