Status	Description	Organism	Genes	References
	cytochrome d oxidase subunit II	Agrobacterium fabrum	cydB cydA
	cytochrome o ubiquinol oxidase subunit II	Agrobacterium fabrum	cyoA cyoB cyoC cyoD
	putative cytochrome bd ubiquinol oxidase subunit II	Bacillus subtilis	ythB
	cytochrome d ubiquinol oxidase, subunit II	Mycobacterium colombiense	GD78-1752
	cytochrome D ubiquinol oxidase subunit II	Yersinia pestis	cydB
	cytochrome D ubiquinol oxidase subunit I	Yersinia pestis	cydA
		Vibrio cholerae	VC1844 VC1843
		Vibrio cholerae	VCA0872 VCA0873