Annotations: 8B4O

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	PF02322	e8b4oB2	A: alpha bundles	X: Transmembrane heme-binding four-helical bundle (From Homology)	H: Transmembrane heme-binding four-helical bundle	T: Transmembrane di-heme cytochromes	F: PF02322	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A [auth B]	PF02322	Cytochrome bd terminal oxidase subunit II (Cyt_bd_oxida_II)	Cytochrome bd terminal oxidase subunit II	-	Family
B [auth A]	PF01654	Cytochrome bd terminal oxidase subunit I (Cyt_bd_oxida_I)	Cytochrome bd terminal oxidase subunit I	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B]	Cytochrome bd-type quinol oxidase subunit II	-	-	-
B [auth A]	Cytochrome BD ubiquinol oxidase subunit I	oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor oxidoreductase activity oxidoreductase activity, acting on diphenols and related substances as donors catalytic activity binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding	aerobic electron transport chain aerobic respiration cellular respiration oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process electron transport chain generation of precursor metabolites and energy respiratory electron transport chain metabolic process cellular process	cell periphery plasma membrane membrane cellular anatomical entity protein-containing complex cytochrome complex catalytic complex