Annotations: 4H0K

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cytochrome c	8068545	3000815	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Cytochrome c	8068545	3000815	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Cytochrome_CBB3	e4h0kA1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrome_CBB3	ECOD (1.6)
B	Cytochrome_CBB3	e4h0kB1	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrome_CBB3	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)
B	1.10.760.10	Mainly Alpha	Orthogonal Bundle	Cytochrome Bc1 Complex	Chain D, domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13442	Cytochrome C oxidase, cbb3-type, subunit III (Cytochrome_CBB3)	Cytochrome C oxidase, cbb3-type, subunit III	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Cytochrome c6	binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	photosynthesis cellular metabolic process metabolic process cellular process	membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular vesicle cytoplasmic vesicle lumen intracellular organelle lumen intracellular organelle cell periphery cytoplasmic vesicle bacterial thylakoid vesicle thylakoid non-membrane-bounded organelle vesicle lumen membrane-bounded organelle intracellular anatomical structure membrane-enclosed lumen intracellular vesicle cytoplasmic vesicle lumen intracellular organelle lumen intracellular organelle cell periphery cytoplasmic vesicle bacterial thylakoid vesicle thylakoid non-membrane-bounded organelle vesicle lumen plasma membrane membrane cellular anatomical entity intracellular membrane-bounded organelle organelle lumen organelle intracellular non-membrane-bounded organelle cytoplasm plasma membrane-derived thylakoid lumen thylakoid lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
A, B	IPR009056	Cytochrome c-like domain	Domain
A, B	IPR023655	Cytochrome c6	Family
A, B	IPR008168	Cytochrome c, class IC	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.