Annotations: 9FKS

Respiratory supercomplex CIII2-CIV2 from alphaproteobacterium

External Resource: Annotation

Domain Annotation: ECOD Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth b]		e9fksb1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
E [auth e]	COX1	e9fkse1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: COX1	ECOD (v295.2)
C [auth c]	COX1	e9fksc1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: COX1	ECOD (v295.2)
F [auth f]		e9fksf1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
G [auth g]		e9fksg1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
K [auth k]	COX1	e9fksk1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: COX1	ECOD (v295.2)
H [auth h]		e9fksh1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
L [auth l]		e9fksl1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
I [auth i]		e9fksi1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
M [auth m]		e9fksm1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
J [auth j]		e9fksj1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
N [auth n]		e9fksn1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)
A [auth a]	COX1	e9fksa1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: COX1	ECOD (v295.2)
D [auth d]		e9fksd1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F:	ECOD (v295.2)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth b], E [auth e]	Cytochrome c1	binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding	-	cellular anatomical structure membrane
C [auth c], F [auth f]	Ubiquinol-cytochrome c reductase iron-sulfur subunit	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity oxidoreductase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity catalytic activity transmembrane transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity oxidoreductase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity catalytic activity transmembrane transporter activity iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding cation binding ion binding metal ion binding	-	cell periphery cellular anatomical structure plasma membrane membrane
G [auth g], K [auth k]	Cytochrome c oxidase subunit 1	oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity binding tetrapyrrole binding heme binding cation binding ion binding metal ion binding small molecule binding	electron transport coupled proton transport transport proton transmembrane transport monoatomic ion transmembrane transport establishment of localization monoatomic cation transmembrane transport transmembrane transport localization energy coupled proton transmembrane transport, against electrochemical gradient monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration electron transport coupled proton transport transport proton transmembrane transport monoatomic ion transmembrane transport establishment of localization monoatomic cation transmembrane transport transmembrane transport localization energy coupled proton transmembrane transport, against electrochemical gradient monoatomic ion transport cellular process monoatomic cation transport aerobic respiration cellular respiration oxidative phosphorylation energy derivation by oxidation of organic compounds metabolic process generation of precursor metabolites and energy respiratory electron transport chain electron transport chain	respiratory chain complex protein-containing complex catalytic complex cytochrome complex membrane membrane protein complex respiratory chain complex IV transporter complex cellular anatomical structure transmembrane transporter complex oxidoreductase complex cell periphery plasma membrane
H [auth h], L [auth l]	Cytochrome c oxidase subunit 2	oxidoreductase activity catalytic activity cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity oxidoreductase activity catalytic activity cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	aerobic respiration cellular respiration oxidative phosphorylation energy derivation by oxidation of organic compounds respiratory electron transport chain ATP synthesis coupled electron transport electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery cellular anatomical structure plasma membrane membrane
I [auth i], M [auth m]	cytochrome-c oxidase	monoatomic cation transmembrane transporter activity proton transmembrane transporter activity primary active transmembrane transporter activity cytochrome-c oxidase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreductase activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity oxidoreductase activity, acting on a heme group of donors monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity catalytic activity	aerobic electron transport chain aerobic respiration cellular respiration oxidative phosphorylation energy derivation by oxidation of organic compounds respiratory electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy	cell periphery cellular anatomical structure plasma membrane membrane
J [auth j], N [auth n]	Aa3 type cytochrome c oxidase subunit IV	-	-	-
O [auth o], P [auth p]	Cytochrome c, class I	binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding	-	cell periphery cellular anatomical structure plasma membrane membrane
A [auth a], D [auth d]	Cytochrome b	oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity oxidoreductase activity catalytic activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity oxidoreductase activity, acting on diphenols and related substances as donors primary active transmembrane transporter activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity quinol-cytochrome-c reductase activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding	cellular respiration energy derivation by oxidation of organic compounds respiratory electron transport chain electron transport chain metabolic process cellular process generation of precursor metabolites and energy	respiratory chain complex protein-containing complex catalytic complex cytochrome complex membrane membrane protein complex transporter complex respiratory chain complex III cellular anatomical structure transmembrane transporter complex oxidoreductase complex cell periphery plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth b], E [auth e]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
B [auth b], E [auth e]	IPR002326	Cytochrome c1	Family
B [auth b], E [auth e]	IPR009056	Cytochrome c-like domain	Domain
C [auth c], F [auth f]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
C [auth c], F [auth f]	IPR005805	Rieske iron-sulphur protein, C-terminal	Domain
C [auth c], F [auth f]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
C [auth c], F [auth f]	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
C [auth c], F [auth f]	IPR014349	Rieske iron-sulphur protein	Family
C [auth c], F [auth f]	IPR019470	Ubiquitinol-cytochrome C reductase, Fe-S subunit, TAT signal	Domain
C [auth c], F [auth f]	IPR006317	Ubiquinol-cytochrome c reductase, iron-sulphur subunit	Domain
C [auth c], F [auth f]	IPR019546	Twin-arginine translocation pathway, signal sequence, bacterial/archaeal	Conserved Site
G [auth g], K [auth k]	IPR036927	Cytochrome c oxidase-like, subunit I superfamily	Homologous Superfamily
G [auth g], K [auth k]	IPR000883	Cytochrome c oxidase subunit I	Family
G [auth g], K [auth k]	IPR023615	Cytochrome c oxidase, subunit I, copper-binding site	Binding Site
G [auth g], K [auth k]	IPR023616	Cytochrome c oxidase-like, subunit I domain	Domain
G [auth g], K [auth k]	IPR033944	Cytochrome c oxidase subunit I domain	Domain
G [auth g], K [auth k]	IPR014241	Cytochrome c oxidase, subunit I bacterial type	Family
H [auth h], L [auth l]	IPR002429	Cytochrome c oxidase subunit II-like C-terminal	Domain
H [auth h], L [auth l]	IPR011759	Cytochrome C oxidase subunit II, transmembrane domain	Domain
H [auth h], L [auth l]	IPR036257	Cytochrome C oxidase subunit II, transmembrane domain superfamily	Homologous Superfamily
H [auth h], L [auth l]	IPR008972	Cupredoxin	Homologous Superfamily
H [auth h], L [auth l]	IPR001505	Copper centre Cu(A)	Binding Site
H [auth h], L [auth l]	IPR045187	Cytochrome c/quinol oxidase subunit II	Family
H [auth h], L [auth l]	IPR014222	Cytochrome c oxidase, subunit II	Domain
I [auth i], M [auth m]	IPR035973	Cytochrome c oxidase subunit III-like superfamily	Homologous Superfamily
I [auth i], M [auth m]	IPR013833	Cytochrome c oxidase, subunit III, 4-helical bundle	Homologous Superfamily
I [auth i], M [auth m]	IPR000298	Cytochrome c oxidase subunit III-like	Domain
I [auth i], M [auth m]	IPR033945	Cytochrome c oxidase subunit III domain	Domain
I [auth i], M [auth m]	IPR024791	Cytochrome c oxidase subunit III	Family
J [auth j], N [auth n]	IPR012422	Cytochrome c oxidase, subunit IV, bacterial aa3 type	Domain
J [auth j], N [auth n]	IPR036596	Bacterial aa3 type cytochrome c oxidase subunit IV superfamily	Homologous Superfamily
O [auth o], P [auth p]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
O [auth o], P [auth p]	IPR009056	Cytochrome c-like domain	Domain
O [auth o], P [auth p]	IPR002327	Cytochrome c, class IA/ IB	Family
A [auth a], D [auth d]	IPR036150	Cytochrome b/b6, C-terminal domain superfamily	Homologous Superfamily
A [auth a], D [auth d]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
A [auth a], D [auth d]	IPR048260	Cytochrome b/b6, C-terminal domain, eukaryotic/bacterial	Domain
A [auth a], D [auth d]	IPR016174	Di-haem cytochrome, transmembrane	Homologous Superfamily
A [auth a], D [auth d]	IPR005798	Cytochrome b/b6, C-terminal	Domain
A [auth a], D [auth d]	IPR048259	Cytochrome b/b6, N-terminal domain, eukaryotic/bacterial	Domain
A [auth a], D [auth d]	IPR030689	Cytochrome b	Family
A [auth a], D [auth d]	IPR005797	Cytochrome b/b6, N-terminal domain	Domain

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

9FKS | pdb_00009fks

Respiratory supercomplex CIII2-CIV2 from alphaproteobacterium

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage