6Q9E | pdb_00006q9e

Complex III2 focused refinement from Ovine respiratory supercomplex I+III2

External Resource: Annotation

Domain Annotation: ECOD Classification
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth a2]	e6q9ea21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
L [auth a4]	e6q9ea41	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
M [auth b2]	e6q9eb21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
C [auth b1]	e6q9eb11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
E [auth f1]	e6q9ef11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
O [auth f2]	e6q9ef21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
F [auth d1]	e6q9ed11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
P [auth d2]	e6q9ed21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
G [auth q1]	e6q9eq11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
Q [auth q2]	e6q9eq21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
J [auth i1]	e6q9ei11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
T [auth i2]	e6q9ei21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
R [auth h2]	e6q9eh21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
H [auth h1]	e6q9eh11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
D [auth c1]	e6q9ec11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
N [auth c2]	e6q9ec21	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
A [auth a1]	e6q9ea11	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)
K [auth a3]	e6q9ea31	A: alpha arrays	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F:	ECOD (v295.2)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth a2], L [auth a4]	Ubiquinol-cytochrome c reductase core protein 2	-	-	-
C [auth b1], M [auth b2]	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	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds ATP synthesis coupled electron transport electron transport chain generation of precursor metabolites and energy mitochondrial electron transport, ubiquinol to cytochrome c respiratory electron transport chain metabolic process cellular process mitochondrial ATP synthesis coupled electron transport	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope cellular anatomical structure organelle mitochondrial envelope cytoplasm organelle membrane respiratory chain complex protein-containing complex catalytic complex cytochrome complex membrane protein complex transporter complex respiratory chain complex III transmembrane transporter complex oxidoreductase complex
E [auth f1], O [auth f2]	Cytochrome b-c1 complex subunit Rieske, mitochondrial	-	-	-
F [auth d1], P [auth d2]	Cytochrome b-c1 complex subunit 7	-	-	-
G [auth q1], Q [auth q2]	Ubiquinol-cytochrome c reductase complex III subunit VII	-	-	-
J [auth i1], T [auth i2]	Ubiquinol-cytochrome c reductase, complex III subunit X	-	-	-
I [auth x1], S [auth x2]	Cytochrome b-c1 complex subunit Rieske, mitochondrial	-	-	-
H [auth h1], R [auth h2]	Cytochrome b-c1 complex subunit 6	-	-	-
D [auth c1], N [auth c2]	Cytochrome c1	-	-	-
A [auth a1], K [auth a3]	Ubiquinol-cytochrome c reductase core protein 1	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth a2], L [auth a4]	IPR007863	Peptidase M16, C-terminal	Domain
B [auth a2], L [auth a4]	IPR011765	Peptidase M16, N-terminal	Domain
B [auth a2], L [auth a4]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
B [auth a2], L [auth a4]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family
B [auth a2], L [auth a4]	IPR001431	Peptidase M16, zinc-binding site	Binding Site
C [auth b1], M [auth b2]	IPR036150	Cytochrome b/b6, C-terminal domain superfamily	Homologous Superfamily
C [auth b1], M [auth b2]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
C [auth b1], M [auth b2]	IPR048260	Cytochrome b/b6, C-terminal domain, eukaryotic/bacterial	Domain
C [auth b1], M [auth b2]	IPR016174	Di-haem cytochrome, transmembrane	Homologous Superfamily
C [auth b1], M [auth b2]	IPR005798	Cytochrome b/b6, C-terminal	Domain
C [auth b1], M [auth b2]	IPR048259	Cytochrome b/b6, N-terminal domain, eukaryotic/bacterial	Domain
C [auth b1], M [auth b2]	IPR030689	Cytochrome b	Family
C [auth b1], M [auth b2]	IPR005797	Cytochrome b/b6, N-terminal domain	Domain
E [auth f1], O [auth f2]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
E [auth f1], O [auth f2]	IPR005805	Rieske iron-sulphur protein, C-terminal	Domain
E [auth f1], O [auth f2]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
E [auth f1], O [auth f2]	IPR037008	Cytochrome bc1 complex subunit Rieske, transmembrane domain superfamily	Homologous Superfamily
E [auth f1], O [auth f2]	IPR014349	Rieske iron-sulphur protein	Family
E [auth f1], O [auth f2]	IPR006317	Ubiquinol-cytochrome c reductase, iron-sulphur subunit	Domain
E [auth f1], O [auth f2]	IPR011070	Globular protein, non-globular alpha/beta subunit	Homologous Superfamily
E [auth f1], O [auth f2]	IPR004192	Cytochrome b-c1 complex subunit Rieske, transmembrane domain	Domain
E [auth f1], O [auth f2]	IPR015248	Ubiquinol-cytochrome c reductase iron-sulphur subunit, N-terminal	Domain
F [auth d1], P [auth d2]	IPR003197	Cytochrome b-c1 complex subunit 7	Family
F [auth d1], P [auth d2]	IPR036544	Cytochrome b-c1 complex subunit 7 superfamily	Homologous Superfamily
G [auth q1], Q [auth q2]	IPR004205	Cytochrome b-c1 complex subunit 8	Family
G [auth q1], Q [auth q2]	IPR036642	Cytochrome b-c1 complex subunit 8 superfamily	Homologous Superfamily
J [auth i1], T [auth i2]	IPR008027	Cytochrome b-c1 complex subunit 9	Family
J [auth i1], T [auth i2]	IPR036656	Cytochrome b-c1 complex subunit 9 superfamily	Homologous Superfamily
H [auth h1], R [auth h2]	IPR003422	Cytochrome b-c1 complex, subunit 6	Family
H [auth h1], R [auth h2]	IPR023184	Ubiquinol-cytochrome C reductase hinge domain	Domain
H [auth h1], R [auth h2]	IPR036811	Ubiquinol-cytochrome C reductase hinge domain superfamily	Homologous Superfamily
D [auth c1], N [auth c2]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
D [auth c1], N [auth c2]	IPR002326	Cytochrome c1	Family
D [auth c1], N [auth c2]	IPR009056	Cytochrome c-like domain	Domain
D [auth c1], N [auth c2]	IPR021157	Cytochrome c1, transmembrane anchor, C-terminal	Homologous Superfamily
A [auth a1], K [auth a3]	IPR007863	Peptidase M16, C-terminal	Domain
A [auth a1], K [auth a3]	IPR011765	Peptidase M16, N-terminal	Domain
A [auth a1], K [auth a3]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
A [auth a1], K [auth a3]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth a1], B [auth a2], C [auth b1], D [auth c1], E [auth f1] A [auth a1], B [auth a2], C [auth b1], D [auth c1], E [auth f1], F [auth d1], G [auth q1], H [auth h1], J [auth i1], K [auth a3], L [auth a4], M [auth b2], N [auth c2], O [auth f2], P [auth d2], Q [auth q2], R [auth h2], T [auth i2]	OPM	Transmembrane	Alpha-helical polytopic	Electron transport chain complex III (bc1 and b6f) superfamily	Cytochrome bc1 and b6f complexes

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth a1], B [auth a2], C [auth b1], D [auth c1], E [auth f1] A [auth a1], B [auth a2], C [auth b1], D [auth c1], E [auth f1], F [auth d1], G [auth q1], H [auth h1], J [auth i1], K [auth a3], L [auth a4], M [auth b2], N [auth c2], O [auth f2], P [auth d2], Q [auth q2], R [auth h2], T [auth i2]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Electron Transport Chain Supercomplexes (Respirasome)	Electron Transport Chain (ETC) Super Complex I+III₂, closed class

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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.