Annotations: 7JRG

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Peptidase_M16_C	e7jrgB2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16_C	ECOD (1.6)
B	Peptidase_M16	e7jrgB1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16	ECOD (1.6)
L [auth N]	Peptidase_M16_C	e7jrgN1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16_C	ECOD (1.6)
L [auth N]	Peptidase_M16	e7jrgN2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: Peptidase_M16	ECOD (1.6)
C	Cytochrom_B_C	e7jrgC2	A: alpha bundles	X: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: Cytochrom_B_C	ECOD (1.6)
C	Cytochrome_B	e7jrgC1	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: Cytochrome_B	ECOD (1.6)
M [auth O]	Cytochrom_B_C	e7jrgO1	A: alpha bundles	X: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: Cytochrom_B_C	ECOD (1.6)
M [auth O]	Cytochrome_B	e7jrgO2	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: Cytochrome_B	ECOD (1.6)
D	Cytochrom_C1_N	e7jrgD2	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C1_N	ECOD (1.6)
D	Cytochrom_C1_C	e7jrgD1	A: extended segments	X: cytochrome c1 transmembrane anchor (From Topology)	H: cytochrome c1 transmembrane anchor (From Topology)	T: cytochrome c1 transmembrane anchor	F: Cytochrom_C1_C	ECOD (1.6)
N [auth P]	Cytochrom_C1_N	e7jrgP2	A: alpha arrays	X: Cytochrome c-like	H: Cytochrome c (From Topology)	T: Cytochrome c	F: Cytochrom_C1_N	ECOD (1.6)
N [auth P]	Cytochrom_C1_C	e7jrgP1	A: extended segments	X: cytochrome c1 transmembrane anchor (From Topology)	H: cytochrome c1 transmembrane anchor (From Topology)	T: cytochrome c1 transmembrane anchor	F: Cytochrom_C1_C	ECOD (1.6)
E	UCR_TM	e7jrgE1	A: extended segments	X: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	H: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	T: iron-sulfur subunit (ISP) transmembrane anchor	F: UCR_TM	ECOD (1.6)
O [auth Q]	UCR_TM	e7jrgQ1	A: extended segments	X: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	H: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)	T: iron-sulfur subunit (ISP) transmembrane anchor	F: UCR_TM	ECOD (1.6)
F	UCR_14kD	e7jrgF1	A: alpha arrays	X: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_14kD	ECOD (1.6)
P [auth R]	UCR_14kD	e7jrgR1	A: alpha arrays	X: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: 14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_14kD	ECOD (1.6)
G	UcrQ	e7jrgG1	A: extended segments	X: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UcrQ	ECOD (1.6)
Q [auth S]	UcrQ	e7jrgS1	A: extended segments	X: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Ubiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UcrQ	ECOD (1.6)
H	UCR_hinge	e7jrgH1	A: alpha bundles	X: cytochrome bc1 complex 11 kDa protein-like	H: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_hinge	ECOD (1.6)
R [auth T]	UCR_hinge	e7jrgT1	A: alpha bundles	X: cytochrome bc1 complex 11 kDa protein-like	H: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Non-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_hinge	ECOD (1.6)
I [auth J]	UCR_UQCRX_QCR9	e7jrgJ1	A: extended segments	X: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_UQCRX_QCR9	ECOD (1.6)
S [auth V]	UCR_UQCRX_QCR9	e7jrgV1	A: extended segments	X: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	H: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) (From Topology)	T: Subunit X (non-heme 7 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase)	F: UCR_UQCRX_QCR9	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, K [auth M]	PF05193	Peptidase M16 inactive domain (Peptidase_M16_C)	Peptidase M16 inactive domain	Peptidase M16 consists of two structurally related domains. One is the active peptidase, whereas the other is inactive. The two domains hold the substrate like a clamp [1].	Domain
A, K [auth M]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family
B, L [auth N]	PF05193	Peptidase M16 inactive domain (Peptidase_M16_C)	Peptidase M16 inactive domain	Peptidase M16 consists of two structurally related domains. One is the active peptidase, whereas the other is inactive. The two domains hold the substrate like a clamp [1].	Domain
B, L [auth N]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family
D, N [auth P]	PF02167	Cytochrome C1 family (Cytochrom_C1)	Cytochrome C1 family	-	Family
E, O [auth Q]	PF02921	Ubiquinol cytochrome reductase transmembrane region (UCR_TM)	Ubiquinol cytochrome reductase transmembrane region	-	Family
F, P [auth R]	PF02271	Ubiquinol-cytochrome C reductase complex 14kD subunit (UCR_14kD)	Ubiquinol-cytochrome C reductase complex 14kD subunit	-	Family
G, Q [auth S]	PF10890	Cytochrome b-c1 complex subunit 8 (Cyt_b-c1_8)	Cytochrome b-c1 complex subunit 8	-	Family
H, R [auth T]	PF02320	Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge)	Ubiquinol-cytochrome C reductase hinge protein	-	Family
I [auth J], S [auth V]	PF05365	Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like (UCR_UQCRX_QCR9)	Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, K [auth M]	Mitochondrial-processing peptidase subunit beta, mitochondrial isoform X1	cation binding ion binding binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle
B, L [auth N]	Alpha-MPP	cation binding ion binding binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity	organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle
C, M [auth O]	COB	-	-	-
D, N [auth P]	cytochrome c1-2, heme protein, mitochondrial	binding organic cyclic compound binding tetrapyrrole binding heme binding electron transfer activity cation binding ion binding metal ion binding small molecule binding	-	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope mitochondrial envelope organelle cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope mitochondrial envelope organelle cytoplasm organelle membrane
E, O [auth Q]	Cytochrome b-c1 complex subunit Rieske, mitochondrial	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 inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity ubiquinol-cytochrome-c reductase 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 oxidoreductase activity electron transfer activity active monoatomic ion transmembrane transporter activity oxidoreduction-driven active transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity ubiquinol-cytochrome-c reductase 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	-	membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope mitochondrial envelope organelle cytoplasm membrane-bounded organelle mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane intracellular organelle organelle envelope mitochondrial envelope organelle cytoplasm organelle membrane respirasome
F, P [auth R]	Cytochrome b-c1 complex subunit 7	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle organelle envelope oxidoreductase complex mitochondrial protein-containing complex catalytic complex membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane inner mitochondrial membrane protein complex transmembrane transporter complex mitochondrial envelope organelle respirasome cytoplasm organelle membrane
G, Q [auth S]	cytochrome b-c1 complex subunit 8	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle organelle envelope oxidoreductase complex mitochondrial protein-containing complex catalytic complex membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane inner mitochondrial membrane protein complex transmembrane transporter complex mitochondrial envelope organelle respirasome cytoplasm organelle membrane
H, R [auth T]	Cytochrome b-c1 complex subunit 6	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle organelle envelope oxidoreductase complex mitochondrial protein-containing complex catalytic complex membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane inner mitochondrial membrane protein complex transmembrane transporter complex mitochondrial envelope organelle respirasome cytoplasm organelle membrane
I [auth J], S [auth V]	cytochrome b-c1 complex subunit 9	-	aerobic respiration cellular respiration aerobic electron transport chain oxidative phosphorylation energy derivation by oxidation of organic compounds cellular metabolic process 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 respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle membrane-bounded organelle respiratory chain complex protein-containing complex mitochondrial respiratory chain complex III mitochondrial membrane intracellular anatomical structure organelle inner membrane mitochondrion cytochrome complex mitochondrial respirasome membrane protein complex transporter complex respiratory chain complex III intracellular organelle organelle envelope oxidoreductase complex mitochondrial protein-containing complex catalytic complex membrane cellular anatomical entity intracellular membrane-bounded organelle mitochondrial inner membrane inner mitochondrial membrane protein complex transmembrane transporter complex mitochondrial envelope organelle respirasome cytoplasm organelle membrane
J [auth K], T [auth W]	QCR10	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, K [auth M]	IPR007863	Peptidase M16, C-terminal	Domain
A, K [auth M]	IPR011765	Peptidase M16, N-terminal	Domain
A, K [auth M]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
A, K [auth M]	IPR001431	Peptidase M16, zinc-binding site	Binding Site
B, L [auth N]	IPR007863	Peptidase M16, C-terminal	Domain
B, L [auth N]	IPR011765	Peptidase M16, N-terminal	Domain
B, L [auth N]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
B, L [auth N]	IPR001431	Peptidase M16, zinc-binding site	Binding Site
D, N [auth P]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
D, N [auth P]	IPR002326	Cytochrome c1	Family
D, N [auth P]	IPR009056	Cytochrome c-like domain	Domain
D, N [auth P]	IPR021157	Cytochrome c1, transmembrane anchor, C-terminal	Homologous Superfamily
E, O [auth Q]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
E, O [auth Q]	IPR005805	Rieske iron-sulphur protein, C-terminal	Domain
E, O [auth Q]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
E, O [auth Q]	IPR014349	Rieske iron-sulphur protein	Family
E, O [auth Q]	IPR006317	Ubiquinol-cytochrome c reductase, iron-sulphur subunit	Domain
E, O [auth Q]	IPR004192	Cytochrome b-c1 complex subunit Rieske, transmembrane domain	Domain
F, P [auth R]	IPR003197	Cytochrome b-c1 complex subunit 7	Family
F, P [auth R]	IPR036544	Cytochrome b-c1 complex subunit 7 superfamily	Homologous Superfamily
G, Q [auth S]	IPR036642	Cytochrome b-c1 complex subunit 8 superfamily	Homologous Superfamily
G, Q [auth S]	IPR020101	Cytochrome b-c1 complex subunit 8, plants	Family
H, R [auth T]	IPR003422	Cytochrome b-c1 complex, subunit 6	Family
H, R [auth T]	IPR023184	Ubiquinol-cytochrome C reductase hinge domain	Domain
H, R [auth T]	IPR036811	Ubiquinol-cytochrome C reductase hinge domain superfamily	Homologous Superfamily
I [auth J], S [auth V]	IPR008027	Cytochrome b-c1 complex subunit 9	Family
I [auth J], S [auth V]	IPR036656	Cytochrome b-c1 complex subunit 9 superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
D, E, F, G, H D, E, F, G, H, I [auth J], N [auth P], O [auth Q], P [auth R], Q [auth S], R [auth T], S [auth V]	OPM	Transmembrane	Alpha-helical polytopic	Electron transport chain complex III (bc1 and b6f) superfamily	Cytochrome bc1 and b6f complexes

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
D, E, F, G, H D, E, F, G, H, I [auth J], N [auth P], O [auth Q], P [auth R], Q [auth S], R [auth T], S [auth V]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
D, E, F, G, H D, E, F, G, H, I [auth J], N [auth P], O [auth Q], P [auth R], Q [auth S], R [auth T], S [auth V]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
D, E, F, G, H D, E, F, G, H, I [auth J], N [auth P], O [auth Q], P [auth R], Q [auth S], R [auth T], S [auth V]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Electron Transport Chain Supercomplexes (Respirasome)	Respiratory supercomplex III₂-IV