Annotations: 8BEP

Cryo-EM structure of the Arabidopsis thaliana I+III2 supercomplex (CIII MPP domain)

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
H [auth P]	Methyltransf_4	e8bepP1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Methyltransf_4	ECOD (v295.2)
D [auth F]	Methyltransf_4	e8bepF1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Methyltransf_4	ECOD (v295.2)
G [auth N]	Lipoprotein_18	e8bepN1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Lipoprotein_18	ECOD (v295.2)
C [auth D]	Lipoprotein_18	e8bepD1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Lipoprotein_18	ECOD (v295.2)
F [auth L]	Lipoprotein_18	e8bepL1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Lipoprotein_18	ECOD (v295.2)
B	Aminotran_1_2	e8bepB01	A: alpha arrays	X: Rossmann-like	H: Rossmann-related	T: FAD/NAD(P)-binding domain	F: Aminotran_1_2	ECOD (v295.2)
E [auth K]	Methyltransf_4	e8bepK1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Methyltransf_4	ECOD (v295.2)
A	Methyltransf_4	e8bepA1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Methyltransf_4	ECOD (v295.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C [auth D], G [auth N]	PF02921	Ubiquinol cytochrome reductase transmembrane region (UCR_TM)	Ubiquinol cytochrome reductase transmembrane region	-	Family
B, F [auth L]	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, F [auth L]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family
A, E [auth K]	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, E [auth K]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth F], H [auth P]	Cytochrome b-c1 complex subunit 7-2, mitochondrial	-	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 intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope 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 plastid
C [auth D], G [auth N]	Cytochrome b-c1 complex subunit Rieske-1, mitochondrial	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 iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding cation binding ion binding metal ion 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 intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope 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 plastid
B, F [auth L]	Probable mitochondrial-processing peptidase subunit beta, mitochondrial	oxidoreductase activity catalytic activity peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity endopeptidase activity signal peptidase activity cation binding transition metal ion binding zinc ion binding ion binding binding oxidoreductase activity catalytic activity peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity endopeptidase activity signal peptidase activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding	-	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane nucleus membrane-enclosed lumen intracellular membraneless organelle nucleolus intracellular organelle lumen organelle lumen membraneless organelle nuclear lumen respiratory chain complex protein-containing complex catalytic complex cytochrome complex membrane protein complex transporter complex respiratory chain complex III transmembrane transporter complex oxidoreductase complex cytosol organelle outer membrane bounding membrane of organelle mitochondrial outer membrane outer membrane plastid chloroplast plant-type vacuole vacuole mitochondrial matrix mitochondrial protein-containing complex peptidase complex mitochondrial processing peptidase complex endopeptidase complex external encapsulating structure plant-type cell wall extracellular region cell wall mitochondrial intermembrane space organelle envelope lumen
A, E [auth K]	Probable mitochondrial-processing peptidase subunit alpha-1, mitochondrial	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity cation binding metal ion binding	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope 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 plant-type vacuole vacuole mitochondrial protein-containing complex peptidase complex membrane-enclosed lumen mitochondrial matrix intracellular organelle lumen organelle lumen mitochondrial processing peptidase complex endopeptidase complex nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D [auth F], H [auth P]	IPR003197	Cytochrome b-c1 complex subunit 7	Family
D [auth F], H [auth P]	IPR036544	Cytochrome b-c1 complex subunit 7 superfamily	Homologous Superfamily
C [auth D], G [auth N]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
C [auth D], G [auth N]	IPR014349	Rieske iron-sulphur protein	Family
C [auth D], G [auth N]	IPR004192	Cytochrome b-c1 complex subunit Rieske, transmembrane domain	Domain
C [auth D], G [auth N]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
C [auth D], G [auth N]	IPR005805	Rieske iron-sulphur protein, C-terminal	Domain
C [auth D], G [auth N]	IPR006317	Ubiquinol-cytochrome c reductase, iron-sulphur subunit	Domain
B, F [auth L]	IPR007863	Peptidase M16, C-terminal	Domain
B, F [auth L]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
B, F [auth L]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family
B, F [auth L]	IPR011765	Peptidase M16, N-terminal	Domain
B, F [auth L]	IPR001431	Peptidase M16, zinc-binding site	Binding Site
A, E [auth K]	IPR007863	Peptidase M16, C-terminal	Domain
A, E [auth K]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
A, E [auth K]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family
A, E [auth K]	IPR011765	Peptidase M16, N-terminal	Domain
A, E [auth K]	IPR001431	Peptidase M16, zinc-binding site	Binding Site

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C [auth D], D [auth F], E [auth K] A, B, C [auth D], D [auth F], E [auth K], F [auth L], G [auth N], H [auth P]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Electron Transport Chain Supercomplexes (Respirasome)	Respiratory supercomplex I-III₂, Complete composition

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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.