Annotations: 9ZFS

CryoEM structure of respiratory complex III intermediate from Acanthamoeba castellanii

External Resource: Annotation

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

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
F [auth A], O [auth N]	PF02320	Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge)	Ubiquinol-cytochrome C reductase hinge protein	The ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multienzyme complex [1]. This Pfam family represents the 'hinge' protein of the complex which is thought to mediate formation of the cytochrome c1 and cytochrome c ...	The ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multienzyme complex [1]. This Pfam family represents the 'hinge' protein of the complex which is thought to mediate formation of the cytochrome c1 and cytochrome c complex.	Domain
C [auth J], L [auth H]	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
C [auth J], L [auth H]	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family
A [auth B], J [auth C]	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 [auth B], J [auth C]	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
B [auth E], K [auth F]	Cytochrome b-c1 complex subunit 8	-	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 nucleus
I [auth L], R [auth W]	Cytochrome b-c1 complex subunit 10	-	-	-
H [auth Q], Q [auth T]	Cytochrome b	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	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
G, P [auth R]	Cytochrome c1, heme protein	-	-	-
F [auth A], O [auth N]	Cytochrome b-c1 complex subunit 6	-	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
E [auth O], N [auth K]	Cytochrome b-c1 complex subunit 9	-	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 respiratory chain complex protein-containing complex catalytic complex cytochrome complex membrane membrane protein complex membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle respiratory chain complex protein-containing complex catalytic complex cytochrome complex membrane membrane protein complex transporter complex respiratory chain complex III transmembrane transporter complex oxidoreductase complex
D [auth M], M [auth I]	Ubiquinolcytochrome c reductase complex 14 kDa protein	-	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
C [auth J], L [auth H]	mitochondrial processing peptidase,Mitochondrial-processing peptidase subunit beta	peptidase activity signal peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity endopeptidase activity cation binding ion binding binding metal ion binding small molecule binding metalloendopeptidase activity metallopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	membrane-bounded organelle intracellular anatomical structure mitochondrion membrane-enclosed lumen intracellular membrane-bounded organelle mitochondrial matrix intracellular organelle lumen intracellular organelle cellular anatomical structure organelle lumen organelle cytoplasm
A [auth B], J [auth C]	Peptidase M16 family protein	cation 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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth E], K [auth F]	IPR004205	Cytochrome b-c1 complex subunit 8	Family
B [auth E], K [auth F]	IPR036642	Cytochrome b-c1 complex subunit 8 superfamily	Homologous Superfamily
B [auth E], K [auth F]	IPR045107	SAC3/GANP/THP3	Family
B [auth E], K [auth F]	IPR005062	SAC3/GANP/THP3, conserved domain	Domain
H [auth Q], Q [auth T]	IPR036150	Cytochrome b/b6, C-terminal domain superfamily	Homologous Superfamily
H [auth Q], Q [auth T]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
H [auth Q], Q [auth T]	IPR016174	Di-haem cytochrome, transmembrane	Homologous Superfamily
H [auth Q], Q [auth T]	IPR005798	Cytochrome b/b6, C-terminal	Domain
H [auth Q], Q [auth T]	IPR048259	Cytochrome b/b6, N-terminal domain, eukaryotic/bacterial	Domain
H [auth Q], Q [auth T]	IPR030689	Cytochrome b	Family
H [auth Q], Q [auth T]	IPR048260	Cytochrome b/b6, C-terminal domain, eukaryotic/bacterial	Domain
H [auth Q], Q [auth T]	IPR005797	Cytochrome b/b6, N-terminal domain	Domain
F [auth A], O [auth N]	IPR003422	Cytochrome b-c1 complex, subunit 6	Family
F [auth A], O [auth N]	IPR023184	Ubiquinol-cytochrome C reductase hinge domain	Domain
F [auth A], O [auth N]	IPR036811	Ubiquinol-cytochrome C reductase hinge domain superfamily	Homologous Superfamily
E [auth O], N [auth K]	IPR036656	Cytochrome b-c1 complex subunit 9 superfamily	Homologous Superfamily
D [auth M], M [auth I]	IPR003197	Cytochrome b-c1 complex subunit 7	Family
D [auth M], M [auth I]	IPR036544	Cytochrome b-c1 complex subunit 7 superfamily	Homologous Superfamily
C [auth J], L [auth H]	IPR007863	Peptidase M16, C-terminal	Domain
C [auth J], L [auth H]	IPR011765	Peptidase M16, N-terminal	Domain
C [auth J], L [auth H]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
C [auth J], L [auth H]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family
C [auth J], L [auth H]	IPR001431	Peptidase M16, zinc-binding site	Binding Site
A [auth B], J [auth C]	IPR007863	Peptidase M16, C-terminal	Domain
A [auth B], J [auth C]	IPR011765	Peptidase M16, N-terminal	Domain
A [auth B], J [auth C]	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
A [auth B], J [auth C]	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family

9ZFS | pdb_00009zfs

CryoEM structure of respiratory complex III intermediate from Acanthamoeba castellanii

External Resource: Annotation

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage