Annotations: 9OCU

High-resolution cryo-EM structure of the cytochrome bc complex (CIII2) from Bacillus subtilis (composite)

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
B, K [auth b]	PF00033	Cytochrome b/b6/petB (Cytochrome_B)	Cytochrome b/b6/petB		Domain
I, R [auth i]	PF08868	YugN-like family (YugN)	YugN-like family	This family of proteins related to B. subtilis YugN are functionally uncharacterised.	Domain
H, Q [auth h]	PF14141	YqzM-like protein (YqzM)	YqzM-like protein	-	Family
E, N [auth e]	PF11117	Protein of unknown function (DUF2626) (DUF2626)	Protein of unknown function (DUF2626)	-	Family
D, M [auth d]	PF10958	Protein of unknown function (DUF2759) (DUF2759)	Protein of unknown function (DUF2759)	-	Family
C, L [auth c]	PF00032	Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)	Cytochrome b(C-terminal)/b6/petD		Domain
C, L [auth c]	PF13442	Cytochrome C oxidase, cbb3-type, subunit III (Cytochrome_CBB3)	Cytochrome C oxidase, cbb3-type, subunit III		Domain
A, J [auth a]	PF00355	Rieske [2Fe-2S] domain (Rieske)	Rieske [2Fe-2S] domain	The rieske domain has a [2Fe-2S] centre. Two conserved cysteines coordinate one Fe ion, while the other Fe ion is coordinated by two conserved histidines. In hyperthermophilic archaea there is a SKTPCX(2-3)C motif at the C-terminus. The cysteines in ...	The rieske domain has a [2Fe-2S] centre. Two conserved cysteines coordinate one Fe ion, while the other Fe ion is coordinated by two conserved histidines. In hyperthermophilic archaea there is a SKTPCX(2-3)C motif at the C-terminus. The cysteines in this motif form a disulphide bridge, which stabilises the protein [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, K [auth b]	Menaquinol:cytochrome c reductase cytochrome b subunit	oxidoreductase activity catalytic activity electron transfer activity	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	cell periphery cellular anatomical structure plasma membrane membrane
G, P [auth g]	QcrG	-	-	-
I, R [auth i]	YlbA	-	-	-
H, Q [auth h]	YqzM	-	-	cell periphery cellular anatomical structure plasma membrane membrane
F, O [auth f]	QcrF	-	-	-
E, N [auth e]	YqgY	-	-	cell periphery cellular anatomical structure plasma membrane membrane
D, M [auth d]	YqgW	-	-	cell periphery cellular anatomical structure plasma membrane membrane
C, L [auth c]	Menaquinol:cytochrome c reductase cytochrome c subunit	oxidoreductase activity catalytic activity binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding	-	cell periphery cellular anatomical structure plasma membrane membrane
A, J [auth a]	Menaquinol:cytochrome c reductase iron-sulfur subunit	monooxygenase activity oxidoreductase activity catalytic activity oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding	-	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, K [auth b]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
B, K [auth b]	IPR016174	Di-haem cytochrome, transmembrane	Homologous Superfamily
B, K [auth b]	IPR005797	Cytochrome b/b6, N-terminal domain	Domain
I, R [auth i]	IPR014967	Uncharacterised protein family, YugN-like	Family
I, R [auth i]	IPR036491	YugN-like superfamily	Homologous Superfamily
H, Q [auth h]	IPR025416	YqzM-like protein	Family
E, N [auth e]	IPR020254	Protein of unknown function DUF2626	Family
D, M [auth d]	IPR024490	Protein of unknown function DUF2759	Family
C, L [auth c]	IPR036150	Cytochrome b/b6, C-terminal domain superfamily	Homologous Superfamily
C, L [auth c]	IPR027387	Cytochrome b/b6-like domain superfamily	Homologous Superfamily
C, L [auth c]	IPR005798	Cytochrome b/b6, C-terminal	Domain
C, L [auth c]	IPR036909	Cytochrome c-like domain superfamily	Homologous Superfamily
C, L [auth c]	IPR012049	Menaquinone:cytochrome c reductase, cytochrome b/c subunit	Family
C, L [auth c]	IPR009056	Cytochrome c-like domain	Domain
C, L [auth c]	IPR051811	Cytochrome c550/c551-like	Family
A, J [auth a]	IPR017941	Rieske [2Fe-2S] iron-sulphur domain	Domain
A, J [auth a]	IPR036922	Rieske [2Fe-2S] iron-sulphur domain superfamily	Homologous Superfamily
A, J [auth a]	IPR006311	Twin-arginine translocation pathway, signal sequence	Conserved Site
A, J [auth a]	IPR014349	Rieske iron-sulphur protein	Family