Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
D [auth G]SCOP2 Family14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8104324 4002070 SCOP2 (2022-06-29)
D [auth G]SCOP2 Superfamily14 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8104325 3000797 SCOP2 (2022-06-29)
E [auth F]SCOP2B SuperfamilyUbiquinone-binding protein QP-C of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8104193 3000770 SCOP2B (2022-06-29)
F [auth H]SCOP2B SuperfamilyNon-heme 11 kDa protein of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8104195 3000806 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APeptidase_M16_Ce7rjcA2 A: a+b two layersX: LuxS, MPP, ThrRS/AlaRS common domainH: LuxS, MPP, ThrRS/AlaRS common domainT: LuxS/MPP-like metallohydrolaseF: Peptidase_M16_CECOD (1.6)
APeptidase_M16e7rjcA1 A: a+b two layersX: LuxS, MPP, ThrRS/AlaRS common domainH: LuxS, MPP, ThrRS/AlaRS common domainT: LuxS/MPP-like metallohydrolaseF: Peptidase_M16ECOD (1.6)
B [auth K]Cytochrom_B_Ce7rjcK2 A: alpha bundlesX: 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_CECOD (1.6)
B [auth K]Cytochrome_Be7rjcK1 A: alpha bundlesX: Transmembrane heme-binding four-helical bundle (From Homology)H: Transmembrane heme-binding four-helical bundleT: Transmembrane di-heme cytochromesF: Cytochrome_BECOD (1.6)
C [auth D]Cytochrom_C1_C,Cytochrom_C1_Ne7rjcD1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_C,Cytochrom_C1_NECOD (1.6)
D [auth G]UCR_14kDe7rjcG1 A: alpha arraysX: 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_14kDECOD (1.6)
E [auth F]UcrQe7rjcF1 A: extended segmentsX: 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: UcrQECOD (1.6)
F [auth H]UCR_hingee7rjcH1 A: alpha bundlesX: cytochrome bc1 complex 11 kDa protein-likeH: 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_hingeECOD (1.6)
G [auth I]UCR_UQCRX_QCR9e7rjcI1 A: extended segmentsX: 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_QCR9ECOD (1.6)
H [auth B]Peptidase_M16_Ce7rjcB2 A: a+b two layersX: LuxS, MPP, ThrRS/AlaRS common domainH: LuxS, MPP, ThrRS/AlaRS common domainT: LuxS/MPP-like metallohydrolaseF: Peptidase_M16_CECOD (1.6)
H [auth B]Peptidase_M16e7rjcB1 A: a+b two layersX: LuxS, MPP, ThrRS/AlaRS common domainH: LuxS, MPP, ThrRS/AlaRS common domainT: LuxS/MPP-like metallohydrolaseF: Peptidase_M16ECOD (1.6)
I [auth M]UCR_TMe7rjcM1 A: extended segmentsX: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)H: iron-sulfur subunit (ISP) transmembrane anchor (From Topology)T: iron-sulfur subunit (ISP) transmembrane anchorF: UCR_TMECOD (1.6)
J [auth E]Rieske_cytochrome_bc1e7rjcE1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
J [auth E]Rieske_6e7rjcE2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF05193Peptidase M16 inactive domain (Peptidase_M16_C)Peptidase M16 inactive domainPeptidase 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
PF00675Insulinase (Peptidase family M16) (Peptidase_M16)Insulinase (Peptidase family M16)- Family
B [auth K]PF00032Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)Cytochrome b(C-terminal)/b6/petD- Domain
B [auth K]PF00033Cytochrome b/b6/petB (Cytochrome_B)Cytochrome b/b6/petB- Domain
C [auth D]PF02167Cytochrome C1 family (Cytochrom_C1)Cytochrome C1 family- Family
D [auth G]PF02271Ubiquinol-cytochrome C reductase complex 14kD subunit (UCR_14kD)Ubiquinol-cytochrome C reductase complex 14kD subunit- Family
E [auth F]PF02939UcrQ family (UcrQ)UcrQ family- Family
F [auth H]PF02320Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge)Ubiquinol-cytochrome C reductase hinge protein- Family
G [auth I]PF05365Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like (UCR_UQCRX_QCR9)Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like- Family
H [auth B]PF05193Peptidase M16 inactive domain (Peptidase_M16_C)Peptidase M16 inactive domainPeptidase 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
H [auth B]PF00675Insulinase (Peptidase family M16) (Peptidase_M16)Insulinase (Peptidase family M16)- Family
I [auth M],
J [auth E]
PF00355Rieske [2Fe-2S] domain (Rieske)Rieske [2Fe-2S] domainThe 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

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Ubiquinol--cytochrome-c reductase subunit
B [auth K]Cytochrome b
C [auth D]Ubiquinol--cytochrome-c reductase catalytic subunit
D [auth G]Cytochrome b-c1 complex subunit 7
E [auth F]Ubiquinol--cytochrome-c reductase subunit 8-
F [auth H]Ubiquinol--cytochrome-c reductase subunit 6- -
G [auth I]Ubiquinol--cytochrome-c reductase subunit 9
H [auth B]Cytochrome b-c1 complex subunit 2, mitochondrial
I [auth M],
J [auth E]
Cytochrome b-c1 complex subunit Rieske, mitochondrial

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR007863Peptidase M16, C-terminalDomain
IPR011765Peptidase M16, N-terminalDomain
IPR011249Metalloenzyme, LuxS/M16 peptidase-likeHomologous Superfamily
IPR050361Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase ComplexFamily
B [auth K]IPR036150Cytochrome b/b6, C-terminal domain superfamilyHomologous Superfamily
B [auth K]IPR027387Cytochrome b/b6-like domain superfamilyHomologous Superfamily
B [auth K]IPR048260Cytochrome b/b6, C-terminal domain, eukaryotic/bacterialDomain
B [auth K]IPR016174Di-haem cytochrome, transmembraneHomologous Superfamily
B [auth K]IPR005798Cytochrome b/b6, C-terminalDomain
B [auth K]IPR048259Cytochrome b/b6, N-terminal domain, eukaryotic/bacterialDomain
B [auth K]IPR030689Cytochrome bFamily
B [auth K]IPR005797Cytochrome b/b6, N-terminal domainDomain
C [auth D]IPR036909Cytochrome c-like domain superfamilyHomologous Superfamily
C [auth D]IPR002326Cytochrome c1Family
C [auth D]IPR009056Cytochrome c-like domainDomain
C [auth D]IPR021157Cytochrome c1, transmembrane anchor, C-terminalHomologous Superfamily
D [auth G]IPR003197Cytochrome b-c1 complex subunit 7Family
D [auth G]IPR036544Cytochrome b-c1 complex subunit 7 superfamilyHomologous Superfamily
E [auth F]IPR004205Cytochrome b-c1 complex subunit 8Family
E [auth F]IPR036642Cytochrome b-c1 complex subunit 8 superfamilyHomologous Superfamily
F [auth H]IPR003422Cytochrome b-c1 complex, subunit 6Family
F [auth H]IPR023184Ubiquinol-cytochrome C reductase hinge domainDomain
F [auth H]IPR036811Ubiquinol-cytochrome C reductase hinge domain superfamilyHomologous Superfamily
G [auth I]IPR008027Cytochrome b-c1 complex subunit 9Family
G [auth I]IPR036656Cytochrome b-c1 complex subunit 9 superfamilyHomologous Superfamily
H [auth B]IPR007863Peptidase M16, C-terminalDomain
H [auth B]IPR011765Peptidase M16, N-terminalDomain
H [auth B]IPR011249Metalloenzyme, LuxS/M16 peptidase-likeHomologous Superfamily
H [auth B]IPR050361Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase ComplexFamily
I [auth M],
J [auth E]
IPR036922Rieske [2Fe-2S] iron-sulphur domain superfamilyHomologous Superfamily
I [auth M],
J [auth E]
IPR014349Rieske iron-sulphur proteinFamily
I [auth M],
J [auth E]
IPR004192Cytochrome b-c1 complex subunit Rieske, transmembrane domainDomain
I [auth M],
J [auth E]
IPR017941Rieske [2Fe-2S] iron-sulphur domainDomain
I [auth M],
J [auth E]
IPR005805Rieske iron-sulphur protein, C-terminalDomain
I [auth M],
J [auth E]
IPR037008Cytochrome bc1 complex subunit Rieske, transmembrane domain superfamilyHomologous Superfamily
I [auth M],
J [auth E]
IPR006317Ubiquinol-cytochrome c reductase, iron-sulphur subunitDomain