Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2 FamilyCytochrome bc1 domain 8099083 4000656 SCOP2 (2022-06-29)
BSCOP2 FamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101131 4002056 SCOP2 (2022-06-29)
BSCOP2 SuperfamilyCytochrome c 8099084 3000815 SCOP2 (2022-06-29)
BSCOP2 SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2 (2022-06-29)
E [auth F]SCOP2B SuperfamilyCytochrome c 8099084 3000815 SCOP2B (2022-06-29)
E [auth F]SCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2B (2022-06-29)
H [auth L]SCOP2B SuperfamilyCytochrome c 8099084 3000815 SCOP2B (2022-06-29)
H [auth L]SCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2B (2022-06-29)
K [auth P]SCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2B (2022-06-29)
K [auth P]SCOP2B SuperfamilyCytochrome c 8099084 3000815 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
F [auth G]SCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)
F [auth G]SCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
I [auth M]SCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)
I [auth M]SCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
L [auth Q]SCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
L [auth Q]SCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ACytochrom_B_Ce5kliA2 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)
ACytochrome_Be5kliA1 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)
D [auth E]Cytochrom_B_Ce5kliE2 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)
D [auth E]Cytochrome_Be5kliE1 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)
G [auth K]Cytochrom_B_Ce5kliK1 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)
G [auth K]Cytochrome_Be5kliK2 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)
J [auth O]Cytochrom_B_Ce5kliO1 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)
J [auth O]Cytochrome_Be5kliO2 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)
BCytochrom_C1_Ne5kliB1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
E [auth F]Cytochrom_C1_Ne5kliF1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
H [auth L]Cytochrom_C1_Ne5kliL1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
K [auth P]Cytochrom_C1_Ne5kliP1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
CRieske_cytochrome_bc1e5kliC2 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
CRieske_6e5kliC3 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
CUCR_Fe-S_Ne5kliC1 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_Fe-S_NECOD (1.6)
F [auth G]Rieske_cytochrome_bc1e5kliG1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
F [auth G]Rieske_6e5kliG3 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
F [auth G]UCR_Fe-S_Ne5kliG2 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_Fe-S_NECOD (1.6)
I [auth M]Rieske_cytochrome_bc1e5kliM2 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
I [auth M]Rieske_6e5kliM3 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
I [auth M]UCR_Fe-S_Ne5kliM1 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_Fe-S_NECOD (1.6)
L [auth Q]Rieske_cytochrome_bc1e5kliQ1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
L [auth Q]Rieske_6e5kliQ3 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
L [auth Q]UCR_Fe-S_Ne5kliQ2 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_Fe-S_NECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (4.3.0)
D [auth E]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (4.3.0)
G [auth K]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (4.3.0)
J [auth O]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (4.3.0)
B1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (4.3.0)
B1.20.5.100 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Cytochrome c1, transmembrane anchor, C-terminalCATH (4.3.0)
E [auth F]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (4.3.0)
E [auth F]1.20.5.100 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Cytochrome c1, transmembrane anchor, C-terminalCATH (4.3.0)
H [auth L]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (4.3.0)
H [auth L]1.20.5.100 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Cytochrome c1, transmembrane anchor, C-terminalCATH (4.3.0)
K [auth P]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (4.3.0)
K [auth P]1.20.5.100 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Cytochrome c1, transmembrane anchor, C-terminalCATH (4.3.0)
C1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix binCATH (4.3.0)
C2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
F [auth G]1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix binCATH (4.3.0)
F [auth G]2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
I [auth M]1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix binCATH (4.3.0)
I [auth M]2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
L [auth Q]1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix binCATH (4.3.0)
L [auth Q]2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A,
D [auth E],
G [auth K],
J [auth O]
PF00032Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)Cytochrome b(C-terminal)/b6/petD- Domain
A,
D [auth E],
G [auth K],
J [auth O]
PF00033Cytochrome b/b6/petB (Cytochrome_B)Cytochrome b/b6/petB- Domain
B,
E [auth F],
H [auth L],
K [auth P]
PF02167Cytochrome C1 family (Cytochrom_C1)Cytochrome C1 family- Family
C,
F [auth G],
I [auth M],
L [auth Q]
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
A,
D [auth E],
G [auth K],
J [auth O]
Cytochrome b
B,
E [auth F],
H [auth L],
K [auth P]
Cytochrome c1 -
C,
F [auth G],
I [auth M],
L [auth Q]
Ubiquinol-cytochrome c reductase iron-sulfur subunit -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A,
D [auth E],
G [auth K],
J [auth O]
IPR036150Cytochrome b/b6, C-terminal domain superfamilyHomologous Superfamily
A,
D [auth E],
G [auth K],
J [auth O]
IPR027387Cytochrome b/b6-like domain superfamilyHomologous Superfamily
A,
D [auth E],
G [auth K],
J [auth O]
IPR048260Cytochrome b/b6, C-terminal domain, eukaryotic/bacterialDomain
A,
D [auth E],
G [auth K],
J [auth O]
IPR016174Di-haem cytochrome, transmembraneHomologous Superfamily
A,
D [auth E],
G [auth K],
J [auth O]
IPR005798Cytochrome b/b6, C-terminalDomain
A,
D [auth E],
G [auth K],
J [auth O]
IPR048259Cytochrome b/b6, N-terminal domain, eukaryotic/bacterialDomain
A,
D [auth E],
G [auth K],
J [auth O]
IPR030689Cytochrome bFamily
A,
D [auth E],
G [auth K],
J [auth O]
IPR005797Cytochrome b/b6, N-terminal domainDomain
B,
E [auth F],
H [auth L],
K [auth P]
IPR036909Cytochrome c-like domain superfamilyHomologous Superfamily
B,
E [auth F],
H [auth L],
K [auth P]
IPR002326Cytochrome c1Family
B,
E [auth F],
H [auth L],
K [auth P]
IPR009056Cytochrome c-like domainDomain
C,
F [auth G],
I [auth M],
L [auth Q]
IPR017941Rieske [2Fe-2S] iron-sulphur domainDomain
C,
F [auth G],
I [auth M],
L [auth Q]
IPR005805Rieske iron-sulphur protein, C-terminalDomain
C,
F [auth G],
I [auth M],
L [auth Q]
IPR036922Rieske [2Fe-2S] iron-sulphur domain superfamilyHomologous Superfamily
C,
F [auth G],
I [auth M],
L [auth Q]
IPR006311Twin-arginine translocation pathway, signal sequenceConserved Site
C,
F [auth G],
I [auth M],
L [auth Q]
IPR014349Rieske iron-sulphur proteinFamily
C,
F [auth G],
I [auth M],
L [auth Q]
IPR019470Ubiquitinol-cytochrome C reductase, Fe-S subunit, TAT signalDomain
C,
F [auth G],
I [auth M],
L [auth Q]
IPR006317Ubiquinol-cytochrome c reductase, iron-sulphur subunitDomain
C,
F [auth G],
I [auth M],
L [auth Q]
IPR019546Twin-arginine translocation pathway, signal sequence, bacterial/archaealConserved Site