Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor8101134 3000762 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCytochrome c8099394 3000815 SCOP2B (2022-06-29)
E [auth F]SCOP2B SuperfamilyCytochrome c8099394 3000815 SCOP2B (2022-06-29)
E [auth F]SCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor8101134 3000762 SCOP2B (2022-06-29)
K [auth P]SCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor8101134 3000762 SCOP2B (2022-06-29)
K [auth P]SCOP2B SuperfamilyCytochrome c8099394 3000815 SCOP2B (2022-06-29)
N [auth T]SCOP2B SuperfamilyCytochrome c8099394 3000815 SCOP2B (2022-06-29)
N [auth T]SCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor8101134 3000762 SCOP2B (2022-06-29)
H [auth L]SCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor8101134 3000762 SCOP2B (2022-06-29)
H [auth L]SCOP2B SuperfamilyCytochrome c8099394 3000815 SCOP2B (2022-06-29)
Q [auth X]SCOP2 FamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor8101133 4002056 SCOP2 (2022-06-29)
Q [auth X]SCOP2 FamilyCytochrome bc1 domain8099393 4000656 SCOP2 (2022-06-29)
Q [auth X]SCOP2 SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) transmembrane anchor8101134 3000762 SCOP2 (2022-06-29)
Q [auth X]SCOP2 SuperfamilyCytochrome c8099394 3000815 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF00032e6ninA1 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: PF00032ECOD (1.6)
APF00033e6ninA2 A: alpha bundlesX: Transmembrane heme-binding four-helical bundle (From Homology)H: Transmembrane heme-binding four-helical bundleT: Transmembrane di-heme cytochromesF: PF00033ECOD (1.6)
D [auth E]PF00032e6ninE1 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: PF00032ECOD (1.6)
D [auth E]PF00033e6ninE2 A: alpha bundlesX: Transmembrane heme-binding four-helical bundle (From Homology)H: Transmembrane heme-binding four-helical bundleT: Transmembrane di-heme cytochromesF: PF00033ECOD (1.6)
G [auth K]PF00032e6ninK1 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: PF00032ECOD (1.6)
G [auth K]PF00033e6ninK2 A: alpha bundlesX: Transmembrane heme-binding four-helical bundle (From Homology)H: Transmembrane heme-binding four-helical bundleT: Transmembrane di-heme cytochromesF: PF00033ECOD (1.6)
J [auth O]PF00032e6ninO1 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: PF00032ECOD (1.6)
J [auth O]PF00033e6ninO2 A: alpha bundlesX: Transmembrane heme-binding four-helical bundle (From Homology)H: Transmembrane heme-binding four-helical bundleT: Transmembrane di-heme cytochromesF: PF00033ECOD (1.6)
M [auth S]PF00032e6ninS1 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: PF00032ECOD (1.6)
M [auth S]PF00033e6ninS2 A: alpha bundlesX: Transmembrane heme-binding four-helical bundle (From Homology)H: Transmembrane heme-binding four-helical bundleT: Transmembrane di-heme cytochromesF: PF00033ECOD (1.6)
P [auth W]PF00032e6ninW2 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: PF00032ECOD (1.6)
P [auth W]PF00033e6ninW1 A: alpha bundlesX: Transmembrane heme-binding four-helical bundle (From Homology)H: Transmembrane heme-binding four-helical bundleT: Transmembrane di-heme cytochromesF: PF00033ECOD (1.6)
BPF02167e6ninB1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: PF02167ECOD (1.6)
E [auth F]PF02167e6ninF1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: PF02167ECOD (1.6)
K [auth P]PF02167e6ninP1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: PF02167ECOD (1.6)
N [auth T]PF02167e6ninT1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: PF02167ECOD (1.6)
H [auth L]PF02167e6ninL1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: PF02167ECOD (1.6)
Q [auth X]PF02167e6ninX1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: PF02167ECOD (1.6)
CF_UNCLASSIFIEDe6ninC1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: F_UNCLASSIFIEDECOD (1.6)
CPF00355e6ninC2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF00355ECOD (1.6)
CPF10399e6ninC3 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: PF10399ECOD (1.6)
I [auth M]F_UNCLASSIFIEDe6ninM1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: F_UNCLASSIFIEDECOD (1.6)
I [auth M]PF00355e6ninM2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF00355ECOD (1.6)
I [auth M]PF10399e6ninM3 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: PF10399ECOD (1.6)
O [auth U]F_UNCLASSIFIEDe6ninU2 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: F_UNCLASSIFIEDECOD (1.6)
O [auth U]PF00355e6ninU1 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF00355ECOD (1.6)
O [auth U]PF10399e6ninU3 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: PF10399ECOD (1.6)
R [auth Y]F_UNCLASSIFIEDe6ninY1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: F_UNCLASSIFIEDECOD (1.6)
R [auth Y]PF00355e6ninY2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF00355ECOD (1.6)
R [auth Y]PF10399e6ninY3 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: PF10399ECOD (1.6)
F [auth G]F_UNCLASSIFIEDe6ninG1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: F_UNCLASSIFIEDECOD (1.6)
F [auth G]PF00355e6ninG2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF00355ECOD (1.6)
F [auth G]PF10399e6ninG3 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: PF10399ECOD (1.6)
L [auth Q]F_UNCLASSIFIEDe6ninQ3 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: F_UNCLASSIFIEDECOD (1.6)
L [auth Q]PF00355e6ninQ2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: PF00355ECOD (1.6)
L [auth Q]PF10399e6ninQ1 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: PF10399ECOD (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 (utative)
D [auth E]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (utative)
G [auth K]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (utative)
J [auth O]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (utative)
M [auth S]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (utative)
P [auth W]1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (utative)
B1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (utative)
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 (utative)
E [auth F]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (utative)
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 (utative)
K [auth P]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (utative)
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 (utative)
N [auth T]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (utative)
N [auth T]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 (utative)
H [auth L]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (utative)
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 (utative)
Q [auth X]1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (utative)
Q [auth X]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 (utative)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00032Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)Cytochrome b(C-terminal)/b6/petD- Domain
PF00033Cytochrome b/b6/petB (Cytochrome_B)Cytochrome b/b6/petB- Domain
PF02167Cytochrome C1 family (Cytochrom_C1)Cytochrome C1 family- Family
PF10399Ubiquitinol-cytochrome C reductase Fe-S subunit TAT signal (UCR_Fe-S_N)Ubiquitinol-cytochrome C reductase Fe-S subunit TAT signal- Motif
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
Cytochrome b
Cytochrome c1 -
Ubiquinol-cytochrome c reductase iron-sulfur subunit -

InterPro: Protein Family Classification InterPro Database Homepage

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