Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
BSCOP2B SuperfamilyCytochrome c 8099084 3000815 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2B (2022-06-29)
HSCOP2B SuperfamilyCytochrome c 8099084 3000815 SCOP2B (2022-06-29)
HSCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2B (2022-06-29)
KSCOP2B SuperfamilyCytochrome c 8099084 3000815 SCOP2B (2022-06-29)
KSCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyCytochrome c 8099084 3000815 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyCytochrome c1 subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase), transmembrane anchor 8101132 3000762 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)
LSCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
LSCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)
ISCOP2B SuperfamilyISP transmembrane anchor 8052868 3000753 SCOP2B (2022-06-29)
ISCOP2B SuperfamilyISP domain 8052870 3000233 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ACytochrom_B_Ce2qjpA3 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_Be2qjpA2 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)
DCytochrom_B_Ce2qjpD3 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)
DCytochrome_Be2qjpD2 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)
JCytochrom_B_Ce2qjpJ3 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)
JCytochrome_Be2qjpJ2 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)
GCytochrom_B_Ce2qjpG3 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)
GCytochrome_Be2qjpG2 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_Ne2qjpB1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
HCytochrom_C1_Ne2qjpH1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
KCytochrom_C1_Ne2qjpK1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
ECytochrom_C1_Ne2qjpE1 A: alpha arraysX: Cytochrome c-likeH: Cytochrome c (From Topology)T: Cytochrome cF: Cytochrom_C1_NECOD (1.6)
CRieske_cytochrome_bc1e2qjpC3 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
CRieske_6e2qjpC1 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
CUCR_Fe-S_Ne2qjpC2 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)
FRieske_cytochrome_bc1e2qjpF3 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
FRieske_6e2qjpF1 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
FUCR_Fe-S_Ne2qjpF2 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)
LRieske_cytochrome_bc1e2qjpL3 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
LRieske_6e2qjpL1 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
LUCR_Fe-S_Ne2qjpL2 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)
IRieske_cytochrome_bc1e2qjpI3 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_bc1ECOD (1.6)
IRieske_6e2qjpI1 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_6ECOD (1.6)
IUCR_Fe-S_Ne2qjpI2 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)
D1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (4.3.0)
J1.20.810.10 Mainly Alpha Up-down Bundle Cytochrome Bc1 Complex Chain CCATH (4.3.0)
G1.20.810.10 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)
H1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (4.3.0)
H1.20.5.100 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)
K1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (4.3.0)
K1.20.5.100 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)
E1.10.760.10 Mainly Alpha Orthogonal Bundle Cytochrome Bc1 Complex Chain D, domain 2CATH (4.3.0)
E1.20.5.100 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)
F1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix binCATH (4.3.0)
F2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
L1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix binCATH (4.3.0)
L2.102.10.10 Mainly Beta 3-layer Sandwich Rieske Iron-sulfur Protein Rieske [2Fe-2S] iron-sulphur domainCATH (4.3.0)
I1.20.5.510 Mainly Alpha Up-down Bundle Single alpha-helices involved in coiled-coils or other helix-helix interfaces Single helix binCATH (4.3.0)
I2.102.10.10 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, G, J
PF00032Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)Cytochrome b(C-terminal)/b6/petD- Domain
A, D, G, J
PF00033Cytochrome b/b6/petB (Cytochrome_B)Cytochrome b/b6/petB- Domain
B, E, H, K
PF02167Cytochrome C1 family (Cytochrom_C1)Cytochrome C1 family- Family
C, F, I, L
PF10399Ubiquitinol-cytochrome C reductase Fe-S subunit TAT signal (UCR_Fe-S_N)Ubiquitinol-cytochrome C reductase Fe-S subunit TAT signal- Motif
C, F, I, L
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, G, J
Cytochrome b
B, E, H, K
Cytochrome c1 -
C, F, I, L
Ubiquinol-cytochrome c reductase iron-sulfur subunit -