Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1q90a1 All beta proteins Common fold of diphtheria toxin/transcription factors/cytochrome f Cytochrome f, large domain Cytochrome f, large domain Cytochrome f, large domain (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
Ad1q90a2 All beta proteins Barrel-sandwich hybrid Rudiment single hybrid motif Cytochrome f, small domain Cytochrome f, small domain (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
Ad1q90a3 Membrane and cell surface proteins and peptides Single transmembrane helix Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchor Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchor Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchor (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
Ad1q90a4 Artifacts Tags Tags Tags C-terminal Tags (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
Bd1q90b_ Membrane and cell surface proteins and peptides Heme-binding four-helical bundle Transmembrane di-heme cytochromes Cytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) Cytochrome b6 subunit of the cytochrome b6f complex (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
Cd1q90c_ All beta proteins ISP domain ISP domain Rieske iron-sulfur protein (ISP) ISP subunit from the cytochrome b6f complex, soluble domain (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
Dd1q90d_ Membrane and cell surface proteins and peptides a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) a domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) Subunit IV of the cytochrome b6f complex (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
E [auth R]d1q90r_ Membrane and cell surface proteins and peptides Single transmembrane helix ISP transmembrane anchor ISP transmembrane anchor ISP subunit from the cytochrome b6f complex, transmembrane anchor (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
F [auth G]d1q90g_ Membrane and cell surface proteins and peptides Single transmembrane helix PetG subunit of the cytochrome b6f complex PetG subunit of the cytochrome b6f complex PetG subunit of the cytochrome b6f complex (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
G [auth L]d1q90l_ Membrane and cell surface proteins and peptides Single transmembrane helix PetL subunit of the cytochrome b6f complex PetL subunit of the cytochrome b6f complex PetL subunit of the cytochrome b6f complex (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
H [auth M]d1q90m_ Membrane and cell surface proteins and peptides Single transmembrane helix PetM subunit of the cytochrome b6f complex PetM subunit of the cytochrome b6f complex PetM subunit of the cytochrome b6f complex (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)
I [auth N]d1q90n_ Membrane and cell surface proteins and peptides Single transmembrane helix PetN subunit of the cytochrome b6f complex PetN subunit of the cytochrome b6f complex PetN subunit of the cytochrome b6f complex (Chlamydomonas reinhardtii ) [TaxId: 3055 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyCytochrome f subunit of the cytochrome b6f complex, transmembrane anchor 8027536 4001680 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyCytochrome f subunit of the cytochrome b6f complex, transmembrane anchor 8039915 3000244 SCOP2 (2022-06-29)
ASCOP2B SuperfamilyRudiment single hybrid motif 8043111 3001910 SCOP2B (2022-06-29)
ASCOP2B Superfamilycytochrome f, large domain 8040246 3000800 SCOP2B (2022-06-29)
ASCOP2B Superfamilycytochrome f, large domain 8040246 3000800 SCOP2B (2022-06-29)
BSCOP2 FamilyCytochrome b of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8027537 4002208 SCOP2 (2022-06-29)
BSCOP2 SuperfamilyTransmembrane di-heme cytochromes 8039916 3000517 SCOP2 (2022-06-29)
CSCOP2 FamilyRieske iron-sulfur protein (ISP) 8027538 4001667 SCOP2 (2022-06-29)
CSCOP2 SuperfamilyISP domain 8039917 3000233 SCOP2 (2022-06-29)
DSCOP2 Familya domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8027540 4002216 SCOP2 (2022-06-29)
DSCOP2 Superfamilya domain/subunit of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8039919 3000966 SCOP2 (2022-06-29)
E [auth R]SCOP2 FamilyISP transmembrane anchor 8027548 4002051 SCOP2 (2022-06-29)
E [auth R]SCOP2 SuperfamilyISP transmembrane anchor 8039927 3000753 SCOP2 (2022-06-29)
F [auth G]SCOP2 FamilyPetG subunit of the cytochrome b6f complex 8027542 4001700 SCOP2 (2022-06-29)
F [auth G]SCOP2 SuperfamilyPetG subunit of the cytochrome b6f complex 8039921 3000270 SCOP2 (2022-06-29)
G [auth L]SCOP2 FamilyPetL subunit of the cytochrome b6f complex 8027544 4001686 SCOP2 (2022-06-29)
G [auth L]SCOP2 SuperfamilyPetL subunit of the cytochrome b6f complex 8039923 3000253 SCOP2 (2022-06-29)
H [auth M]SCOP2 FamilyPetM subunit of the cytochrome b6f complex 8027545 4001695 SCOP2 (2022-06-29)
H [auth M]SCOP2 SuperfamilyPetM subunit of the cytochrome b6f complex 8039924 3000262 SCOP2 (2022-06-29)
I [auth N]SCOP2 FamilyPetN subunit of the cytochrome b6f complex 8027547 4001705 SCOP2 (2022-06-29)
I [auth N]SCOP2 SuperfamilyPetN subunit of the cytochrome b6f complex 8039926 3000279 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AApocytochr_F_Ne1q90A1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Common fold of diphtheria toxin/transcription factors/cytochrome fF: Apocytochr_F_NECOD (1.6)
AApocytochr_F_C_Ne1q90A3 A: a+b complex topologyX: alpha/beta-Hammerhead/Barrel-sandwich hybridH: alpha/beta-Hammerhead/Barrel-sandwich hybridT: Single hybrid motifF: Apocytochr_F_C_NECOD (1.6)
AApocytochr_F_C_Ce1q90A2 A: extended segmentsX: Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchor (From Topology)H: Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchor (From Topology)T: Cytochrome f subunit of the cytochrome b6f complex, transmembrane anchorF: Apocytochr_F_C_CECOD (1.6)
BCytochrome_Be1q90B1 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)
CRieske_cytochrome_b6fe1q90C1 A: beta sandwichesX: ISP domain (From Topology)H: ISP domain (From Topology)T: ISP domainF: Rieske_cytochrome_b6fECOD (1.6)
CRieske_4e1q90C2 A: few secondary structure elementsX: Trm112p-like (From Topology)H: Trm112p-like (From Topology)T: Trm112p-likeF: Rieske_4ECOD (1.6)
DCytochrom_B_Ce1q90D1 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)
E [auth R]CytB6-F_Fe-Se1q90R1 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: CytB6-F_Fe-SECOD (1.6)
F [auth G]PetGe1q90G1 A: extended segmentsX: PetG subunit of the cytochrome b6f complex (From Topology)H: PetG subunit of the cytochrome b6f complex (From Topology)T: PetG subunit of the cytochrome b6f complexF: PetGECOD (1.6)
G [auth L]PetLe1q90L1 A: extended segmentsX: PetL subunit of the cytochrome b6f complex (From Topology)H: PetL subunit of the cytochrome b6f complex (From Topology)T: PetL subunit of the cytochrome b6f complexF: PetLECOD (1.6)
H [auth M]PetMe1q90M1 A: extended segmentsX: PetM subunit of the cytochrome b6f complex (From Topology)H: PetM subunit of the cytochrome b6f complex (From Topology)T: PetM subunit of the cytochrome b6f complexF: PetMECOD (1.6)
I [auth N]PetNe1q90N1 A: extended segmentsX: PetN subunit of the cytochrome b6f complex (From Topology)H: PetN subunit of the cytochrome b6f complex (From Topology)T: PetN subunit of the cytochrome b6f complexF: PetNECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF16639Apocytochrome F, N-terminal (Apocytochr_F_N)Apocytochrome F, N-terminalThis is the N-terminal domain of cytochrome f. It is a soluble lumen-side domain [1].Domain
PF01333Apocytochrome F, C-terminal (Apocytochr_F_C)Apocytochrome F, C-terminalThis is a sub-family of cytochrome C. See Pfam:PF00034.Domain
PF00033Cytochrome b/b6/petB (Cytochrome_B)Cytochrome b/b6/petB- Domain
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
PF00032Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)Cytochrome b(C-terminal)/b6/petD- Domain
F [auth G]PF02529Cytochrome B6-F complex subunit 5 (PetG)Cytochrome B6-F complex subunit 5- Family
G [auth L]PF05115Cytochrome B6-F complex subunit VI (PetL) (PetL)Cytochrome B6-F complex subunit VI (PetL)- Family
I [auth N]PF03742PetN (PetN)PetN- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Apocytochrome f
Cytochrome b6
Cytochrome B6-F complex iron-sulfur subunit -
Cytochrome b6-f complex subunit 4
E [auth R]Cytochrome B6-F complex iron-sulfur subunit -
F [auth G]Cytochrome b6f complex subunit petG
G [auth L]Cytochrome b6f complex subunit petL
H [auth M]Cytochrome b6f complex subunit PETM- -
I [auth N]Cytochrome b6f complex subunit PETN

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR002325Cytochrome fFamily
IPR011054Rudiment single hybrid motifHomologous Superfamily
IPR036826Cytochrome f large domain superfamilyHomologous Superfamily
IPR024058Cytochrome f transmembrane anchorHomologous Superfamily
IPR024094Cytochrome f large domainDomain
IPR027387Cytochrome b/b6-like domain superfamilyHomologous Superfamily
IPR016174Di-haem cytochrome, transmembraneHomologous Superfamily
IPR023530Cytochrome b6, PetBFamily
IPR048259Cytochrome b/b6, N-terminal domain, eukaryotic/bacterialDomain
IPR005797Cytochrome b/b6, N-terminal domainDomain
IPR017941Rieske [2Fe-2S] iron-sulphur domainDomain
IPR005805Rieske iron-sulphur protein, C-terminalDomain
IPR036922Rieske [2Fe-2S] iron-sulphur domain superfamilyHomologous Superfamily
IPR014349Rieske iron-sulphur proteinFamily
IPR036150Cytochrome b/b6, C-terminal domain superfamilyHomologous Superfamily
IPR005870Cytochrome b6/f complex, subunit IVFamily
IPR048260Cytochrome b/b6, C-terminal domain, eukaryotic/bacterialDomain
IPR005798Cytochrome b/b6, C-terminalDomain
E [auth R]IPR017941Rieske [2Fe-2S] iron-sulphur domainDomain
E [auth R]IPR005805Rieske iron-sulphur protein, C-terminalDomain
E [auth R]IPR036922Rieske [2Fe-2S] iron-sulphur domain superfamilyHomologous Superfamily
E [auth R]IPR014349Rieske iron-sulphur proteinFamily
F [auth G]IPR003683Cytochrome b6/f complex, subunit 5Family
F [auth G]IPR036099Cytochrome b6/f complex, subunit 5 superfamilyHomologous Superfamily
G [auth L]IPR007802Cytochrome b6-f complex subunit 6Family
H [auth M]IPR012595PetM of cytochrome b6/f complex subunit 7Family
I [auth N]IPR036143Cytochrome b6-f complex, subunit 8 superfamilyHomologous Superfamily
I [auth N]IPR005497Cytochrome b6-f complex, subunit 8Family