9C7H | pdb_00009c7h

Cryo-EM structure of respiratory supercomplex III

External Resource: Annotation


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
D [auth 3]SCOP2B SuperfamilySubunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8073349 3000787 SCOP2B (2022-06-29)
V [auth Ad]SCOP2B SuperfamilySubunit XI (6.4 kDa protein) of cytochrome bc1 complex (Ubiquinol-cytochrome c reductase) 8073349 3000787 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth 0],
T [auth Ab]		PF02320Ubiquinol-cytochrome C reductase hinge protein (UCR_hinge)Ubiquinol-cytochrome C reductase hinge proteinThe ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multienzyme complex [1]. This Pfam family represents the 'hinge' protein of the complex which is thought to mediate formation of the cytochrome c1 and cytochrome c ...The ubiquinol-cytochrome C reductase complex (cytochrome bc1 complex) is a respiratory multienzyme complex [1]. This Pfam family represents the 'hinge' protein of the complex which is thought to mediate formation of the cytochrome c1 and cytochrome c complex.
Domain
B [auth 1],
U [auth Ac]		PF05365Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like (UCR_UQCRX_QCR9)Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like- Family
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		PF02921Ubiquinol cytochrome reductase transmembrane region (UCR_TM)Ubiquinol cytochrome reductase transmembrane region- Family
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		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
F [auth 5],
K [auth u]		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
F [auth 5],
K [auth u]		PF00675Insulinase (Peptidase family M16) (Peptidase_M16)Insulinase (Peptidase family M16)- Family
G [auth 6],
L [auth v]		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
G [auth 6],
L [auth v]		PF00675Insulinase (Peptidase family M16) (Peptidase_M16)Insulinase (Peptidase family M16)- Family
H [auth 7],
M [auth w]		PF00032Cytochrome b(C-terminal)/b6/petD (Cytochrom_B_C)Cytochrome b(C-terminal)/b6/petDDomain
H [auth 7],
M [auth w]		PF00033Cytochrome b/b6/petB (Cytochrome_B)Cytochrome b/b6/petBDomain
I [auth 8],
N [auth x]		PF02167Cytochrome C1 family (Cytochrom_C1)Cytochrome C1 family- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth 0],
T [auth Ab]		Cytochrome b-c1 complex subunit 6, mitochondrial-
B [auth 1],
U [auth Ac]		Ubiquinol-cytochrome c reductase complex 7.2 kDa protein-
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		Ubiquinol-cytochrome c reductase, Rieske iron-sulfur polypeptide 1
D [auth 3],
V [auth Ad]		Cytochrome b-c1 complex subunit 10-
F [auth 5],
K [auth u]		Cytochrome b-c1 complex subunit 1, mitochondrial - -
G [auth 6],
L [auth v]		Cytochrome b-c1 complex subunit 2, mitochondrial
H [auth 7],
M [auth w]		Cytochrome b
I [auth 8],
N [auth x]		Cytochrome c1
J [auth 9],
O [auth y]		Cytochrome b-c1 complex subunit 7-
P [auth z],
S [auth Aa]		Cytochrome b-c1 complex subunit 8-

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth 0],
T [auth Ab]		IPR003422Cytochrome b-c1 complex, subunit 6Family
A [auth 0],
T [auth Ab]		IPR023184Ubiquinol-cytochrome C reductase hinge domainDomain
A [auth 0],
T [auth Ab]		IPR036811Ubiquinol-cytochrome C reductase hinge domain superfamilyHomologous Superfamily
B [auth 1],
U [auth Ac]		IPR008027Cytochrome b-c1 complex subunit 9Family
B [auth 1],
U [auth Ac]		IPR036656Cytochrome b-c1 complex subunit 9 superfamilyHomologous Superfamily
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR036922Rieske [2Fe-2S] iron-sulphur domain superfamilyHomologous Superfamily
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR014349Rieske iron-sulphur proteinFamily
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR011070Globular protein, non-globular alpha/beta subunitHomologous Superfamily
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR004192Cytochrome b-c1 complex subunit Rieske, transmembrane domainDomain
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR015248Ubiquinol-cytochrome c reductase iron-sulphur subunit, N-terminalDomain
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR017941Rieske [2Fe-2S] iron-sulphur domainDomain
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR005805Rieske iron-sulphur protein, C-terminalDomain
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR037008Cytochrome bc1 complex subunit Rieske, transmembrane domain superfamilyHomologous Superfamily
C [auth 2],
E [auth 4],
Q [auth Af],
R [auth Ae]		IPR006317Ubiquinol-cytochrome c reductase, iron-sulphur subunitDomain
D [auth 3],
V [auth Ad]		IPR029027Single alpha-helix domain superfamilyHomologous Superfamily
D [auth 3],
V [auth Ad]		IPR015089Cytochrome b-c1 complex subunit 10Family
F [auth 5],
K [auth u]		IPR007863Peptidase M16, C-terminalDomain
F [auth 5],
K [auth u]		IPR011765Peptidase M16, N-terminalDomain
F [auth 5],
K [auth u]		IPR011249Metalloenzyme, LuxS/M16 peptidase-likeHomologous Superfamily
F [auth 5],
K [auth u]		IPR050361Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase ComplexFamily
G [auth 6],
L [auth v]		IPR007863Peptidase M16, C-terminalDomain
G [auth 6],
L [auth v]		IPR011765Peptidase M16, N-terminalDomain
G [auth 6],
L [auth v]		IPR011249Metalloenzyme, LuxS/M16 peptidase-likeHomologous Superfamily
G [auth 6],
L [auth v]		IPR050361Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase ComplexFamily
G [auth 6],
L [auth v]		IPR001431Peptidase M16, zinc-binding siteBinding Site
H [auth 7],
M [auth w]		IPR036150Cytochrome b/b6, C-terminal domain superfamilyHomologous Superfamily
H [auth 7],
M [auth w]		IPR027387Cytochrome b/b6-like domain superfamilyHomologous Superfamily
H [auth 7],
M [auth w]		IPR048260Cytochrome b/b6, C-terminal domain, eukaryotic/bacterialDomain
H [auth 7],
M [auth w]		IPR016174Di-haem cytochrome, transmembraneHomologous Superfamily
H [auth 7],
M [auth w]		IPR005798Cytochrome b/b6, C-terminalDomain
H [auth 7],
M [auth w]		IPR048259Cytochrome b/b6, N-terminal domain, eukaryotic/bacterialDomain
H [auth 7],
M [auth w]		IPR030689Cytochrome bFamily
H [auth 7],
M [auth w]		IPR005797Cytochrome b/b6, N-terminal domainDomain
I [auth 8],
N [auth x]		IPR036909Cytochrome c-like domain superfamilyHomologous Superfamily
I [auth 8],
N [auth x]		IPR002326Cytochrome c1Family
I [auth 8],
N [auth x]		IPR009056Cytochrome c-like domainDomain
I [auth 8],
N [auth x]		IPR021157Cytochrome c1, transmembrane anchor, C-terminalHomologous Superfamily
J [auth 9],
O [auth y]		IPR003197Cytochrome b-c1 complex subunit 7Family
J [auth 9],
O [auth y]		IPR036544Cytochrome b-c1 complex subunit 7 superfamilyHomologous Superfamily
P [auth z],
S [auth Aa]		IPR004205Cytochrome b-c1 complex subunit 8Family
P [auth z],
S [auth Aa]		IPR036642Cytochrome b-c1 complex subunit 8 superfamilyHomologous Superfamily