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8Q1B

III2-IV1 respiratory supercomplex from S. pombe

Functional Information from GO Data
ChainGOidnamespacecontents
A0004222molecular_functionmetalloendopeptidase activity
A0005739cellular_componentmitochondrion
A0005759cellular_componentmitochondrial matrix
A0006508biological_processproteolysis
A0006627biological_processprotein processing involved in protein targeting to mitochondrion
A0008233molecular_functionpeptidase activity
A0008237molecular_functionmetallopeptidase activity
A0016787molecular_functionhydrolase activity
A0017087cellular_componentmitochondrial processing peptidase complex
A0046872molecular_functionmetal ion binding
B0005198molecular_functionstructural molecule activity
B0005739cellular_componentmitochondrion
B0005743cellular_componentmitochondrial inner membrane
B0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
B0008121molecular_functionquinol-cytochrome-c reductase activity
B0016020cellular_componentmembrane
B0045275cellular_componentrespiratory chain complex III
B0046872molecular_functionmetal ion binding
B1902600biological_processproton transmembrane transport
C0005739cellular_componentmitochondrion
C0005743cellular_componentmitochondrial inner membrane
C0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
C0008121molecular_functionquinol-cytochrome-c reductase activity
C0009055molecular_functionelectron transfer activity
C0016020cellular_componentmembrane
C0016491molecular_functionoxidoreductase activity
C0022904biological_processrespiratory electron transport chain
C0045275cellular_componentrespiratory chain complex III
C0046872molecular_functionmetal ion binding
C1902600biological_processproton transmembrane transport
D0005739cellular_componentmitochondrion
D0005743cellular_componentmitochondrial inner membrane
D0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
D0008121molecular_functionquinol-cytochrome-c reductase activity
D0009055molecular_functionelectron transfer activity
D0016020cellular_componentmembrane
D0020037molecular_functionheme binding
D0045275cellular_componentrespiratory chain complex III
D0046872molecular_functionmetal ion binding
D1902600biological_processproton transmembrane transport
E0005739cellular_componentmitochondrion
E0005743cellular_componentmitochondrial inner membrane
E0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
E0008121molecular_functionquinol-cytochrome-c reductase activity
E0016020cellular_componentmembrane
E0016491molecular_functionoxidoreductase activity
E0045275cellular_componentrespiratory chain complex III
E0046872molecular_functionmetal ion binding
E0051536molecular_functioniron-sulfur cluster binding
E0051537molecular_function2 iron, 2 sulfur cluster binding
E1902600biological_processproton transmembrane transport
F0005739cellular_componentmitochondrion
F0005743cellular_componentmitochondrial inner membrane
F0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
F0008121molecular_functionquinol-cytochrome-c reductase activity
F0016020cellular_componentmembrane
F0045275cellular_componentrespiratory chain complex III
F1902600biological_processproton transmembrane transport
G0005739cellular_componentmitochondrion
G0005743cellular_componentmitochondrial inner membrane
G0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
G0008121molecular_functionquinol-cytochrome-c reductase activity
G0016020cellular_componentmembrane
G0045275cellular_componentrespiratory chain complex III
G1902600biological_processproton transmembrane transport
H0003674molecular_functionmolecular_function
H0005739cellular_componentmitochondrion
H0005743cellular_componentmitochondrial inner membrane
H0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
H0016020cellular_componentmembrane
H0045275cellular_componentrespiratory chain complex III
I0003674molecular_functionmolecular_function
I0005739cellular_componentmitochondrion
I0005743cellular_componentmitochondrial inner membrane
I0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
I0016020cellular_componentmembrane
I0045275cellular_componentrespiratory chain complex III
J0005739cellular_componentmitochondrion
J0005743cellular_componentmitochondrial inner membrane
J0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
J0008121molecular_functionquinol-cytochrome-c reductase activity
J0016020cellular_componentmembrane
J0045275cellular_componentrespiratory chain complex III
J1902600biological_processproton transmembrane transport
L0004222molecular_functionmetalloendopeptidase activity
L0005739cellular_componentmitochondrion
L0005759cellular_componentmitochondrial matrix
L0006508biological_processproteolysis
L0006627biological_processprotein processing involved in protein targeting to mitochondrion
L0008233molecular_functionpeptidase activity
L0008237molecular_functionmetallopeptidase activity
L0016787molecular_functionhydrolase activity
L0017087cellular_componentmitochondrial processing peptidase complex
L0046872molecular_functionmetal ion binding
M0005198molecular_functionstructural molecule activity
M0005739cellular_componentmitochondrion
M0005743cellular_componentmitochondrial inner membrane
M0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
M0008121molecular_functionquinol-cytochrome-c reductase activity
M0016020cellular_componentmembrane
M0045275cellular_componentrespiratory chain complex III
M0046872molecular_functionmetal ion binding
M1902600biological_processproton transmembrane transport
N0005739cellular_componentmitochondrion
N0005743cellular_componentmitochondrial inner membrane
N0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
N0008121molecular_functionquinol-cytochrome-c reductase activity
N0009055molecular_functionelectron transfer activity
N0016020cellular_componentmembrane
N0016491molecular_functionoxidoreductase activity
N0022904biological_processrespiratory electron transport chain
N0045275cellular_componentrespiratory chain complex III
N0046872molecular_functionmetal ion binding
N1902600biological_processproton transmembrane transport
O0005739cellular_componentmitochondrion
O0005743cellular_componentmitochondrial inner membrane
O0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
O0008121molecular_functionquinol-cytochrome-c reductase activity
O0009055molecular_functionelectron transfer activity
O0016020cellular_componentmembrane
O0020037molecular_functionheme binding
O0045275cellular_componentrespiratory chain complex III
O0046872molecular_functionmetal ion binding
O1902600biological_processproton transmembrane transport
P0005739cellular_componentmitochondrion
P0005743cellular_componentmitochondrial inner membrane
P0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
P0008121molecular_functionquinol-cytochrome-c reductase activity
P0016020cellular_componentmembrane
P0016491molecular_functionoxidoreductase activity
P0045275cellular_componentrespiratory chain complex III
P0046872molecular_functionmetal ion binding
P0051536molecular_functioniron-sulfur cluster binding
P0051537molecular_function2 iron, 2 sulfur cluster binding
P1902600biological_processproton transmembrane transport
Q0005739cellular_componentmitochondrion
Q0005743cellular_componentmitochondrial inner membrane
Q0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
Q0008121molecular_functionquinol-cytochrome-c reductase activity
Q0016020cellular_componentmembrane
Q0045275cellular_componentrespiratory chain complex III
Q1902600biological_processproton transmembrane transport
R0005739cellular_componentmitochondrion
R0005743cellular_componentmitochondrial inner membrane
R0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
R0008121molecular_functionquinol-cytochrome-c reductase activity
R0016020cellular_componentmembrane
R0045275cellular_componentrespiratory chain complex III
R1902600biological_processproton transmembrane transport
S0003674molecular_functionmolecular_function
S0005739cellular_componentmitochondrion
S0005743cellular_componentmitochondrial inner membrane
S0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
S0016020cellular_componentmembrane
S0045275cellular_componentrespiratory chain complex III
T0003674molecular_functionmolecular_function
T0005739cellular_componentmitochondrion
T0005743cellular_componentmitochondrial inner membrane
T0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
T0016020cellular_componentmembrane
T0045275cellular_componentrespiratory chain complex III
U0005739cellular_componentmitochondrion
U0005743cellular_componentmitochondrial inner membrane
U0006122biological_processmitochondrial electron transport, ubiquinol to cytochrome c
U0008121molecular_functionquinol-cytochrome-c reductase activity
U0016020cellular_componentmembrane
U0045275cellular_componentrespiratory chain complex III
U1902600biological_processproton transmembrane transport
a0004129molecular_functioncytochrome-c oxidase activity
a0009060biological_processaerobic respiration
a0016020cellular_componentmembrane
a0020037molecular_functionheme binding
a0045277cellular_componentrespiratory chain complex IV
b0004129molecular_functioncytochrome-c oxidase activity
b0005507molecular_functioncopper ion binding
b0005739cellular_componentmitochondrion
b0005743cellular_componentmitochondrial inner membrane
b0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
b0016020cellular_componentmembrane
b0016491molecular_functionoxidoreductase activity
b0022900biological_processelectron transport chain
b0031966cellular_componentmitochondrial membrane
b0042773biological_processATP synthesis coupled electron transport
b0045277cellular_componentrespiratory chain complex IV
b0046872molecular_functionmetal ion binding
b1902600biological_processproton transmembrane transport
c0004129molecular_functioncytochrome-c oxidase activity
c0005739cellular_componentmitochondrion
c0005743cellular_componentmitochondrial inner membrane
c0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
c0009055molecular_functionelectron transfer activity
c0016020cellular_componentmembrane
c0019646biological_processaerobic electron transport chain
c0022904biological_processrespiratory electron transport chain
c0031966cellular_componentmitochondrial membrane
c0045277cellular_componentrespiratory chain complex IV
c1902600biological_processproton transmembrane transport
d0004129molecular_functioncytochrome-c oxidase activity
d0005739cellular_componentmitochondrion
d0005740cellular_componentmitochondrial envelope
d0005743cellular_componentmitochondrial inner membrane
d0006119biological_processoxidative phosphorylation
d0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
d0016020cellular_componentmembrane
d0045277cellular_componentrespiratory chain complex IV
d0046872molecular_functionmetal ion binding
d1902600biological_processproton transmembrane transport
e0004129molecular_functioncytochrome-c oxidase activity
e0005739cellular_componentmitochondrion
e0005743cellular_componentmitochondrial inner membrane
e0006119biological_processoxidative phosphorylation
e0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
e0016020cellular_componentmembrane
e0016491molecular_functionoxidoreductase activity
e0045277cellular_componentrespiratory chain complex IV
e1902600biological_processproton transmembrane transport
f0004129molecular_functioncytochrome-c oxidase activity
f0005739cellular_componentmitochondrion
f0005743cellular_componentmitochondrial inner membrane
f0006119biological_processoxidative phosphorylation
f0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
f0016020cellular_componentmembrane
f0045277cellular_componentrespiratory chain complex IV
f0046872molecular_functionmetal ion binding
f1902600biological_processproton transmembrane transport
g0004129molecular_functioncytochrome-c oxidase activity
g0005739cellular_componentmitochondrion
g0005743cellular_componentmitochondrial inner membrane
g0006119biological_processoxidative phosphorylation
g0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
g0016020cellular_componentmembrane
g0016491molecular_functionoxidoreductase activity
g0045277cellular_componentrespiratory chain complex IV
g1902600biological_processproton transmembrane transport
h0004129molecular_functioncytochrome-c oxidase activity
h0005739cellular_componentmitochondrion
h0005743cellular_componentmitochondrial inner membrane
h0006119biological_processoxidative phosphorylation
h0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
h0016020cellular_componentmembrane
h0016491molecular_functionoxidoreductase activity
h0045277cellular_componentrespiratory chain complex IV
h1902600biological_processproton transmembrane transport
i0004129molecular_functioncytochrome-c oxidase activity
i0005739cellular_componentmitochondrion
i0005743cellular_componentmitochondrial inner membrane
i0006119biological_processoxidative phosphorylation
i0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
i0016020cellular_componentmembrane
i0016491molecular_functionoxidoreductase activity
i0045277cellular_componentrespiratory chain complex IV
i1902600biological_processproton transmembrane transport
j0004129molecular_functioncytochrome-c oxidase activity
j0005739cellular_componentmitochondrion
j0005743cellular_componentmitochondrial inner membrane
j0006119biological_processoxidative phosphorylation
j0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
j0016020cellular_componentmembrane
j0045277cellular_componentrespiratory chain complex IV
j1902600biological_processproton transmembrane transport
k0004129molecular_functioncytochrome-c oxidase activity
k0005739cellular_componentmitochondrion
k0005743cellular_componentmitochondrial inner membrane
k0006119biological_processoxidative phosphorylation
k0006123biological_processmitochondrial electron transport, cytochrome c to oxygen
k0016020cellular_componentmembrane
k0016491molecular_functionoxidoreductase activity
k0030234molecular_functionenzyme regulator activity
k0045277cellular_componentrespiratory chain complex IV
k1902600biological_processproton transmembrane transport
l0004129molecular_functioncytochrome-c oxidase activity
l0005739cellular_componentmitochondrion
l0005743cellular_componentmitochondrial inner membrane
l0016020cellular_componentmembrane
l0033617biological_processmitochondrial cytochrome c oxidase assembly
l0045277cellular_componentrespiratory chain complex IV
l0098803cellular_componentrespiratory chain complex
l1902600biological_processproton transmembrane transport
Functional Information from PROSITE/UniProt
site_idPS00077
Number of Residues55
DetailsCOX1_CUB Heme-copper oxidase catalytic subunit, copper B binding region signature. WFFGHPeVyilimpafgvvshiipslahkpifgkegmlwamlsiallglmvws..HH
ChainResidueDetails
aTRP243-HIS297

site_idPS00078
Number of Residues49
DetailsCOX2 CO II and nitrous oxide reductase dinuclear copper centers signature. ViHswavpslgikcdcipgrlnqvslsidreglfygq......CselCgvlHssM
ChainResidueDetails
bVAL180-MET228

site_idPS00143
Number of Residues24
DetailsINSULINASE Insulinase family, zinc-binding region signature. GsraetaknnGaAHFLEHLaFkGT
ChainResidueDetails
AGLY53-THR76

site_idPS00848
Number of Residues23
DetailsCOX5B_1 Cytochrome c oxidase subunit Vb, zinc binding region signature. LIWmtvykdklrrCpeCGsvYKL
ChainResidueDetails
dLEU130-LEU152

site_idPS01329
Number of Residues18
DetailsCOX6A Cytochrome c oxidase subunit VIa signature. LRfKkYpWGDGsKTlFwN
ChainResidueDetails
kLEU102-ASN119

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsActive site: {"description":"Proton acceptor","evidences":[{"source":"PROSITE-ProRule","id":"PRU10096","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues6
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU10096","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues324
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"UniProtKB","id":"P00163","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues8
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"PROSITE-ProRule","id":"PRU00968","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P00157","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues557
DetailsTransmembrane: {"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues38
DetailsTopological domain: {"description":"Mitochondrial matrix","evidences":[{"source":"UniProtKB","id":"P07143","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues340
DetailsDomain: {"description":"Cytochrome c","evidences":[{"source":"PROSITE-ProRule","id":"PRU00433","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues4
DetailsBinding site: {"description":"covalent","evidences":[{"source":"UniProtKB","id":"P07143","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues4
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"UniProtKB","id":"P07143","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues58
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"UniProtKB","id":"P08067","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues268
DetailsTopological domain: {"description":"Mitochondrial intermembrane","evidences":[{"source":"UniProtKB","id":"P08067","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues176
DetailsDomain: {"description":"Rieske","evidences":[{"source":"PROSITE-ProRule","id":"PRU00628","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI14
Number of Residues8
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00628","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI15
Number of Residues60
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"UniProtKB","id":"P08525","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI16
Number of Residues32
DetailsTopological domain: {"description":"Mitochondrial matrix","evidences":[{"source":"PubMed","id":"37939086","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI17
Number of Residues50
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"PubMed","id":"37939086","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI18
Number of Residues46
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"UniProtKB","id":"P37299","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI19
Number of Residues9
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P00401","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI20
Number of Residues3
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"UniProtKB","id":"P00401","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI21
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P00396","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI22
Number of Residues2
DetailsCross-link: {"description":"1'-histidyl-3'-tyrosine (His-Tyr)","evidences":[{"source":"UniProtKB","id":"P00401","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI23
Number of Residues17
DetailsTopological domain: {"description":"Mitochondrial matrix","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI24
Number of Residues6
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P00410","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI25
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00692","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI26
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"P04037","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI27
Number of Residues6
DetailsTopological domain: {"description":"Mitochondrial intermembrane","evidences":[{"source":"UniProtKB","id":"P04039","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI28
Number of Residues20
DetailsTopological domain: {"description":"Mitochondrial intermembrane","evidences":[{"source":"UniProtKB","id":"P07255","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI29
Number of Residues43
DetailsDomain: {"description":"CHCH","evidences":[{"source":"PROSITE-ProRule","id":"PRU01150","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI30
Number of Residues10
DetailsMotif: {"description":"Cx9C motif","evidences":[{"source":"PROSITE-ProRule","id":"PRU01150","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI31
Number of Residues11
DetailsMotif: {"description":"Cx10C motif","evidences":[{"source":"PROSITE-ProRule","id":"PRU01150","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI32
Number of Residues40
DetailsTransmembrane: {"description":"Helical","evidences":[{"source":"PROSITE-ProRule","id":"PRU00836","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

239803

PDB entries from 2025-08-06

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