A0A0K0KGT0 · A0A0K0KGT0_NUMTA
- ProteinCytochrome b
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids347 (go to sequence)
- Protein existenceInferred from homology
- Annotation score2/5
Function
function
Component of the ubiquinol-cytochrome c reductase complex (complex III or cytochrome b-c1 complex) that is part of the mitochondrial respiratory chain. The b-c1 complex mediates electron transfer from ubiquinol to cytochrome c. Contributes to the generation of a proton gradient across the mitochondrial membrane that is then used for ATP synthesis.
Cofactor
Protein has several cofactor binding sites:
Note: Binds 2 heme groups non-covalently.
Note: Binds 2 heme groups non-covalently.
Features
Showing features for binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 51 | Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue | ||||
Sequence: H | ||||||
Binding site | 65 | Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue | ||||
Sequence: H | ||||||
Binding site | 150 | Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue | ||||
Sequence: H | ||||||
Binding site | 164 | Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue | ||||
Sequence: H | ||||||
Binding site | 169 | a ubiquinone (UniProtKB | ChEBI) | ||||
Sequence: H |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | mitochondrial inner membrane | |
Cellular Component | respiratory chain complex III | |
Molecular Function | metal ion binding | |
Molecular Function | ubiquinol-cytochrome-c reductase activity | |
Biological Process | respiratory electron transport chain |
Keywords
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended nameCytochrome b
Encoded on
- Mitochondrion
Organism names
- Taxonomic lineageEukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Archelosauria > Archosauria > Dinosauria > Saurischia > Theropoda > Coelurosauria > Aves > Neognathae > Charadriiformes > Scolopacidae > Numenius
Accessions
- Primary accessionA0A0K0KGT0
Subcellular Location
UniProt Annotation
GO Annotation
Membrane ; Multi-pass membrane protein
Mitochondrion inner membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transmembrane | 53-71 | Helical | ||||
Sequence: NGASFFFICIYLHIGRGLY | ||||||
Transmembrane | 83-101 | Helical | ||||
Sequence: TGVILLLTLMATAFVGYVL | ||||||
Transmembrane | 107-125 | Helical | ||||
Sequence: SFWGATVITNLFSAIPYIG | ||||||
Transmembrane | 146-167 | Helical | ||||
Sequence: FFALHFLLPFMIAGLTLIHLTF | ||||||
Transmembrane | 197-218 | Helical | ||||
Sequence: ILGFIIMFLPLLTLALFSPNLL | ||||||
Transmembrane | 259-276 | Helical | ||||
Sequence: VLALAASVLILFLIPLLH | ||||||
Transmembrane | 288-308 | Helical | ||||
Sequence: LSQLLFWTLTANLLILTWVGS | ||||||
Transmembrane | 314-338 | Helical | ||||
Sequence: PFIIIGQLASLTYFTTLLLLFPLAA |
Keywords
- Cellular component
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 1-177 | Cytochrome b/b6 N-terminal region profile | ||||
Sequence: FGSLLGICLMTQILTGLLLAMHYTADTTLAFSSVAHTCRNVQYGWLIHNLHANGASFFFICIYLHIGRGLYYGSYLYKETWNTGVILLLTLMATAFVGYVLPWGQMSFWGATVITNLFSAIPYIGQTLVEWAWGGFSVDNPTLTRFFALHFLLPFMIAGLTLIHLTFLHETGSNNPL | ||||||
Domain | 178-347 | Cytochrome b/b6 C-terminal region profile | ||||
Sequence: GISSNSDKIPFHPYFSLKDILGFIIMFLPLLTLALFSPNLLGDPENFTPANPLVTPPHIKPEWYFLFAYAILRSIPNKLGGVLALAASVLILFLIPLLHKSKQRTMTFRPLSQLLFWTLTANLLILTWVGSQPVEHPFIIIGQLASLTYFTTLLLLFPLAATLENKMLNY |
Sequence similarities
Belongs to the cytochrome b family.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusFragment
- Length347
- Mass (Da)38,872
- Last updated2015-11-11 v1
- ChecksumECB5E0323EF60404
Features
Showing features for non-terminal residue.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Non-terminal residue | 1 | |||||
Sequence: F |