A0A343F035 · A0A343F035_9CRUS
- ProteinCytochrome b
- Genecytb
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids374 (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 | 80 | Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 94 | Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 179 | Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 193 | Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 198 | a ubiquinone (UniProtKB | ChEBI) | |||
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 | mitochondrial electron transport, ubiquinol to cytochrome c |
Keywords
- Biological process
- Ligand
Names & Taxonomy
Protein names
- Recommended nameCytochrome b
Gene names
Encoded on
- Mitochondrion
Organism names
- Organism
- Taxonomic lineageEukaryota > Metazoa > Ecdysozoa > Arthropoda > Crustacea > Multicrustacea > Malacostraca > Eumalacostraca > Peracarida > Isopoda > Oniscidea > Crinocheta > Armadillidiidae > Armadillidium
Accessions
- Primary accessionA0A343F035
Subcellular Location
UniProt Annotation
GO Annotation
Mitochondrion inner membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Transmembrane | 27-53 | Helical | |||
Transmembrane | 74-95 | Helical | |||
Transmembrane | 110-130 | Helical | |||
Transmembrane | 142-163 | Helical | |||
Transmembrane | 175-196 | Helical | |||
Transmembrane | 217-242 | Helical | |||
Transmembrane | 285-305 | Helical | |||
Transmembrane | 317-336 | Helical | |||
Transmembrane | 342-361 | Helical | |||
Keywords
- Cellular component
Interaction
Subunit
The main subunits of complex b-c1 are: cytochrome b, cytochrome c1 and the Rieske protein.
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Domain | 1-206 | Cytochrome b/b6 N-terminal region profile | |||
Domain | 207-374 | Cytochrome b/b6 C-terminal region profile | |||
Sequence similarities
Belongs to the cytochrome b family.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusComplete
- Length374
- Mass (Da)42,419
- Last updated2018-11-07 v1
- MD5 ChecksumA113DE2893D3C2998BD4E6E9AA009224
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
MF187611 EMBL· GenBank· DDBJ | ASN74411.1 EMBL· GenBank· DDBJ | Genomic DNA |