A0A482E380 · A0A482E380_PALTR
- ProteinCytochrome b
- Genecytb
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids340 (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 | 46 | Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 60 | Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 145 | Fe (UniProtKB | ChEBI) of heme b b562 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 159 | Fe (UniProtKB | ChEBI) of heme b b566 (UniProtKB | ChEBI); axial binding residue | |||
Binding site | 164 | 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
- Strain
- Taxonomic lineageEukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Archelosauria > Archosauria > Crocodylia > Alligatoridae > Caimaninae > Paleosuchus
Accessions
- Primary accessionA0A482E380
Subcellular Location
UniProt Annotation
GO Annotation
Mitochondrion inner membrane ; Multi-pass membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Transmembrane | 48-66 | Helical | |||
Transmembrane | 78-97 | Helical | |||
Transmembrane | 103-129 | Helical | |||
Transmembrane | 141-162 | Helical | |||
Transmembrane | 192-213 | Helical | |||
Transmembrane | 254-274 | Helical | |||
Transmembrane | 286-303 | Helical | |||
Transmembrane | 315-335 | Helical | |||
Keywords
- Cellular component
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Domain | 1-172 | Cytochrome b/b6 N-terminal region profile | |||
Domain | 173-340 | Cytochrome b/b6 C-terminal region profile | |||
Sequence similarities
Belongs to the cytochrome b family.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusFragment
- Length340
- Mass (Da)37,995
- Last updated2019-06-05 v1
- MD5 ChecksumD55BBE3A1A2BAABBCD973F7F72F2C452
Features
Showing features for non-terminal residue.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Non-terminal residue | 1 | ||||
Non-terminal residue | 340 | ||||
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
MH757560 EMBL· GenBank· DDBJ | QBM13964.1 EMBL· GenBank· DDBJ | Genomic DNA |