Q0QEX9 · Q0QEX9_BOVIN
- ProteinSuccinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial
- GeneSDHB
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids231 (go to sequence)
- Protein existenceEvidence at transcript level
- Annotation score3/5
Function
function
Iron-sulfur protein (IP) subunit of succinate dehydrogenase (SDH) that is involved in complex II of the mitochondrial electron transport chain and is responsible for transferring electrons from succinate to ubiquinone (coenzyme Q).
Catalytic activity
- (R)-malate + a quinone = a quinol + enol-oxaloacetateThis reaction proceeds in the forward direction.
- (S)-malate + a quinone = a quinol + enol-oxaloacetateThis reaction proceeds in the forward direction.
Cofactor
Protein has several cofactor binding sites:
Note: Binds 1 [2Fe-2S] cluster.
Note: Binds 1 [3Fe-4S] cluster.
Note: Binds 1 [4Fe-4S] cluster.
Pathway
Carbohydrate metabolism; tricarboxylic acid cycle; fumarate from succinate (eukaryal route): step 1/1.
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | mitochondrial inner membrane | |
Molecular Function | 2 iron, 2 sulfur cluster binding | |
Molecular Function | 3 iron, 4 sulfur cluster binding | |
Molecular Function | 4 iron, 4 sulfur cluster binding | |
Molecular Function | electron transfer activity | |
Molecular Function | metal ion binding | |
Molecular Function | succinate dehydrogenase (quinone) activity | |
Biological Process | respiratory electron transport chain | |
Biological Process | tricarboxylic acid cycle |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameSuccinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial
- EC number
Gene names
Organism names
- Organism
- Taxonomic lineageEukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Mammalia > Eutheria > Laurasiatheria > Artiodactyla > Ruminantia > Pecora > Bovidae > Bovinae > Bos
Accessions
- Primary accessionQ0QEX9
Subcellular Location
UniProt Annotation
GO Annotation
Mitochondrion inner membrane ; Peripheral membrane protein
Keywords
- Cellular component
Structure
Family & Domains
Features
Showing features for domain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 17-110 | 2Fe-2S ferredoxin-type | ||||
Sequence: MKFAIYRWDPDKTGDKPHMQTYEIDLNKCGPMVLDALIKIKNEMDSTLTFRRSCREGICGSCAMNINGGNTLACTRRIDTNLSKVSKIYPLPHM | ||||||
Domain | 153-183 | 4Fe-4S ferredoxin-type | ||||
Sequence: DREKLDGLYECILCACCSTSCPSYWWNGDKY |
Sequence similarities
Family and domain databases
Sequence
- Sequence statusFragment
- Length231
- Mass (Da)26,442
- Last updated2006-09-05 v1
- ChecksumC06F99C6714CEEBF
Features
Showing features for non-terminal residue.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Non-terminal residue | 1 | |||||
Sequence: Q | ||||||
Non-terminal residue | 231 | |||||
Sequence: P |