A0A0R2QSU4 · A0A0R2QSU4_9ACTN
- ProteinSuccinate--CoA ligase [ADP-forming] subunit alpha
- GenesucD
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids293 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Succinyl-CoA synthetase functions in the citric acid cycle (TCA), coupling the hydrolysis of succinyl-CoA to the synthesis of either ATP or GTP and thus represents the only step of substrate-level phosphorylation in the TCA. The alpha subunit of the enzyme binds the substrates coenzyme A and phosphate, while succinate binding and nucleotide specificity is provided by the beta subunit.
Catalytic activity
- succinate + ATP + CoA = succinyl-CoA + ADP + phosphate
- GTP + succinate + CoA = succinyl-CoA + GDP + phosphate
Pathway
Carbohydrate metabolism; tricarboxylic acid cycle; succinate from succinyl-CoA (ligase route): step 1/1.
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 17-20 | CoA (UniProtKB | ChEBI) | |||
Binding site | 43 | CoA (UniProtKB | ChEBI) | |||
Binding site | 100-102 | CoA (UniProtKB | ChEBI) | |||
Binding site | 164 | substrate; ligand shared with subunit beta | |||
Active site | 250 | Tele-phosphohistidine intermediate | |||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytosol | |
Cellular Component | succinate-CoA ligase complex (ADP-forming) | |
Molecular Function | nucleotide binding | |
Molecular Function | succinate-CoA ligase (ADP-forming) activity | |
Molecular Function | succinate-CoA ligase (GDP-forming) activity | |
Biological Process | tricarboxylic acid cycle |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameSuccinate--CoA ligase [ADP-forming] subunit alpha
- EC number
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Actinomycetota > Actinomycetes > Actinomycetes incertae sedis > ac1 cluster
Accessions
- Primary accessionA0A0R2QSU4
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
Interaction
Subunit
Heterotetramer of two alpha and two beta subunits.
Structure
Sequence
- Sequence statusComplete
- Length293
- Mass (Da)29,980
- Last updated2016-01-20 v1
- Checksum77026CE7E1B708D8
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
LIAU01000060 EMBL· GenBank· DDBJ | KRO53260.1 EMBL· GenBank· DDBJ | Genomic DNA |