Q1R3T1 · ACEK_ECOUT
- ProteinIsocitrate dehydrogenase kinase/phosphatase
- GeneaceK
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids574 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Bifunctional enzyme which can phosphorylate or dephosphorylate isocitrate dehydrogenase (IDH) on a specific serine residue. This is a regulatory mechanism which enables bacteria to bypass the Krebs cycle via the glyoxylate shunt in response to the source of carbon. When bacteria are grown on glucose, IDH is fully active and unphosphorylated, but when grown on acetate or ethanol, the activity of IDH declines drastically concomitant with its phosphorylation.
Catalytic activity
- L-seryl-[isocitrate dehydrogenase] + ATP = O-phospho-L-seryl-[isocitrate dehydrogenase] + ADP + H+
Features
Showing features for binding site, active site.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Binding site | 315-321 | ATP (UniProtKB | ChEBI) | |||
Binding site | 336 | ATP (UniProtKB | ChEBI) | |||
Active site | 371 | ||||
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | [isocitrate dehydrogenase (NADP+)] kinase activity | |
Molecular Function | AMP binding | |
Molecular Function | ATP binding | |
Molecular Function | phosphoprotein phosphatase activity | |
Molecular Function | protein serine/threonine kinase activity | |
Biological Process | glucose metabolic process | |
Biological Process | glyoxylate cycle | |
Biological Process | peptidyl-serine phosphorylation | |
Biological Process | protein dephosphorylation | |
Biological Process | regulation of catalytic activity | |
Biological Process | tricarboxylic acid cycle |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameIsocitrate dehydrogenase kinase/phosphatase
- EC number
- Short namesIDH kinase/phosphatase ; IDHK/P
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Gammaproteobacteria > Enterobacterales > Enterobacteriaceae > Escherichia
Accessions
- Primary accessionQ1R3T1
Proteomes
Subcellular Location
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Chain | PRO_0000259150 | 1-574 | Isocitrate dehydrogenase kinase/phosphatase | ||
Structure
Sequence
- Sequence statusComplete
- Length574
- Mass (Da)67,206
- Last updated2006-05-16 v1
- Checksum8285CBDABE00D7EB
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CP000243 EMBL· GenBank· DDBJ | ABE09983.1 EMBL· GenBank· DDBJ | Genomic DNA |