Galacturonokinase
In enzymology, a galacturonokinase (EC 2.7.1.44) is an enzyme that catalyzes the chemical reaction
- ATP + D-galacturonate ADP + 1-phospho-alpha-D-galacturonate
| galacturonokinase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 2.7.1.44 | ||||||||
| CAS no. | 9026-63-5 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
Thus, the two substrates of this enzyme are ATP and D-galacturonate, whereas its two products are ADP and 1-phospho-alpha-D-galacturonate.
This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:D-galacturonate 1-phosphotransferase. This enzyme is also called galacturonokinase (phosphorylating) D-galacturonic acid kinase. This enzyme participates in nucleotide sugars metabolism.
References
- Neufeld EF, Feingold DS, Ilves SM, Kessler G, Hassid WZ (December 1961). "Phosphorylation of D-galacturonic acid by extracts from germinating seeds of Phaseolus aureus". The Journal of Biological Chemistry. 236: 3102–5. PMID 14479161.
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