Histidinol-phosphatase
In enzymology, a histidinol-phosphatase (EC 3.1.3.15) is an enzyme that catalyzes the chemical reaction
- L-histidinol phosphate + H2O L-histidinol + phosphate
| histidinol-phosphatase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
 Histidinol-phosphatase tetramer, Thermus thermophilus | |||||||||
| Identifiers | |||||||||
| EC number | 3.1.3.15 | ||||||||
| CAS number | 9025-79-0 | ||||||||
| 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 L-histidinol phosphate and H2O, whereas its two products are L-histidinol and phosphate.
This enzyme participates in histidine metabolism.
Nomenclature
This enzyme belongs to the family of hydrolases, to be specific, those acting on phosphoric monoester bonds. The systematic name of this enzyme class is L-histidinol-phosphate phosphohydrolase. Other names in common use include histidinol phosphate phosphatase, L-histidinol phosphate phosphatase, histidinolphosphate phosphatase, HPpase, and histidinolphosphatase.
E. coli
In E. coli the enzyme encoded by the gene hisB is a fused imidazoleglycerol-phosphate dehydratase and histidinol-phosphatase.[1]
References
- Brilli M, Fani R (February 2004). "Molecular evolution of hisB genes". Journal of Molecular Evolution. 58 (2): 225–37. Bibcode:2004JMolE..58..225B. doi:10.1007/s00239-003-2547-x. PMID 15042344. S2CID 1684458.
Further reading