Histidinol-phosphatase

The enzyme histidinol-phosphatase (EC 3.1.3.15) catalyzes the reaction


 * L -histidinol phosphate + H2O $$\rightleftharpoons$$ L -histidinol + 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 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.