Phosphatidylinositol-3,4-bisphosphate 4-phosphatase

The enzyme phosphatidylinositol-3,4-bisphosphate 4-phosphatase (EC 3.1.3.66) that catalyzes the reaction


 * 1-phosphatidyl-myo-inositol 3,4-bisphosphate + H2O $$\rightleftharpoons$$ 1-phosphatidyl-1 D -myo-inositol 3-phosphate + phosphate

This enzyme belongs to the family of hydrolases, specifically those acting on phosphoric monoester bonds. The systematic name is 1-phosphatidyl-1 D -myo-inositol-3,4-bisphosphate 4-phosphohydrolase. Other names in common use include inositol-3,4-bisphosphate 4-phosphatase,  D -myo-inositol-3,4-bisphosphate 4-phosphohydrolase, phosphoinositide 4-phosphatase, inositol polyphosphate 4-phosphatase,  D -myo-inositol-3,4-bisphosphate 4-phosphohydrolase, and inositol polyphosphate 4-phosphatase type II. This enzyme participates in inositol phosphate metabolism and phosphatidylinositol signaling system.