EC - Phosphatidylinositol-3-phosphatase

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IntEnz Enzyme Nomenclature


Accepted name:
Other names:
D-myo-inositol-1,3-bisphosphate 3-phosphohydrolase
inositol 1,3-bisphosphate phosphatase
inositol-1,3-bisphosphate 3-phosphatase
inositol-polyphosphate 3-phosphatase
phosphatidyl-3-phosphate 3-phosphohydrolase
Systematic name:
1-phosphatidyl-1D-myo-inositol-3-phosphate 3-phosphohydrolase



This enzyme still works when the 2,3-bis(acyloxy)propyl group is removed, i.e., it hydrolyses Ins(1,3)P2 to Ins-1-P.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , DIAGRAM , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
Gene Ontology: GO:0004438
CAS Registry Number: 124248-47-1
UniProtKB/Swiss-Prot: (62) [show] [UniProt]


  1. Lips, D.L. and Majerus, P.W.
    The discovery of a 3-phosphomonoesterase that hydrolyzes phosphatidylinositol 3-phosphate in NIH 3T3 cells.
    J. Biol. Chem. 264 : 19911-19915 (1989). [PMID: 2555336]
  2. Caldwell, K.K., Lips, D.L., Bansal, V.S. and Majerus, P.W.
    Isolation and characterization of two 3-phosphatases that hydrolyze both phosphatidylinositol 3-phosphate and inositol 1,3-bisphosphate.
    J. Biol. Chem. 266 : 18378-18386 (1991). [PMID: 1655747]

[EC created 1992, [EC created 1992, incorporated 2002], modified 2002]