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NiceZyme View of ENZYME: EC 3.1.3.66

Official Name
Phosphatidylinositol-3,4-bisphosphate 4-phosphatase.
Alternative Name(s)
D-myo-inositol-3,4-bisphosphate 4-phosphohydrolase.
Inositol polyphosphate 4-phosphatase.
Inositol polyphosphate 4-phosphatase type II.
Inositol-3,4-bisphosphate 4-phosphatase.
Phosphoinositide 4-phosphatase.
Reaction catalysed
1-phosphatidyl-myo-inositol 3,4-bisphosphate + H(2)O <=> 1-phosphatidyl-1D-myo-inositol 3-phosphate + phosphate
Comment(s)
  • Magnesium-independent.
  • This enzyme still works when the 2,3-bis(acyloxy)propyl group is removed, i.e., it hydrolyzes Ins(1,3,4)P(3) to Ins(1,3)P(2).
  • It also converts Ins(3,4)P(2) into Ins-3-P.
Cross-references
BRENDA3.1.3.66
PUMA23.1.3.66
PRIAM enzyme-specific profiles3.1.3.66
KEGG Ligand Database for Enzyme Nomenclature3.1.3.66
IUBMB Enzyme Nomenclature3.1.3.66
IntEnz3.1.3.66
MEDLINEFind literature relating to 3.1.3.66
MetaCyc3.1.3.66
UniProtKB/Swiss-Prot
Q96PE3, INP4A_HUMAN;  Q9EPW0, INP4A_MOUSE;  Q62784, INP4A_RAT;  
O15327, INP4B_HUMAN;  Q4R4D7, INP4B_MACFA;  Q6P1Y8, INP4B_MOUSE;  
Q5RA60, INP4B_PONAB;  Q9QWG5, INP4B_RAT;  

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.1.3.-
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