Reaction: PI(3,4,5)P3 is dephosphorylated to PI(3,4)P2 by INPP5[2] at the plasma membrane
- in pathway: Synthesis of PIPs at the plasma membrane
At the plasma membrane, phosphatidylinositol 5-phosphatases dephosphorylate phosphatidylinositol 3,4,5-trisphosphate (PI(3,4,5)P3) to phosphatidylinositol 3,4-bisphosphate (PI(3,4)P2). The phosphatidylinositol 5-phosphatases involved are: inositol polyphosphate 5-phosphatase K (INPP5K) aka SKIP (Ijuin et al. 2000, Gurung et al. 2003), phosphatidylinositol 4,5-bisphosphate 5-phosphatase A (INPP5J) aka PIPP (Gurung et al. 2003, Mochizuki & Takenawa 1999), phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase 1 (INPP5D) aka SHIP1 (Drayer et al. 1995, Kavanaugh et al. 1996, Dunant et al. 2000), and phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase 2 (INPPL1) aka SHIP2 (Habib et al. 1998, Wisniewski et al. 1999, Pesesse et al. 2001).
Reaction - small molecule participants:
Pi [cytosol]
PI(3,4)P2 [plasma membrane]
H2O [cytosol]
PI(3,4,5)P3 [plasma membrane]
Reactome.org reaction link: R-HSA-1675949
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Reaction input - small molecules:
water
1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate(7-)
Reaction output - small molecules:
hydrogenphosphate
1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate
Reactome.org link: R-HSA-1675949