Phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase
Identifiers
EC no.3.1.3.86
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Phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase (EC 3.1.3.86, SHIP, p150Ship) is an enzyme with systematic name 1-phosphatidyl-1D-myo-inositol-3,4,5-trisphosphate 5-phosphohydrolase,[1][2][3][4][5] that has two isoforms: SHIP1 (produced by the gene INPP5D) and SHIP2 (INPPL1).

This enzyme catalyses the following chemical reaction

1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate + H2O
1-phosphatidyl-1D-myo-inositol 3,4-bisphosphate + phosphate

This enzyme hydrolyses 1-phosphatidyl-1D-myo-inositol 3,4,5-trisphosphate (PtdIns(3,4,5)P3) to produce PtdIns(3,4)P2.

References

  1. ↑ Lioubin MN, Algate PA, Tsai S, Carlberg K, Aebersold A, Rohrschneider LR (May 1996). "p150Ship, a signal transduction molecule with inositol polyphosphate-5-phosphatase activity". Genes & Development. 10 (9): 1084–95. doi:10.1101/gad.10.9.1084. PMID 8654924.
  2. ↑ Damen JE, Liu L, Rosten P, Humphries RK, Jefferson AB, Majerus PW, Krystal G (February 1996). "The 145-kDa protein induced to associate with Shc by multiple cytokines is an inositol tetraphosphate and phosphatidylinositol 3,4,5-triphosphate 5-phosphatase". Proceedings of the National Academy of Sciences of the United States of America. 93 (4): 1689–93. doi:10.1073/pnas.93.4.1689. PMC 40003. PMID 8643691.
  3. ↑ Giuriato S, Payrastre B, Drayer AL, Plantavid M, Woscholski R, Parker P, Erneux C, Chap H (October 1997). "Tyrosine phosphorylation and relocation of SHIP are integrin-mediated in thrombin-stimulated human blood platelets". The Journal of Biological Chemistry. 272 (43): 26857–63. doi:10.1074/jbc.272.43.26857. PMID 9341117.
  4. ↑ Drayer AL, Pesesse X, De Smedt F, Woscholski R, Parker P, Erneux C (August 1996). "Cloning and expression of a human placenta inositol 1,3,4,5-tetrakisphosphate and phosphatidylinositol 3,4,5-trisphosphate 5-phosphatase". Biochemical and Biophysical Research Communications. 225 (1): 243–9. doi:10.1006/bbrc.1996.1161. PMID 8769125.
  5. ↑ Pesesse X, Moreau C, Drayer AL, Woscholski R, Parker P, Erneux C (October 1998). "The SH2 domain containing inositol 5-phosphatase SHIP2 displays phosphatidylinositol 3,4,5-trisphosphate and inositol 1,3,4,5-tetrakisphosphate 5-phosphatase activity". FEBS Letters. 437 (3): 301–3. doi:10.1016/S0014-5793(98)01255-1. PMID 9824312.
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