241 human active and 13 inactive phosphatases in total;
194 phosphatases have substrate data;
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336 protein substrates;
83 non-protein substrates;
1215 dephosphorylation interactions;
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299 KEGG pathways;
876 Reactome pathways;
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last scientific update: 11 Mar, 2019
last maintenance update: 01 Sep, 2023
The PI(3,5)P2 regulatory complex regulates both thesynthesis and turnover of phosphatidylinositol 3,5-bisphosphate(PtdIns(3,5)P2) In vitro, hydrolyzes all three D5-phosphorylatedpolyphosphoinositide substrates in the order PtdIns(4,5)P2 >PtdIns(3,5)P2 > PtdIns(3,4,5)P3 Plays a role in the biogenesis ofendosome carrier vesicles (ECV) / multivesicular bodies (MVB)transport intermediates from early endosomes
At the Golgi membrane, phosphatidylinositol 4-phosphate (PI4P) is primarily generated from phosphorylation of phosphatidylinositol (PI). Other phosphoinositides are also generated by the action of various kinases and phosphatases such as: phosphatidylinositol 3-phosphate (PI3P), phosphatidylinositol 3,4-bisphosphate (PI(3,4)P2), phosphatidylinositol 3,5-bisphosphate (PI(3,5)P2) (Godi et al. 1999, Minogue et al. 2001, Rohde et al. 2003, Sbrissa et al. 2007, Sbrissa et al. 2008, Domin et al. 2000, Arcaro et al. 2000)
At the early endosome membrane, phosphatidylinositol 3,5-bisphosphate (PI(3,5)P2) is generated in two steps from phosphatidylinositol 3,4-bisphosphate PI(3,4)P2 by the action of various kinases and phosphatases (Sbrissa et al. 2007, Sbrissa et al. 2008, Cao et al. 2007, Cao et al. 2008, Arcaro et al. 2000, Kim et al. 2002)
At the late endosome membrane, the primary event is the dephosphorylation of the phosphoinositide phosphatidylinositol 3,5-bisphosphate (PI(3,5)P2) to phosphatidylinositol 3-phosphate (PI3P) and phosphatidylinositol 5-phosphate (PI5P) (Sbrissa et al. 2007, Sbrissa et al. 2008, Cao et al. 2007, Cao et al. 2008, Arcaro et al. 2000, Kim et al. 2002)