FUNCTION: Phosphatidylinositol (PtdIns) phosphatase that specifically hydrolyzes the 5-phosphate of phosphatidylinositol-3,4,5-trisphosphate (PtdIns(3,4,5)P3) to produce PtdIns(3,4)P2, thereby negatively regulating the PI3K (phosphoinositide 3-kinase) pathways (PubMed:8723348, PubMed:10764818, PubMe...
FUNCTION: Phosphatidylinositol (PtdIns) phosphatase that specifically hydrolyzes the 5-phosphate of phosphatidylinositol-3,4,5-trisphosphate (PtdIns(3,4,5)P3) to produce PtdIns(3,4)P2, thereby negatively regulating the PI3K (phosphoinositide 3-kinase) pathways (PubMed:8723348, PubMed:10764818, PubMed:8769125). Able also to hydrolyzes the 5-phosphate of phosphatidylinositol-4,5-bisphosphate (PtdIns(4,5)P3) and inositol 1,3,4,5-tetrakisphosphate (PubMed:9108392, PubMed:10764818, PubMed:8769125). Acts as a negative regulator of B-cell antigen receptor signaling. Mediates signaling from the FC-gamma-RIIB receptor (FCGR2B), playing a central role in terminating signal transduction from activating immune/hematopoietic cell receptor systems. Acts as a negative regulator of myeloid cell proliferation/survival and chemotaxis, mast cell degranulation, immune cells homeostasis, integrin alpha-IIb/beta-3 signaling in platelets and JNK signaling in B-cells. Regulates proliferation of osteoclast precursors, macrophage programming, phagocytosis and activation and is required for endotoxin tolerance. Involved in the control of cell-cell junctions, CD32a signaling in neutrophils and modulation of EGF-induced phospholipase C activity (PubMed:16682172). Key regulator of neutrophil migration, by governing the formation of the leading edge and polarization required for chemotaxis. Modulates FCGR3/CD16-mediated cytotoxicity in NK cells. Mediates the activin/TGF-beta-induced apoptosis through its Smad-dependent expression. {ECO:0000269|PubMed:10764818, ECO:0000269|PubMed:12421919, ECO:0000269|PubMed:16682172, ECO:0000269|PubMed:8723348, ECO:0000269|PubMed:8769125, ECO:0000269|PubMed:9108392}.
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GO - Biological processes (BP):
apoptotic process [GO:0006915]; determination of adult lifespan [GO:0008340]; immunoglobulin mediated immune response [GO:0016064]; intracellular signal transduction [GO:0035556]; negative regulation of B cell proliferation [GO:0030889]; negative regulation of bone resorption [GO:0045779]; negative ...
apoptotic process [GO:0006915]; determination of adult lifespan [GO:0008340]; immunoglobulin mediated immune response [GO:0016064]; intracellular signal transduction [GO:0035556]; negative regulation of B cell proliferation [GO:0030889]; negative regulation of bone resorption [GO:0045779]; negative regulation of immune response [GO:0050777]; negative regulation of interleukin-6 production [GO:0032715]; negative regulation of monocyte differentiation [GO:0045656]; negative regulation of neutrophil differentiation [GO:0045659]; negative regulation of osteoclast differentiation [GO:0045671]; negative regulation of signal transduction [GO:0009968]; phosphate-containing compound metabolic process [GO:0006796]; phosphatidylinositol biosynthetic process [GO:0006661]; phosphatidylinositol dephosphorylation [GO:0046856]; positive regulation of apoptotic process [GO:0043065]; positive regulation of B cell differentiation [GO:0045579]; positive regulation of erythrocyte differentiation [GO:0045648]; signal transduction [GO:0007165]; T cell receptor signaling pathway [GO:0050852]
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GO - Molecular function (MF):
inositol-1,3,4,5-tetrakisphosphate 5-phosphatase activity [GO:0052659]; inositol-1,4,5-trisphosphate 5-phosphatase activity [GO:0052658]; inositol-polyphosphate 5-phosphatase activity [GO:0004445]; phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase activity [GO:0016314]; phosphatidylinositol-3,4...
inositol-1,3,4,5-tetrakisphosphate 5-phosphatase activity [GO:0052659]; inositol-1,4,5-trisphosphate 5-phosphatase activity [GO:0052658]; inositol-polyphosphate 5-phosphatase activity [GO:0004445]; phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase activity [GO:0016314]; phosphatidylinositol-3,4,5-trisphosphate 5-phosphatase activity [GO:0034485]; phosphatidylinositol-4,5-bisphosphate 5-phosphatase activity [GO:0004439]; SH3 domain binding [GO:0017124]
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GO - Cellular component (CC):
cytoskeleton [GO:0005856]; cytosol [GO:0005829]; membrane raft [GO:0045121]; plasma membrane [GO:0005886]...
cytoskeleton [GO:0005856]; cytosol [GO:0005829]; membrane raft [GO:0045121]; plasma membrane [GO:0005886]
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