FUNCTION: Tumor suppressor. Acts as a dual-specificity protein phosphatase, dephosphorylating tyrosine-, serine- and threonine-phosphorylated proteins. Also acts as a lipid phosphatase, removing the phosphate in the D3 position of the inositol ring from phosphatidylinositol 3,4,5-trisphosphate, phos...
FUNCTION: Tumor suppressor. Acts as a dual-specificity protein phosphatase, dephosphorylating tyrosine-, serine- and threonine-phosphorylated proteins. Also acts as a lipid phosphatase, removing the phosphate in the D3 position of the inositol ring from phosphatidylinositol 3,4,5-trisphosphate, phosphatidylinositol 3,4-diphosphate, phosphatidylinositol 3-phosphate and inositol 1,3,4,5-tetrakisphosphate with order of substrate preference in vitro PtdIns(3,4,5)P3 > PtdIns(3,4)P2 > PtdIns3P > Ins(1,3,4,5)P4 (PubMed:26504226, PubMed:16824732). The lipid phosphatase activity is critical for its tumor suppressor function. Antagonizes the PI3K-AKT/PKB signaling pathway by dephosphorylating phosphoinositides and thereby modulating cell cycle progression and cell survival. The unphosphorylated form cooperates with MAGI2 to suppress AKT1 activation. Dephosphorylates tyrosine-phosphorylated focal adhesion kinase and inhibits cell migration and integrin-mediated cell spreading and focal adhesion formation. Plays a role as a key modulator of the AKT-mTOR signaling pathway controlling the tempo of the process of newborn neurons integration during adult neurogenesis, including correct neuron positioning, dendritic development and synapse formation. May be a negative regulator of insulin signaling and glucose metabolism in adipose tissue. The nuclear monoubiquitinated form possesses greater apoptotic potential, whereas the cytoplasmic nonubiquitinated form induces less tumor suppressive ability. In motile cells, suppresses the formation of lateral pseudopods and thereby promotes cell polarization and directed movement. {ECO:0000269|PubMed:16824732, ECO:0000269|PubMed:26504226}.; FUNCTION: [Isoform alpha]: Functional kinase, like isoform 1 it antagonizes the PI3K-AKT/PKB signaling pathway. Plays a role in mitochondrial energetic metabolism by promoting COX activity and ATP production, via collaboration with isoform 1 in increasing protein levels of PINK1.
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GO - Biological processes (BP):
adult behavior [GO:0030534]; angiogenesis [GO:0001525]; apoptotic process [GO:0006915]; brain morphogenesis [GO:0048854]; canonical Wnt signaling pathway [GO:0060070]; cardiac muscle tissue development [GO:0048738]; cell migration [GO:0016477]; cell motility [GO:0048870]; cellular response to electr...
adult behavior [GO:0030534]; angiogenesis [GO:0001525]; apoptotic process [GO:0006915]; brain morphogenesis [GO:0048854]; canonical Wnt signaling pathway [GO:0060070]; cardiac muscle tissue development [GO:0048738]; cell migration [GO:0016477]; cell motility [GO:0048870]; cellular response to electrical stimulus [GO:0071257]; cellular response to hypoxia [GO:0071456]; central nervous system development [GO:0007417]; central nervous system myelin maintenance [GO:0032286]; central nervous system neuron axonogenesis [GO:0021955]; dendritic spine morphogenesis [GO:0060997]; dentate gyrus development [GO:0021542]; dephosphorylation [GO:0016311]; endothelial cell migration [GO:0043542]; forebrain morphogenesis [GO:0048853]; heart development [GO:0007507]; inositol phosphate dephosphorylation [GO:0046855]; learning or memory [GO:0007611]; locomotor rhythm [GO:0045475]; locomotory behavior [GO:0007626]; long-term synaptic potentiation [GO:0060291]; male mating behavior [GO:0060179]; maternal behavior [GO:0042711]; multicellular organismal response to stress [GO:0033555]; negative regulation of apoptotic process [GO:0043066]; negative regulation of axonogenesis [GO:0050771]; negative regulation of axon regeneration [GO:0048681]; negative regulation of cardiac muscle cell proliferation [GO:0060044]; negative regulation of cell aging [GO:0090344]; negative regulation of cell cycle G1/S phase transition [GO:1902807]; negative regulation of cell migration [GO:0030336]; negative regulation of cell population proliferation [GO:0008285]; negative regulation of cell size [GO:0045792]; negative regulation of cyclin-dependent protein serine/threonine kinase activity [GO:0045736]; negative regulation of dendritic spine morphogenesis [GO:0061002]; negative regulation of epithelial cell proliferation [GO:0050680]; negative regulation of epithelial to mesenchymal transition [GO:0010719]; negative regulation of ERK1 and ERK2 cascade [GO:0070373]; negative regulation of excitatory postsynaptic potential [GO:0090394]; negative regulation of focal adhesion assembly [GO:0051895]; negative regulation of G1/S transition of mitotic cell cycle [GO:2000134]; negative regulation of keratinocyte migration [GO:0051548]; negative regulation of myelination [GO:0031642]; negative regulation of neuron projection development [GO:0010977]; negative regulation of organ growth [GO:0046621]; negative regulation of peptidyl-serine phosphorylation [GO:0033137]; negative regulation of phosphatidylinositol 3-kinase signaling [GO:0014067]; negative regulation of protein kinase B signaling [GO:0051898]; negative regulation of protein phosphorylation [GO:0001933]; negative regulation of ribosome biogenesis [GO:0090071]; negative regulation of synaptic vesicle clustering [GO:2000808]; negative regulation of vascular associated smooth muscle cell proliferation [GO:1904706]; negative regulation of wound healing, spreading of epidermal cells [GO:1903690]; neuron-neuron synaptic transmission [GO:0007270]; phosphatidylinositol 3-kinase signaling [GO:0014065]; phosphatidylinositol biosynthetic process [GO:0006661]; phosphatidylinositol dephosphorylation [GO:0046856]; positive regulation of cell population proliferation [GO:0008284]; positive regulation of DNA-binding transcription factor activity [GO:0051091]; positive regulation of ERK1 and ERK2 cascade [GO:0070374]; positive regulation of excitatory postsynaptic potential [GO:2000463]; positive regulation of TRAIL-activated apoptotic signaling pathway [GO:1903984]; positive regulation of ubiquitin-dependent protein catabolic process [GO:2000060]; positive regulation of ubiquitin protein ligase activity [GO:1904668]; postsynaptic density assembly [GO:0097107]; prepulse inhibition [GO:0060134]; presynaptic membrane assembly [GO:0097105]; prostate gland growth [GO:0060736]; protein dephosphorylation [GO:0006470]; protein kinase B signaling [GO:0043491]; protein stabilization [GO:0050821]; regulation of B cell apoptotic process [GO:0002902]; regulation of cellular component size [GO:0032535]; regulation of myeloid cell apoptotic process [GO:0033032]; regulation of neuron projection development [GO:0010975]; regulation of protein kinase B signaling [GO:0051896]; regulation of protein stability [GO:0031647]; regulation of synaptic transmission, GABAergic [GO:0032228]; rhythmic synaptic transmission [GO:0060024]; social behavior [GO:0035176]; synapse assembly [GO:0007416]; synapse maturation [GO:0060074]
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GO - Molecular function (MF):
anaphase-promoting complex binding [GO:0010997]; enzyme binding [GO:0019899]; identical protein binding [GO:0042802]; inositol-1,3,4,5-tetrakisphosphate 3-phosphatase activity [GO:0051717]; lipid binding [GO:0008289]; PDZ domain binding [GO:0030165]; phosphatidylinositol-3,4,5-trisphosphate 3-phosph...
anaphase-promoting complex binding [GO:0010997]; enzyme binding [GO:0019899]; identical protein binding [GO:0042802]; inositol-1,3,4,5-tetrakisphosphate 3-phosphatase activity [GO:0051717]; lipid binding [GO:0008289]; PDZ domain binding [GO:0030165]; phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase activity [GO:0016314]; phosphatidylinositol-3,4-bisphosphate 3-phosphatase activity [GO:0051800]; phosphatidylinositol-3-phosphatase activity [GO:0004438]; phosphoprotein phosphatase activity [GO:0004721]; protein kinase binding [GO:0019901]; protein serine/threonine phosphatase activity [GO:0004722]; protein tyrosine phosphatase activity [GO:0004725]; ubiquitin-specific protease binding [GO:1990381]
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GO - Cellular component (CC):
apical plasma membrane [GO:0016324]; cell projection [GO:0042995]; cytoplasm [GO:0005737]; cytoplasmic side of plasma membrane [GO:0009898]; cytosol [GO:0005829]; extracellular region [GO:0005576]; myelin sheath adaxonal region [GO:0035749]; neuron projection [GO:0043005]; nucleoplasm [GO:0005654]; ...
apical plasma membrane [GO:0016324]; cell projection [GO:0042995]; cytoplasm [GO:0005737]; cytoplasmic side of plasma membrane [GO:0009898]; cytosol [GO:0005829]; extracellular region [GO:0005576]; myelin sheath adaxonal region [GO:0035749]; neuron projection [GO:0043005]; nucleoplasm [GO:0005654]; nucleus [GO:0005634]; plasma membrane [GO:0005886]; PML body [GO:0016605]; Schmidt-Lanterman incisure [GO:0043220]; synapse [GO:0045202]
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