| Background: | 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. 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 AIP1 to suppress AKT1 activation. Dephosphorylates tyrosine-phosphorylated focal adhesion kinase and inhibits cell migration and integrin-mediated cell spreading and focal adhesion formation. May be a negative regulator of insulin signaling and glucose metabolism in adipose tissue. |
| Synonyms: | MMAC1; Mutated in multiple advanced cancers 1; Protein-tyrosine phosphatase PTEN; TEP1; |
| UniProt Protein Function: | PTEN: a phosphoinositide 3-phosphatase (PIP3) and a tumor suppressor implicated in a wide variety of human cancers. Dephosphorylates inositol phospholipids generated by the activation of the phosphoinositide 3 kinase (PI3K). A major negative regulator of the PI3K/Akt signaling pathway. Possesses a C-terminal regulatory domain that contains three phosphorylation sites which may regulate its stability. |
| UniProt Protein Details: | Protein type:Carbohydrate Metabolism - inositol phosphate; EC 3.1.3.48; Phosphatase, lipid; Nuclear receptor co-regulator; Motility/polarity/chemotaxis; EC 3.1.3.16; EC 3.1.3.67; Tumor suppressor Chromosomal Location of Human Ortholog: 10q23.3 Cellular Component: nucleoplasm; postsynaptic membrane; PML body; internal side of plasma membrane; neuron projection; cell projection; mitochondrion; cytoplasm; plasma membrane; extracellular region; dendritic spine; cytosol; nucleus Molecular Function:phosphatidylinositol-3-phosphatase activity; phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase activity; inositol-1,3,4,5-tetrakisphosphate 3-phosphatase activity; platelet-derived growth factor receptor binding; magnesium ion binding; protein tyrosine phosphatase activity; protein serine/threonine phosphatase activity; protein kinase binding; PDZ domain binding; protein binding; enzyme binding; phosphatidylinositol-3,4-bisphosphate 3-phosphatase activity; protein tyrosine/serine/threonine phosphatase activity; phosphoprotein phosphatase activity; lipid binding Biological Process: central nervous system development; male mating behavior; nerve growth factor receptor signaling pathway; prepulse inhibition; response to arsenic; regulation of cellular component size; heart development; anaphase-promoting complex activation during mitotic cell cycle; Wnt receptor signaling pathway through beta-catenin; T cell receptor signaling pathway; regulation of B cell apoptosis; myelin maintenance in the central nervous system; response to glucose stimulus; negative regulation of axonogenesis; response to drug; rhythmic synaptic transmission; fibroblast growth factor receptor signaling pathway; dentate gyrus development; negative regulation of myelination; social behavior; forebrain morphogenesis; negative regulation of organ growth; response to ethanol; response to zinc ion; inositol phosphate dephosphorylation; phosphatidylinositol biosynthetic process; endothelial cell migration; positive regulation of transcription factor activity; multicellular organismal response to stress; negative regulation of apoptosis; negative regulation of phagocytosis; synapse maturation; inositol phosphate metabolic process; apoptosis; regulation of protein stability; locomotory behavior; negative regulation of cell size; platelet-derived growth factor receptor signaling pathway; protein amino acid dephosphorylation; regulation of myeloid cell apoptosis; response to estradiol stimulus; negative regulation of cell proliferation; locomotor rhythm; learning and/or memory; synaptogenesis; negative regulation of protein amino acid phosphorylation; phospholipid metabolic process; positive regulation of cell proliferation; brain morphogenesis; protein kinase B signaling cascade; nerve-nerve synaptic transmission; angiogenesis; negative regulation of cell migration; response to nutrient; negative regulation of epithelial cell proliferation; aging; cardiac muscle development; epidermal growth factor receptor signaling pathway; cell migration; phosphoinositide-mediated signaling; negative regulation of protein kinase B signaling cascade; protein stabilization; central nervous system neuron axonogenesis; maternal behavior; negative regulation of focal adhesion formation; response to ATP; memory; cell proliferation; G1/S-specific negative regulation of cyclin-dependent protein kinase activity; innate immune response; phosphoinositide dephosphorylation; regulation of cyclin-dependent protein kinase activity; negative regulation of phosphoinositide 3-kinase cascade Disease: Meningioma, Familial, Susceptibility To; Thyroid Carcinoma, Follicular; Melanoma, Cutaneous Malignant, Susceptibility To, 1; Bannayan-riley-ruvalcaba Syndrome; Cowden Syndrome 1; Squamous Cell Carcinoma, Head And Neck; Prostate Cancer; Glioma Susceptibility 2; Vacterl Association With Hydrocephalus; Endometrial Cancer; Macrocephaly/autism Syndrome |
| NCBI Summary: | This gene was identified as a tumor suppressor that is mutated in a large number of cancers at high frequency. The protein encoded this gene is a phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase. It contains a tensin like domain as well as a catalytic domain similar to that of the dual specificity protein tyrosine phosphatases. Unlike most of the protein tyrosine phosphatases, this protein preferentially dephosphorylates phosphoinositide substrates. It negatively regulates intracellular levels of phosphatidylinositol-3,4,5-trisphosphate in cells and functions as a tumor suppressor by negatively regulating AKT/PKB signaling pathway. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P60484 |
| NCBI GenInfo Identifier: | 42560209 |
| NCBI Gene ID: | 5728 |
| NCBI Accession: | P60484.1 |
| UniProt Secondary Accession: | P60484,O00633, O02679, Q6ICT7, B2R904, F2YHV0, |
| UniProt Related Accession: | P60484 |
| Molecular Weight: | 19,796 Da |
| NCBI Full Name: | Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN |
| NCBI Synonym Full Names: | phosphatase and tensin homolog |
| NCBI Official Symbol: | PTEN |
| NCBI Official Synonym Symbols: | BZS; DEC; CWS1; GLM2; MHAM; TEP1; MMAC1; PTEN1; 10q23del |
| NCBI Protein Information: | phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN; mitochondrial PTENalpha; phosphatase and tensin-like protein; mutated in multiple advanced cancers 1; mitochondrial phosphatase and tensin protein alpha; MMAC1 phosphatase and tensin homolog deleted on chromosome 10; phosphatidylinositol-3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN |
| UniProt Protein Name: | Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN |
| UniProt Synonym Protein Names: | Mutated in multiple advanced cancers 1; Phosphatase and tensin homolog |
| Protein Family: | Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase |
| UniProt Gene Name: | PTEN |
| UniProt Entry Name: | PTEN_HUMAN |
