======= PIK3R2 ======= == Gene Information == * **Official Symbol**: PIK3R2 * **Official Name**: phosphoinositide-3-kinase regulatory subunit 2 * **Aliases and Previous Symbols**: N/A * **Entrez ID**: [[https://www.ncbi.nlm.nih.gov/gene/?term=5296|5296]] * **UniProt**: [[https://www.uniprot.org/uniprot/O00459|O00459]] * **Interactions**: [[https://thebiogrid.org/search.php?search=PIK3R2&organism=9606|BioGRID]] * **PubMed articles**: [[https://www.ncbi.nlm.nih.gov/pubmed/?term=gene%20PIK3R2|Open PubMed]] * **OMIM**: [[https://omim.org/entry/603157|Open OMIM]] == Function Summary == * **Entrez Summary**: Phosphatidylinositol 3-kinase (PI3K) is a lipid kinase that phosphorylates phosphatidylinositol and similar compounds, creating second messengers important in growth signaling pathways. PI3K functions as a heterodimer of a regulatory and a catalytic subunit. The protein encoded by this gene is a regulatory component of PI3K. Two transcript variants, one protein coding and the other non-protein coding, have been found for this gene. [provided by RefSeq, Dec 2012]. * **UniProt Summary**: Regulatory subunit of phosphoinositide-3-kinase (PI3K), a kinase that phosphorylates PtdIns(4,5)P2 (Phosphatidylinositol 4,5-bisphosphate) to generate phosphatidylinositol 3,4,5- trisphosphate (PIP3). PIP3 plays a key role by recruiting PH domain-containing proteins to the membrane, including AKT1 and PDPK1, activating signaling cascades involved in cell growth, survival, proliferation, motility and morphology. Binds to activated (phosphorylated) protein-tyrosine kinases, through its SH2 domain, and acts as an adapter, mediating the association of the p110 catalytic unit to the plasma membrane. Indirectly regulates autophagy (PubMed:23604317). Promotes nuclear translocation of XBP1 isoform 2 in a ER stress- and/or insulin- dependent manner during metabolic overloading in the liver and hence plays a role in glucose tolerance improvement (By similarity). {ECO:0000250|UniProtKB:O08908, ECO:0000269|PubMed:23604317}. |RhoGAP| |SH2| |1-phosphatidylinositol-3-kinase regulator activity| |phosphatidylinositol 3-kinase complex| |phosphatidylinositol 3-kinase signaling| |positive regulation of protein import into nucleus| |positive regulation of protein import| |phosphotyrosine residue binding| |phosphatidylinositol phosphorylation| |regulation of phosphatidylinositol 3-kinase activity| |regulation of protein import into nucleus| |receptor tyrosine kinase binding| |regulation of protein import| |regulation of lipid kinase activity| |positive regulation of nucleocytoplasmic transport| |lipid phosphorylation| |vascular endothelial growth factor receptor signaling pathway| |phosphatidylinositol-mediated signaling| |inositol lipid-mediated signaling| |positive regulation of protein localization to nucleus| |regulation of phospholipid metabolic process| |protein phosphatase binding| |cellular glucose homeostasis| |insulin receptor signaling pathway| |regulation of nucleocytoplasmic transport| |phosphatidylinositol biosynthetic process| |regulation of protein localization to nucleus| |immune response-regulating cell surface receptor signaling pathway involved in phagocytosis| |Fc-gamma receptor signaling pathway involved in phagocytosis| |Fc receptor mediated stimulatory signaling pathway| |Fc-gamma receptor signaling pathway| |positive regulation of intracellular protein transport| |cellular response to insulin stimulus| |positive regulation of protein kinase B signaling| |negative regulation of MAPK cascade| |phosphatidylinositol metabolic process| |Fc-epsilon receptor signaling pathway| |T cell receptor signaling pathway| |glucose homeostasis| |carbohydrate homeostasis| |lipid modification| |glycerophospholipid biosynthetic process| |positive regulation of intracellular transport| |regulation of protein kinase B signaling| |glycerolipid biosynthetic process| |response to insulin| |regulation of intracellular protein transport| |Fc receptor signaling pathway| |phospholipid biosynthetic process| |response to endoplasmic reticulum stress| |cellular response to peptide hormone stimulus| |antigen receptor-mediated signaling pathway| |glycerophospholipid metabolic process| |positive regulation of cellular protein localization| |cellular response to peptide| |phagocytosis| |regulation of autophagy| |regulation of small GTPase mediated signal transduction| |regulation of intracellular transport| |phospholipid metabolic process| |leukocyte migration| |glycerolipid metabolic process| |response to peptide hormone| |regulation of lipid metabolic process| |negative regulation of protein phosphorylation| |positive regulation of protein transport| |negative regulation of phosphorylation| |immune response-activating cell surface receptor signaling pathway| |positive regulation of establishment of protein localization| |response to peptide| |immune response-regulating cell surface receptor signaling pathway| |protein heterodimerization activity| |negative regulation of intracellular signal transduction| |transmembrane receptor protein tyrosine kinase signaling pathway| |organophosphate biosynthetic process| |regulation of cellular protein localization| |negative regulation of phosphate metabolic process| |negative regulation of phosphorus metabolic process| |immune response-activating signal transduction| |lipid biosynthetic process| |negative regulation of protein modification process| |immune response-regulating signaling pathway| |cellular response to organonitrogen compound| |cellular response to hormone stimulus| |activation of immune response| |cellular response to nitrogen compound| |regulation of protein transport| |enzyme linked receptor protein signaling pathway| |regulation of peptide transport| |cellular chemical homeostasis| |regulation of establishment of protein localization| |regulation of MAPK cascade| |regulation of cellular catabolic process| |positive regulation of immune response| |regulation of kinase activity| |organophosphate metabolic process| |cellular homeostasis| |response to hormone| |regulation of cellular localization| |cellular lipid metabolic process| |cell migration| |regulation of transferase activity| |positive regulation of transport| |regulation of catabolic process| |response to organonitrogen compound| |positive regulation of intracellular signal transduction| |regulation of protein localization| |negative regulation of cellular protein metabolic process| |cellular response to oxygen-containing compound| |cell motility| |localization of cell| |response to nitrogen compound| |immune effector process| |negative regulation of protein metabolic process| |chemical homeostasis| |positive regulation of immune system process| |regulation of immune response| |lipid metabolic process| |positive regulation of transcription by RNA polymerase II| |cellular response to endogenous stimulus| |negative regulation of signal transduction| |phosphorylation| |locomotion| |negative regulation of cell communication| |negative regulation of signaling| |regulation of protein phosphorylation| |response to endogenous stimulus| |protein transport| |peptide transport| |positive regulation of transcription, DNA-templated| |movement of cell or subcellular component| |response to oxygen-containing compound| |amide transport| |regulation of phosphorylation| |establishment of protein localization| |negative regulation of response to stimulus| |positive regulation of nucleic acid-templated transcription| |positive regulation of RNA biosynthetic process| |homeostatic process| |regulation of immune system process| |positive regulation of signal transduction| |intracellular signal transduction| |cellular response to stress| |positive regulation of RNA metabolic process| |regulation of phosphate metabolic process| |regulation of phosphorus metabolic process| |positive regulation of cell communication| |positive regulation of signaling| |regulation of intracellular signal transduction| |nitrogen compound transport| |regulation of protein modification process| |regulation of transport| |positive regulation of nucleobase-containing compound metabolic process| |positive regulation of macromolecule biosynthetic process| |vesicle-mediated transport| |positive regulation of cellular biosynthetic process| |positive regulation of gene expression| |positive regulation of biosynthetic process| \\ === CRISPR Data === ^Screen^Score^ |[[:results:exp129|Isonicotinamide 500μM R03 exp129]]|1.73| |[[:results:exp247|UM0130462 0.025 to 0.035μM day4 R05 exp247]]|1.78| |[[:results:exp530|Thioridazine 5μM R08 exp530]]|1.85| |[[:results:exp478|Doxorubicin 0.02μM R08 exp478]]|2.14| No correlation found to any other genes in chemogenomics. Global Fraction of Cell Lines Where Essential: 0/739 ^Tissue^Fraction Of Cell Lines Where Essential^ |1290807.0|0/1| |909776.0|0/1| |bile duct|0/28| |blood|0/28| |bone|0/26| |breast|0/33| |central nervous system|0/56| |cervix|0/4| |colorectal|0/17| |esophagus|0/13| |fibroblast|0/1| |gastric|0/16| |kidney|0/21| |liver|0/20| |lung|0/75| |lymphocyte|0/16| |ovary|0/26| |pancreas|0/24| |peripheral nervous system|0/16| |plasma cell|0/15| |prostate|0/1| |skin|0/24| |soft tissue|0/9| |thyroid|0/2| |upper aerodigestive|0/22| |urinary tract|0/29| |uterus|0/5| == Essentiality in NALM6 == * **Essentiality Rank**: 5082 * **Expression level (log2 read counts)**: 6.15 {{:chemogenomics:nalm6 dist.png?nolink |}}