Target:PI3 Kinase P85α
Fields:EGFR tyrosine kinase inhibitor resistance;Endocrine resistance;Platinum drug resistance;ErbB signaling pathway;Ras signaling pathway;Rap1 signaling pathway;cAMP signaling pathway;Chemokine signaling pathway;HIF-1 signaling pathway;FoxO signaling pathway;Phosphatidylinositol signaling system;Sphingolipid signaling pathway;Phospholipase D signaling pathway;Autophagy - animal;mTOR signaling pathway;PI3K-Akt signaling pathway;AMPK signaling pathway;Apoptosis;Longevity regulating pathway;Longevity regulating pathway - multiple species;Cellular senescence;Axon guidance;VEGF signaling pathway;Osteoclast differentiation;Focal adhesion;Signaling pathways regulating pluripotency of stem cells;Platelet activation;Neutrophil extracellular trap formation;Toll-like receptor signaling pathway;C-type lectin receptor signaling pathway;JAK-STAT signaling pathway;Natural killer cell mediated cytotoxicity;T cell receptor signaling pathway;>
Gene Name:PIK3R1
Protein Name:Phosphatidylinositol 3-kinase regulatory subunit alpha
Human Gene Id:5295
Human Swiss Prot No:P27986
Mouse Gene Id:18708
Mouse Swiss Prot No:P26450
Rat Gene Id:25513
Rat Swiss Prot No:Q63787
Immunogen:The antiserum was produced against synthesized peptide derived from human PI3-kinase p85-alpha. AA range:573-622
Specificity:PI 3-kinase p85α Polyclonal Antibody detects endogenous levels of PI 3-kinase p85α protein.
Formulation:Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Source:Polyclonal, Rabbit,IgG
Dilution:WB 1:500-2000 IHC 1:100 - 1:300. IF 1:200 - 1:1000. ELISA: 1:5000. Not yet tested in other applications.
Purification:The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Concentration:1 mg/ml
Storage Stability:-15°C to -25°C/1 year(Do not lower than -25°C)
Other Name:PIK3R1;GRB1;Phosphatidylinositol 3-kinase regulatory subunit alpha;PI3-kinase regulatory subunit alpha;PI3K regulatory subunit alpha;PtdIns-3-kinase regulatory subunit alpha;Phosphatidylinositol 3-kinase 85 kDa regulatory subunit alph
Observed Band(KD):85kD
Background: Phosphatidylinositol 3-kinase phosphorylates the inositol ring of phosphatidylinositol at the 3-prime position. The enzyme comprises a 110 kD catalytic subunit and a regulatory subunit of either 85, 55, or 50 kD. This gene encodes the 85 kD regulatory subunit. Phosphatidylinositol 3-kinase plays an important role in the metabolic actions of insulin, and a mutation in this gene has been associated with insulin resistance. Alternative splicing of this gene results in four transcript variants encoding different isoforms. [provided by RefSeq, Jun 2011],
Function:disease:Defects in PIK3R1 are a cause of severe insulin resistance.,domain:The SH3 domain mediates the binding to CBLB, and to HIV-1 Nef.,function:Binds to activated (phosphorylated) protein-Tyr kinases, through its SH2 domain, and acts as an adapter, mediating the association of the p110 catalytic unit to the plasma membrane. Necessary for the insulin-stimulated increase in glucose uptake and glycogen synthesis in insulin-sensitive tissues.,PTM:Polyubiquitinated in T-cells by CBLB; which does not promote proteasomal degradation but impairs association with CD28 and CD3Z upon T-cell activation.,similarity:Belongs to the PI3K p85 subunit family.,similarity:Contains 1 Rho-GAP domain.,similarity:Contains 1 SH3 domain.,similarity:Contains 2 SH2 domains.,subunit:Heterodimer of a p110 (catalytic) and a p85 (regulatory) subunits. Interacts with phosphorylated TOM1L1. Interacts with phosphorylat
Subcellular Location:nucleus,cytoplasm,cis-Golgi network,cytosol,plasma membrane,cell-cell junction,phosphatidylinositol 3-kinase complex,phosphatidylinositol 3-kinase complex, class IA,membrane,perinuclear endoplasmic reticulum membrane,
Expression:Isoform 2 is expressed in skeletal muscle and brain, and at lower levels in kidney and cardiac muscle. Isoform 2 and isoform 4 are present in skeletal muscle (at protein level).