Akt (Phospho-Ser473) polyclonal antibody

Akt, also referred to as PKB or Rac, plays a critical role in controlling survival and apoptosis. This protein kinase is activated by insulin and various growth and survival factors to function in a wortmannin-sensitive pathway involving PI3 kinase. Akt is activated by phospholipid binding and activation loop phosphorylation at Thr308 by PDK1 and by phosphorylation within the carboxy terminus at Ser473. The previously elusive PDK2 responsible for phosphorylation of Akt at Ser473 has been identified as mammalian target of rapamycin (mTOR) in a rapamycin-insensitive complex with rictor and Sin1. Akt promotes cell survival by inhibiting apoptosis through phosphorylation and inactivation of several targets, including Bad, forkhead transcription factors, c-Raf, and caspase-9. PTEN phosphatase is a major negative regulator of the PI3 kinase/Akt signaling pathway. LY294002 is a specific PI3 kinase inhibitor. Another essential Akt function is the regulation of glycogen synthesis through phosphorylation and inactivation of GSK-3α and β. Akt may also play a role in insulin stimulation of glucose transport. In addition to its role in survival and glycogen synthesis, Akt is involved in cell cycle regulation by preventing GSK-3β-mediated phosphorylation and degradation of cyclin D1 and by negatively regulating the cyclin dependent kinase inhibitors p27 Kip1 and p21 Waf1/Cip1. Akt also plays a critical role in cell growth by directly phosphorylating mTOR in a rapamycin-sensitive complex containing raptor. More importantly, Akt phosphorylates and inactivates tuberin (TSC2), an inhibitor of mTOR within the mTOR-raptor complex.

RAC-alpha serine/threonine-protein kinase; Protein kinase B; PKB; Protein kinase B alpha; PKB alpha; Proto-oncogene c-Akt; RAC-PK-alpha; AKT1; PKB, RAC

Phosphoinosotode Signaling, PI3K AKT signaling, Protein Kinase C Signaling, Immune Cell Signaling, Warburg Effect, Translational Contral elF4 and p70 S6 Kinase, Regulation of Microtubule Dynamics, T cell receptor signaling, Inhibition of Apoptosis, Insulin &Glucose Signaling, Cell Cycle Control G1 S Checkpoint, Adherens Junction signaling, Mitochondrial Control of Apoptosis, MTOR signaling, ErbB HER Signaling

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE) .

Western blot (WB) analysis of Akt (Phospho-Ser473) polyclonal antibody at 1:5000 dilution Lane1:C6 whole cell lysate (40ug) Lane2:BV2 whole cell lysate (40ug) Lane3:Hela treated with λ-phosphatase whole cell lysate (40ug) Lane4:Hela whole cell lysate (40ug)