PI3 Kinase p85 (19H8) Rabbit mAb Usage And Synthesis

Source

Rabbit

Reactivity

Human;Mouse;Rat

Background

Phosphoinositide 3-kinase catalyzes the production of phosphatidylinositol-3,4,5-triphosphate by phosphorylating phosphatidylinositol, phosphatidylinositol-4-phosphate, and phosphatidylinositol-4,5-bisphosphate. Growth factors and hormones trigger this phosphorylation event, which in turn coordinates cell growth, cell cycle entry, cell migration, and cell survival. PTEN reverses this process, and research studies have shown that the PI3K signaling pathway is constitutively activated in human cancers that have loss of function of PTEN. PI3Ks are composed of a catalytic subunit and a regulatory subunit. Various isoforms of the catalytic subunit have been isolated, and the regulatory subunits that associate with p110α, p110β, and p110δ are p85α and p85β. In contrast, p110γ associates with a p101 regulatory subunit that is unrelated to p85. Furthermore, p110γ is activated by βγ subunits of heterotrimeric G proteins.

References

[1] Cantley, L.C. (2002) Science 296, 1655-7.
[2] Simpson, L. and Parsons, R. (2001) Exp Cell Res 264, 29-41.
[3] Neri, L.M. et al. (2002) Biochim Biophys Acta 1584, 73-80.
[4] Stoyanov, B. et al. (1995) Science 269, 690-3.

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