RAC-gamma serine/threonine-protein kinase is an enzyme that in humans is encoded by the AKT3gene.[5][6]
Function
The protein encoded by this gene is a member of the AKT subfamily of serine/threonine protein kinases. AKT kinases are known to be regulators of cell signaling in response to insulin and growth factors. They are involved in a wide variety of biological processes including cell proliferation, differentiation, apoptosis, tumorigenesis, as well as glycogen synthesis and glucose uptake. This kinase has been shown to be stimulated by platelet-derived growth factor (PDGF), insulin, and insulin-like growth factor 1 (IGF1). Alternatively splice transcript variants encoding distinct isoforms have been described.[7] Mice lacking Akt3 have a normal glucose metabolism (no diabetes), have approximately normal body weight, but have a 25% reduction in brain mass. Incidentally, Akt3 is highly expressed in the brain.
^Hodgkinson CP, Sale EM, Sale GJ (2002). "Characterization of PDK2 activity against protein kinase B gamma". Biochemistry. 41 (32): 10351–9. doi:10.1021/bi026065r. PMID12162751.
Borgatti P, Zauli G, Colamussi ML, Gibellini D, Previati M, Cantley LL, Capitani S (1998). "Extracellular HIV-1 Tat protein activates phosphatidylinositol 3- and Akt/PKB kinases in CD4+ T lymphoblastoid Jurkat cells". Eur. J. Immunol. 27 (11): 2805–11. doi:10.1002/eji.1830271110. PMID9394803. S2CID6303471.
Murthy SS, Tosolini A, Taguchi T, Testa JR (2000). "Mapping of AKT3, encoding a member of the Akt/protein kinase B family, to human and rodent chromosomes by fluorescence in situ hybridization". Cytogenet. Cell Genet. 88 (1–2): 38–40. doi:10.1159/000015481. PMID10773662. S2CID556711.
Kapasi AA, Fan S, Singhal PC (2001). "Role of 14-3-3epsilon, c-Myc/Max, and Akt phosphorylation in HIV-1 gp 120-induced mesangial cell proliferation". Am. J. Physiol. Renal Physiol. 280 (2): F333–42. doi:10.1152/ajprenal.2001.280.2.F333. PMID11208609. S2CID29992656.
Zinda MJ, Johnson MA, Paul JD, Horn C, Konicek BW, Lu ZH, Sandusky G, Thomas JE, Neubauer BL, Lai MT, Graff JR (2001). "AKT-1, -2, and -3 are expressed in both normal and tumor tissues of the lung, breast, prostate, and colon". Clin. Cancer Res. 7 (8): 2475–9. PMID11489829.
Hodgkinson CP, Sale EM, Sale GJ (2002). "Characterization of PDK2 activity against protein kinase B gamma". Biochemistry. 41 (32): 10351–9. doi:10.1021/bi026065r. PMID12162751.