An HA tag was fused in frame to the N termini of the mouse Akt1 coding sequences.Akt1/PKB is activated in response to many extracellular signals and play key roles in regulating diverse cellular processes, including cell proliferation, differentiation, apoptosis, angiogenesis and glycogen synthesis etc. Akt1 is activated by the phosphorylation of the T loop of their kinase domain by PDK1 and by phosphorylation of a residue located C-terminal to the kinase domain in the hydrophobic motif. The Akt family of kinases includes Akt1, Akt2 and Akt3.