LYS6K2 (1082949-67-4) is a selective inhibitor of the p70 ribosomal S6 kinase (S6K).1 Blocks the phosphorylation of S6 at concentrations as low as 0.1-0.3 μM with no activity at GSK3β and Erk1/2 at 10 μM.2 LYS6K2 is a useful tool to dissect insulin receptor signaling pathways and was employed to show that the action of mTORC1 on SREB P-1c expression is not mediated by S6K.2 Cell permeable.
1) Fenton et al. (2011), Functions and regulation of the 70kDa ribosomal S6 kinases; Int. J. Biochem. Cell Biol., 43 47
2) Li et al. (2010), Bifurcation of insulin signaling pathway in the rat liver: mTORC1 required for stimulation of lipogenesis, but no inhibition of gluconeogenesis; Proc. Natl. Acad. Sci. USA 107 3441