Figure 5
From: The actions of exogenous leucine on mTOR signalling and amino acid transporters in human myotubes

Effect of leucine, insulin or in combination, on the activation of eIF4G. Primary human myotubes were untreated or incubated in the presence of leucine (Leu; 5 mM), insulin (Ins; 100 nM) or co-treated with leucine and insulin (Leu + Ins) for 30 min (A), 3 h (B) or 24 h (C). Phosphorylation levels of eIF4G at Ser1108 were determined by Western blot analysis relative to total levels of eIF4G. Data are presented as mean ± SEM (n = 6). *P < 0.05, **P < 0.01, ***P < 0.001 versus untreated.