Figure 2From: Deprivation of arginine by recombinant human arginase in prostate cancer cellsWestern blot analysis of 4E-BP1 and GAPDH (as internal control) in the presence of citrulline, rhArg, or both for 48 h. Hyperphosphorylated (slowly-migrating with higher molecular weight) and hypophosphorylated (fast-migrating) 4E-BP1 proteins were detected.Back to article page