Figure 6.
RGS2 amino acids 79–116 are sufficient to inhibit cellular protein synthesis. (A and B) H9c2 cardiomyoblasts (A) and MCF-7 adenocarcinoma cells (B) were infected with adenovirus (MOI = 4) encoding GFP (control), RGS2, or an RGS2 minigene for 48 h and used in a [3H]leucine protein synthesis assay as described in Materials and methods. The data were calculated as cpm/µg of total protein, normalized as a percentage of control, and are expressed as the mean ± SEM of five independent experiments performed in triplicate. *, P < 0.05 versus control (one-sample t test).