FIGURE 4.
Aspartic protease is required for N-terminal product-mediated C-terminal product degradation. RAW macrophages expressing recombinant Myc-tagged C-terminal fragment transduced a retrovirus expressing TM-GFP or Nterm-TM-GFP, incubated for 6 h with DMSO, chloroquine (5 μM), or MG132 (10 μM) (A), or for 12 h with z-FA-fmk (10 μM) or pepstatin A (1 μM) (B); proteins were analyzed with anti-Myc, anti-GFP, or anti–β-actin by immunoblot. Data are representative of three independent experiments.