Figure 1. Serum starvation induces ZBP-89 and p53 expression. AGS (gastric carcinoma) cells were cultured in serum-free F-12 medium for the indicated times, and immunoblots were used to detect the expression profiles of ZBP-89, p53, and p14ARF. Blotting was with Rabbit-anti-ZBP-89 antibody. For detection use HRP conjugated Gt-anti-Rabbit IgG. See Bai and Merchant (2001) for additional details.