Figure 4. Impact of the number of viral integration on the toxification potential.
The CYP450 constructs are created as 3'-EGFP fusions with additional IRES-neoR cassette. (A) Shown is the survival of EGFP+ HepG2 cells in percent after two days of incubation with 2.9, 9, 29, 90 and 290 µM 4-IPO. For each construct the mean ± SEM is shown from three experiments. (B) Western blot analysis of transduced HepG2 cells. Detection of the fusion proteins was performed with anti-EGFP antibody. ud: undiluted, −1: virus dilution 10−1; −2 virus dilution 10−2; −3: 10−3 virus dilution; −4: virus dilution 10−4; coop: codon-optimized.