FIG. 2.

Cell viability in various cell lines transfected with different ORF3 variants. Values are the means ± standard errors of the means (error bars represent 95% confidence interval for the mean) from at least three independent experiments (n ≥ 3). (A) Percentage of cell death in transfected cells. Cell death values that are significantly different (P < 0.05) from the cell death values for eGFP-transfected cells (*) and eGFP-PCV2ORF3-transfected cells (a) are indicated above the bars. (B) Relative protein expression level on a per cell basis as measured by mean fluorescence intensity. The numbers above the bars indicate the average fold differences in mean fluorescence intensities.