Fig. 3

Expression profiles (heatmaps) of viral defence response genes and apoptosis genes in PK-15 cells expressing NS4A. The samples NC_1, NC_2, NC_3 and NS4A_1, NS4A_2, NS4A_3 are similar, but three independent experiments were performed. Each column is a sample, and each row represents the expression level of the same gene in different samples. The colour in the heatmap represents the gene expression change. Red indicates high gene expression, green indicates low gene expression, and white indicates unaltered gene expression. The DEGs are labelled on the right of the heatmap. a Heatmap of viral defence response genes. b Heatmap of apoptosis genes in response to viral infection