Figure 5
Global sample characterization and comparison of regulated proteins in S9 human bronchial epithelial cell infection experiments. (a) A principle component analysis (PCA) plot of the total peak area over the assays is shown for all samples from the S9 human bronchial epithelial cell infection experiment. The axis labeling lists variance explained by the corresponding principle components. The ellipses indicate the calculated 95% probability region for a bivariate normal distribution with an average center of groups. Samples were measured in biological quadruplicates. A replicate of the 24 h p.i. sample was excluded due to technical reasons. (b) The Venn diagrams summarize the significantly 1.5-fold down- or up-regulated proteins of all samples (normalized to the non-adherent control sample).
