PLXNA4 and infection: Furthermore, proteins related to the cytoskeleton and cytoskeleton remodeling (KRT2 and PLXNA4) and genes coding for components of the cytoskeleton, KRT13 (LOC100515166), KRT17 (LOC100737113), KRT6A, and BFSP1, were significantly higher expressed after infection with swH1N1 compared to huH1N1 (Supplementary Table S3, S5).