Interestingly, proteins that were clear homologs to Rho, Rab and Arf GTPases showed upregulation of gene expression throughout infection, whereas Ras GTPase homologs were upregulated at 8 h and 24 h post infection, while Ras regulators and small GTPase-like genes showed no convincing trend in gene expression (Figure 4B). This evidence concerns the gene CDKN2A and infection.