KEGG analysis demonstrated that oxidative phosphorylation, protein processing in endoplasmic reticulum, various types of N-glycan biosynthesis, protein processing in endoplasmic reticulum, pathogenic E. coli infection, and mitogen-activated protein kinase (MAPK) signaling pathway–yeast were the dominant signaling pathways in the colistin group (Figure 7B). The gene discussed is WNK2; the disease is escherichia coli infection.