KEGG pathway enrichment analysis displayed that pathways in cancer (FDR=3.11 E-12), intestinal immune network for IgA production (FDR=1.12E-07), colorectal cancer (FDR=6.51E-05), and pathogenic Escherichia coli infection (FDR=2.28E-03) were four significantly enriched pathways. The gene discussed is CD79A; the disease is escherichia coli infection.