MUC13 and infection: The gene for mucin 13 (MUC13), a transmembrane mucin glycoprotein, which is highly expressed on the surface of mucosal epithelial cells in the small and large intestines (33, 34), was upregulated [log2(FC) > 1] at 6, 12, and 24 hours post-infection, but this upregulation was only statistically significant at 24-hours post-infection.