Cellular components, molecular functions, and KEGG pathways were predicted for the common differentially expressed proteins of the host that were shared between any of the three virulent strains (H37Rv, BND433, and JAL2287) after infection at 18 h of incubation. Upper left panel: up-regulated proteins; upper right panel: down-regulated proteins. Lower panel: protein–protein interaction (PPI) networks of protein interactions with Markov clustering in circles were also constructed. Nodes in the diagram represent proteins, and edges represent protein–protein interactions between the nodes. PPI: protein–protein interaction.