HIV-related network modules. Thin lines represent PPI, and thick lines denote DEPs. Nodes indicate protein, and node color denotes expression level. Blue, yellow, and red represent increasingly higher expressions of genes. The color of the edge represents the sign of the co-expressed score. If the sign is positive, the edge color is red, and if it is negative, blue is used. Representative modules for each stage were created using the median value of the co-expressed score and expression level of samples in the same stage. Network module 1 of the Chronic stage was made from 10 network modules listed in the second row.