SARS-CoV-1–human and SARS-CoV-2–human network. The network includes only interactions between SARS-CoV-1/2 proteins and human targets. Human targets are annotated with level-one Reactome ontology, as shown in legend. Only targets with degree equal or higher than 5 are labeled. Diamond SARS-CoV-1 nodes represent RNA molecules. SARS-CoV-1 specific strains include strains PC4-145, Frankfurt 1, Urbani, TJF, HB and GZ02. Gray nodes are annotated with pathways that are not enriched in this network. In the network, the leftmost arc shows human proteins targeted only by SARS-CoV-1 proteins, the vertical line made of yellow nodes indicates SARS-CoV-1 proteins, the S-shaped arc shows human proteins targeted both by SARS-CoV-1 and SARS-CoV-2 proteins, the vertical line made of red nodes indicates SARS-CoV-2 proteins, and the two right arcs show proteins targeted only by SARS-CoV-2, with the rightmost arc including only proteins with degree equal or higher than 5.