Figure 3.

Overlap of PPIs and proteins in human PPI databases. (A) Pairwise overlap of protein interactions across databases is shown in cells. The number of non-redundant direct PPIs present in each database is shown in parentheses for each database. (B) Pairwise overlap of proteins across databases is shown in the cells. The number of non-redundant proteins present in each database is shown in parenthesis for each database.