Figure 1

Sources of predicted human protein interactions. (a) The number of human protein interactions predicted by the interaction maps from each model organism. (b) The number of human protein interactions predicted by the core higher-confidence interactions from each organism. As explained in the text, core interactions are those that reconfirmed when retested (worm), or had an interaction score of greater than 0.5 (fly) or were identified more than once in a single assay (yeast, worm).