Fig. 2. Connectivity distribution P(k) for the protein
interaction networks of (A) the yeast S. cerevisiae, (B) the nematode
C. elegans and (C) the fly D. melanogaster from The BioGRID
(version 2.0.20;
http://www.thebiogrid.org/).
The colors in B correspond to the node-colors in
Fig. 1; nodes with a
connectivity of one are blue, a connectivity between two and nine is green,
and highly connected nodes (
10) are red.