Summarized results showing the degree of similarity of the known binding partners for various properties within different subsets.

*eukaryotic intracellular (nuclear and cytosolic) complexes.
†archeal, bacterial and eukaryotic intracellular (nuclear and cytosolic) complexes (includes the entire subset of 59 binary complexes).
‡archeal, bacterial and eukaryotic extracellular complexes, or intracellular complexes of organellar proteins or segments of transmembrane proteins.
§maximal set comprised of † and ‡ ; the p-values<0.001 are shown in bold.