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- Title
Superfamilies of evolved and designed networks.
- Authors
Milo, Ron; Itzkovitz, Shalev; Kashtan, Nadav; Levitt, Reuven; Shen-Orr, Shai; Ayzenshtat, Inbal; Sheffer, Michal; Alon, Uri
- Abstract
Complex biological, technological, and sociological networks can be of very different sizes and connectivities, making it difficult to compare their structures. Here we present an approach to systematically study similarity in the local structure of networks, based on the significance profile (SP) of small subgraphs in the network compared to randomized networks. We find several superfamilies of previously unrelated networks with very similar SPs. One superfamily, including transcription networks of microorganisms, represents "rate-limited" information-processing networks strongly constrained by the response time of their components. A distinct superfamily includes protein signaling, developmental genetic networks, and neuronal wiring. Additional superfamilies include power grids, protein-structure networks and geometric networks, World Wide Web links and social networks, and word-adjacency networks from different languages.
- Publication
Science (New York, N.Y.), 2004, Vol 303, Issue 5663, p1538
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.1089167