Modeling the topology of protein interaction networks

Details Modeling the topology of protein interaction networks Modeling the topology of protein interaction networks

2011-07-28

arxiv.org/abs/1107.5816v1

Physical Review E 84 (2011) 016112

Physics

Biological Physics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevE.84.016112

A major issue in biology is the understanding of the interactions between proteins. These interactions can be described by a network, where the proteins are modeled by nodes and the interactions by edges. The origin of these protein networks is not well understood yet. Here we present a two-step model, which generates clusters with the same topological properties as networks for protein-protein interactions, namely, the same degree distribution, cluster size distribution, clustering coefficient and shortest path length. The biological and model networks are not scale free but exhibit small world features. The model allows the fitting of different biological systems by tuning a single parameter.

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