A Topological Description of Hubs in Amino Acid Interaction Networks

Figure 2

Degree distribution for each the three models described by Amaral [2]. The red line follows a power law, a function with a relatively “fat tail” as for scale-free networks. The green line corresponds to truncated scale-free networks because it describes a power law regime followed by a sharp cut-off. The black curve has a fast decaying tail, typically exponential, and corresponds to single-scale networks.