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Figure 1 | BMC Evolutionary Biology

Figure 1

From: Difference in gene duplicability may explain the difference in overall structure of protein-protein interaction networks among eukaryotes

Figure 1

Degree distribution of PINs in five eukaryote species. Degree distribution P(k) in the PINs of yeast (black square), worm (magenta plus), fly (blue triangle), human (green cross), and malaria parasite (red diamond). For yeast and human PINs, P(k) for MIPS and Rual et al. datasets, respectively, are shown, because they contain the largest numbers of genes among the PINs for each species. The results for the other yeast and human datasets are provided in Additional file 1: Figure S1. A dashed line represents ( k 0 + k ) γ e k / k c with γ = 2.7, k0 = 3.4, and kC = 50.

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