Figure 16
From: Birth and death of protein domains: A simple model of evolution explains power law behavior

Comparison of different approximations of the empirical domain family size distribution: Escherichia coli. Magenta line: second-order balanced linear BDIM, f i = 6776Γ(i+0.84)/Γ(i+3.54), Red line: simple BDIM, f i = 528 × 0.87i/i, Cyan line: power law, f i = 602i -1.76.