Figure 6
From: Birth and death of protein domains: A simple model of evolution explains power law behavior

Fit of empirical domain family size distributions to the second-order balanced linear BDIM: the yeast Saccharomyces cerevisiae. A. Distribution of the size of domain families grouped into bins B. Domain family size distribution in double logarithmic coordinates. Magenta line: f i = 11521Γ(i+1.55)/Γ(i+4.27) C. Cumulative distribution function of domain family size. The line shows the prediction of the second-order balanced linear BDIM.