Figure 5
From: Statistical distributions of optimal global alignment scores of random protein sequences
Plots of the tail of the global alignment optimal score distribution. The score frequencies were plotted against the natural logarithm of scores at the tail of the distribution of Figure 1. The three theoretical distributions were indicated in solid lines. The score distribution was fitted with (A) the three-parameter gamma distribution; (B) the normal distribution; and (C) the Gumbel distribution.