Figure 6. Capsid proteins are structurally distant from generic proteins.

Each curve plots the empirical cumulative fraction distribution of distances between one set of 56 proteins and their nearest neighbor in the complementary set. The comparison between the capsid set and the non-capsid proteins is colored in blue, while those from the 10,000 permutation tests are colored in grey. The average empirical cumulative fraction distribution of the 10,000 permutation tests is colored in red. The capsid set is clearly further away from its non-self set compared to what happens with random chances.