The cumulative distributions ( a ) and probability density ( b ) of similarities for pairs of TFBS models. The similarities for pairs of models for the same TF are shown by solid lines (data for 85 TFs with the models available in both HOCOMOCO  and JASPAR  databases). The similarities for all possible pairs for 170 assessed models are shown by dashed lines. Different colors correspond to different P-value levels. It is notable that the paired models for the same TF are really closer as compared with the whole set of possible pairs.