Fig. 4.

Probability distribution of $d_{\mathrm{dyad}}$ for each system (blue lines are for protomer A, and orange for protomer B). The green rectangle region is for monomeric systems; the blue region is for dimeric systems. Solid black lines indicate the upper bound for the judgement of whether the dyad is broken or retained. Red solid vertical lines are the distance between ${\mathrm{N}}_{\epsilon }\left(\mathrm{H}41\right)$ and ${\mathrm{S}}_{\mathrm{\gamma }}\left(\mathrm{C}145\right)$ in an X-ray structure (PDBID: 1UK3A). Orange and blue dotted lines are the mode (i.e., the most frequent value) of each probability distribution.