Figure 11.

The folding index trajectories for the three loop structures of 1BDD identified in Figure 8. The quality of the data of 1BDD is not optimal. But it appears that in (a), a trajectory tries to go around the center once, in a counterclockwise fashion. In (b) and (c), the circulation is once in a clockwise direction. As a consequence, the kink contribution to the folding index of fully folded protein A should be −2.