Figure 2.

A representative forward trajectory of the neck with PDB 1CZ7 as the pre- and 1N6M as the post-stroke structure. The same trajectory was used for the forward case in Figs. 4 and 5. (A) Major bond pattern. (B, C, and D) Orientation angles defined in Fig. 1. Three vertical dashed lines numbered 1–3 mark the substep events noted in Fig. 5.