Relationship between structural complementarity and alignment accuracy in the selected subset. The selected models correspond to those described in Figure 7. (A) The structural complementarity, ΔRMSDSEQ = (RMSDSEQ.2.1-RMSDSEQ.2.2), of selected SEQ models (empty circles) is shown as a function of SEQ alignment accuracy. The curve for all SEQ models from Figure 4A (black circles) is shown for comparison. (B) Difference between observed structural complementarity in SEQ models (ΔRMSDSEQ) and maximum achievable structural complementarity (ΔRMSDSTR) as a function of SEQ alignment accuracy is shown for the selected models (empty circles) and for all models (black circles).