Figure 3

Superimposition of plots from different positions in a motif. (a) The plot superimposition window of Structure Motivator is shown displaying the φψ distribution for the three central residues of the five-residue 3₁₀ helix in a pentapeptide. The pentapeptide includes the N-cap (position 1) and the C-cap (position 5), the display of which have been suppressed by deselection. Residues are drawn in the order 2 (red), 3 (blue) and 4 (green), so that only the distribution for residue 4 is seen in its entirety. (b) As in the foregoing, but with the order reversed so that position 2 is drawn last and its distribution seen in its entirety. The file used for this figure (‘threeTen5.txt’) is included in the package distributed with the application.