Figure 3
Static experimental deformation density maps (synchrotron data) in the plane of the six peptide bonds. Upper left to bottom right: D-Pro–Ala1, Ala1–Ala, Ala–Ala3, Ala3–Ala, Ala–L-Pro, L-Pro–D-Pro. Contour lines (full lines = positive, dotted = negative) are 0.1 e Å−3; zero line dashed. |