Fig. 13
From: Mapping side chain interactions at protein helix termini
Aromatic pair interactions at the C-terminus. Examples of aromatic pair interactions at the C-terminus are mapped, with example structures and global and peak-cluster (*) motif data (Abundance/Overrepresentation/Pvalue). Exemplar width is proportional to motif abundance in the corresponding cluster/geometry, while exemplar colour is proportional to overrepresentation. These interactions include pi-stacking in parallel (C4Y-CCapH) and perpendicular (C3Y-C”F) orientations, as well as cation-pi interactions (C2Y-C”’R, C1H-CCapF)