Fig. 12
From: Mapping side chain interactions at protein helix termini
Polar pair motifs at (CCap, C”). Four polar pair motifs at (CCap, C”) 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 pairs support Schellman loops and beta- and other turns with SC/SC H-bonds, electrostatic interactions, and salt bridges