Figure 2.

DOLPHIN transformation: (a) DFG Phe and the four next residues in the sequence are removed; (b) attractive density is generated from selected removed atoms. The transparent blobs represent equipotent contours of the lipophilic (dark-blue) and polar (sea-green) parts of the density; (c) this computational “surgery” dramatically affects the ligand binding pocket shape and size, producing a type-II compatible model.