Figure 1.

Stereoview of a ribbon trace showing the rat endophilin A2 SH3 domain structure. The color scheme runs from blue at the N-terminus (residue 305 in the endophilin sequence) to red at the C-terminus (residue 368) of the domain. In this view, the RT loop can be seen at the far right side of the molecule (cyan) and the Src loop extends from the plane of the page directly toward the viewer (yellow–green). The ligand-binding groove lies between these two loops. All figures were produced using PyMOL (DeLano, 2002 ▶).