Figure 5 - full size

Figure 5.
FIG. 5. Stereo view of the interactions between residues at pY-1 of the phosphopeptide, shown in brown, and Dok1 (a) or IRS1 (b) PTB domain. Residues involved in important interactions are shown in ball-and-stick representation. The residues interacting with pY-1 are represented as green; the sulfur atom is represented in yellow.