Figure 3 - full size

 

Figure 3.
Figure 3. Stereo representations of the hapten interactions in the antigen-binding pocket. (a) Hydrogen bonds are shown as broken green lines. Arg^H100 forms an apparent cation-π sandwich with Tyr^L32 and the phenyl ring in the hapten[21], and prevents further interactions of the hapten with CDR L1 or L2. (b) The side view of the binding pocket shows that the majority of the side-chain interactions are derived from the heavy chain. His^H58 stacks against the second phenyl ring in the substrate. Leu^L96 has been omitted from this view for clarity.

The above figure is reprinted by permission from Elsevier: J Mol Biol (2001, 314, 93-0) copyright 2001.