Figure 3 - full size

 

Figure 3.
Figure 3. Stereo view of the xenon-binding cavity in MBP. The electron density in cyan corresponds to a 2F[obs] -F[calc] map contoured at 2s. The xenon is localized in the cavity away from the lysine and water that mark the end of the cavity at the protein surface. While the presence of many hydrophobic side-chains is often observed in xenon-binding cavities, the proximity of the cavity to the surface is less common.

The above figure is reprinted by permission from Elsevier: J Mol Biol (2002, 322, 425-440) copyright 2002.