Figure 6 - full size

 

Figure 6.
Figure 6. Environment of the 11-cis-retinal. (a) Environment of the protonated Schiff base and its counterion Glu113. (b) Environment of the ionone ring and the kinks in H6 and H7 cross-linked by a water molecule.

The above figure is reprinted by permission from Elsevier: J Mol Biol (2004, 343, 1409-1438) copyright 2004.