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Figure 1.
Fig. 1. (a) Global view of the transmembrane helical
region of the refined bovine rhodopsin structure. The
cytoplasmic surface is shown in the upper side. The four
water-binding sites (Wat1-4) include seven water molecules
(light blue spheres). Details of the sites are summarized in
Table 2. (b) Detailed view of the Wat1 site. The residues
surrounding Wat1a, -b, and -c are shown as ball-and-stick
representation in standard atom colors. Colors of the stick are
yellow for the conserved residues, cyan for Ala-124, and green
for Phe-261. Numbers in parentheses are according to ref. 18.
Figures were prepared with MOLSCRIPT (38) and RASTER3D (39).
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