Figure 7. Interactions between the bound CTX and the channel.
(A) Stereoview showing the CTX receptor region of paddle chimera from the toxin-channel complex shown in stick rendition together with the top parts of the selectivity filter. The bound CTX is shown in orange ribbon trace. Side chains of selected residues of the toxin are shown in purple and are labeled. (B) Shows a view orthogonal to that in (A). Consequently the receptor regions shown in (B) are from the two diagonal subunits of paddle chimera that are not shown in (A).