Figure 4 - full size

 

Figure 4.
Figure 4. Functional maps of HsTx1 and [Abu^19,Abu^34]-HsTx1 for Kv1.1 and Kv1.3 channels. These peptide functional maps were deduced from docking simulation experiments using the 3D structures of HsTx1 and [Abu^19,Abu^34]-HsTx1 and modeled structures of the pore regions of mKv1.1 and mKv1.3 channels. Interacting residues from the Kv channels are shown in red. I to IV before channel residue numbering specifies one of the four -subunits forming the functional Kv channels. Color codes: yellow (hydrophobic residues), light green (polar residues), and blue (basic residues). Swiss-Prot accession codes used are P16388 (mKv1.1) and P16390 (mKv1.3). (A) Functional maps for HsTx1 (left) and [Abu^19,Abu^34]-HsTx1 (right) on Kv1.1. (B) Functional maps for HsTx1 (left) and [Abu^19,Abu^34]-HsTx1 (right) on Kv1.3. The functional maps of both peptides involve mainly their -sheet faces.

The above figure is reprinted by permission from John Wiley & Sons, Inc.: Proteins (2005, 61, 1010-1023) copyright 2005.