This is a view through the opening of the same potassium channel shown in Figure 3B. Notice that the inner core is lined with hydrophilic
amino-acid residues (blue) that interact favorably with the charge on the ion (yellow). The outer areas of the channel contain hydrophobic
amino-acid residues (plum), which interact favorably with the hydrophobic lipids in the membrane.
Note: The coordinates for this protein were determined by x-ray crystallography, and
the image was rendered using SwissPDB Viewer and POV-Ray (see References).
Note: To view the molecule interactively, please click on the button
to the left.