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Figure 1.
Figure 1. Structure of KcsA. The gray lines represent the level
of the cell membrane. KcsA (two subunits shown) is displayed in
a ribbon representation. The TVGYG selectivity filter signature
sequence and residues lining the cavity wall are shown as
ball-and-stick. Ions (green spheres) and water molecules (red
spheres) are covered with an electron density map
(2F[o]–F[c], contoured at 2σ) to validate their positions.
Figure 1. Structure of KcsA. The gray lines represent the level
of the cell membrane. KcsA (two subunits shown) is displayed in
a ribbon representation. The TVGYG selectivity filter signature
sequence and residues lining the cavity wall are shown as
ball-and-stick. Ions (green spheres) and water molecules (red
spheres) are covered with an electron density map (2F[o]–F[c],
contoured at 2σ) to validate their positions.
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