Ion Selectivity in the KcsA K+ Channel (IMAGE)

Rockefeller University Press

Ion Selectivity in the KcsA K+ Channel

Caption

(Left) K+ ion (magenta sphere) is shown bound in the S2 site of the selectivity filter (green ribbon). The backbone carbonyl groups of the S2 site are shown as spheres. (Right) View looking down the pore axis. Atoms are shown in space-filling format.

Credit

Dixit, P.D., and D. Asthagiri. 2011. J. Gen. Physiol. doi:10.1085/jgp.201010533.

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