Potassium's Path (IMAGE)

Rockefeller University

Potassium's Path

Caption

The single large protein constituting the Slo2.2 channel has four-fold symmetry, shown above from the side. To leave the cell, a potassium ion must first pass through the gating ring (lower half) of the channel, then through the membrane-spanning domain (top half).

Credit

Laboratory of Molecular Neurobiology and Biophysics/Nature

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