Question:
What is selectivity due to in the K+ channel
Author: Rhianna BriantAnswer:
Selectivity of K+ is due to a hydration compensation mechanism, rings of oxygen are placed to compensate for loss of K+ hydration shell but not Na+ hydration shell (Na+ is too small to fit into the ring) controlled by a gating mechanism, minor structural changes that serve to obstruct the entrance to the pore.
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