Definitions for "Ion channel"
A membrane protein that forms an aqueous pore through which charged ions can cross the membrane.
cell membrane pore allowing for ion passage.
Any transmembrane protein complex that forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient. See also ion pump.
a molecule that moves a specific kind of ion by opening or closing in response to the presence of that ion or certain other chemicals