IONCHANNEL

Ion channel

Ion channels are pore-forming membrane proteins whose functions include establishing a resting membrane potential, shaping action potentials and other electrical signals by gating the flow of ions across the cell membrane, controlling the flow of ions across secretory and epithelial cells, and regulating cell volume. Ion channels are present in the membranes of all cells. Ion channels are considered to be one of the two traditional classes of ionophoric proteins, with the other class known as ion transporters .

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ion channel

Noun

  1. a protein complex or single protein which penetrates a cell membrane and catalyzes the passage of specific ions through that membrane.


The above text is a snippet from Wiktionary: ion channel
and as such is available under the Creative Commons Attribution/Share-Alike License.

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