Ion channel
pore-forming membrane protein that allows the passage of ions through a membrane From Wikipedia, the free encyclopedia
An ion channel is a pore-forming protein that helps to establish and control the small voltage gradient across the plasma membrane of all living cells (see resting potential) by allowing the flow of ions down their electrochemical gradient. They are present in the membranes that surround all biological cells.
An ion channel is an integral membrane protein or more typically an assembly of several proteins.
The 2003 Nobel Prize in Chemistry was awarded to Peter Agre and Roderick MacKinnon for their discovery of ion channels.[1]
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