Contact: Shawna Williams
Johns Hopkins Medicine
Caption: The twisting (blue arrows) of the red portion of the zinc ion channel allows the opening and closing of its gate. Left: the channel is open to the inside of the cell, allowing zinc (green) to flow into its binding site (pink star) after hydrogen flows out. Right: the channel is open to the outside of the cell, allowing zinc to flow out and hydrogen to flow in.
Credit: Fu Lab, Johns Hopkins Medicine
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