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gate |
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gate [gāt] 1 n, an electronic circuit that passes a pulse only when a signal (the gate pulse) is present at a second input. 2 n, a mechanism for opening or closing a protein channel in a cell membrane, regulated by a signal such as increased concentration of a neurotransmitter, change in electrical potential, or physical binding of a ligand molecule to the protein to cause a conformational change in the protein molecule. 3 v, to open and close selectively and function as a gate. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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