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Keyword - Ion transport (KW-0406)

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Protein involved in the transport of ions. Such proteins are usually transmembrane and mediate a movement of ions across cell membranes. Transport may be passive (facilitated diffusion; down the electrochemical gradient), or active (against the electrochemical gradient). Active transport requires energy which may come from light, oxidation reactions, ATP hydrolysis, or cotransport of other ions or molecules.


Biological process


ion transport [ GO:0006811 ]


Ion transportTransportBiological process
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