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metallothionein

Pronunciation: me'tal-o-thi'o-nen

Definition: Any of a group of small proteins, rich in cysteinyl residues, that is synthesized in the liver and kidney in response to the presence of divalent ions (zinc, mercury, cadmium, copper) and that binds these ions tightly; of importance in ion transport and detoxification; the apoprotein is thionein.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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