Metallothionein

A protective protein that binds heavy metals, such as cadmium and lead.
Found on http://www.encyclo.co.uk/local/20095

metallothionein

<biochemistry> Small cysteine rich metal binding protein found in the cytoplasm of many eukaryotes. Synthesis can be induced by heavy metals such as zinc, cadmium, copper and mercury and metallothioneins probably serve a protective function. Metallothionein gene promoters are used in studies of gene expression. ... (18 Nov 1997) ...
Found on http://www.encyclo.co.uk/local/20973

metallothionein

Type: Term Pronunciation: me′tal-ō-thī′ō-nēn Definitions: 1. 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 det...
Found on http://www.medilexicon.com/medicaldictionary.php?t=54617

Metallothionein

Metallothionein (MT) is a family of cysteine-rich, low molecular weight (MW ranging from 500 to 14000 Da) proteins. They are localized to the membrane of the Golgi apparatus. MTs have the capacity to bind both physiological (such as zinc, copper, selenium) and xenobiotic (such as cadmium, mercury, silver, arsenic) heavy metals through the thiol gr...
Found on http://en.wikipedia.org/wiki/Metallothionein
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