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Review
. 2001 Aug;3(4):577-96.
doi: 10.1089/15230860152542943.

Metal response element (MRE)-binding transcription factor-1 (MTF-1): structure, function, and regulation

D P Giedroc  1 , X Chen, J L Apuy
Affiliations
Review

Metal response element (MRE)-binding transcription factor-1 (MTF-1): structure, function, and regulation

D P Giedroc et al. Antioxid Redox Signal. 2001 Aug.

Abstract

Metal-responsive control of the expression of genes involved in metal metabolism and metal homeostasis allows an organism to tightly regulate the free or bioavailable concentration of beneficial metal ions, such as zinc, copper, and iron, within an acceptable range, while efficiently removing nonbeneficial or toxic metals. Emerging evidence also suggests that metal homeostasis is intimately coupled to the oxidative stress response in many cell types. The expression of genes that encode metallothioneins in all vertebrate cells is strongly induced by potentially toxic concentrations of zinc and cadmium, as well as in response to strong oxidizing agents, including hydrogen peroxide. This induction requires a cis-acting DNA element, termed a metal response element (MRE), and MRE-binding transcription factor-1 (MTF-1), a Cys2-His2 zinc finger protein. This review summarizes recent progress that has been made toward understanding the structure, function, and metalloregulation of mammalian MTF-1. VSports手机版.

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