The transcriptional activation of the human copper/zinc superoxide dismutase gene by 2,3,7,8-tetrachlorodibenzo-p-dioxin through two different regulator sites, the antioxidant responsive element and xenobiotic responsive element.

Abstract excerpt

Cu/Zn superoxide dismutase (SOD1) catalyzes the dismutation of superoxide radicals produced during biological oxidations and environmental stress. The most toxic dioxin, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), induces SOD1 in human liver cells. Deletion analyses showed that the promoter region between -400 and -239 was responsible for the induction, in which two different characteristic regulatory elements,...

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