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FEBS Lett. 1996 Apr 8;384(1):61-4.

A20, an inhibitor of cell death, self-associates by its zinc finger domain.

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Laboratory of Molecular Biology, University of Gent, Belgium.


A20 is a primary response gene which is induced after monocyte adherence or cytokine stimulation of a variety of cells. The A20 protein belongs to a novel class of Cys2/Cys2 zinc finger proteins, and has been characterized as an inhibitor of both apoptotic and necrotic cell death. In order to clarify its molecular mechanism of action, we used the yeast-based two-hybrid system to screen for A20-associated proteins. Here we report that A20 is able to self-associate, and demonstrate that the latter interaction is mediated by its zinc finger domain.

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