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Wig-1 is a p53-induced zinc finger protein. Here we show that human Wig-1 binds long (⩾23bp) dsRNAs with 5′-overhangs. The first zinc finger domain is necessary but not sufficient for this dsRNA-binding in vitro. Wig-1 also binds dsRNA in living cells via zinc fingers 1 and 2. Both zinc fingers 1 and 2 are important for Wig-1-mediated growth suppression. Moreover, Wig-1 binds 21 bp dsRNAs with 3′-protruding...
The p53-induced Wig-1 gene encodes a double stranded RNA-binding zinc finger protein. We generated Saos-2 osteosarcoma cells expressing tetracycline-inducible Flag-tagged human Wig-1. Induction of Wig-1 expression by doxycycline inhibited cell growth in a long-term assay but did not cause any changes in cell cycle distribution nor increased fraction of apoptotic cells. Using co-immunoprecipitation...
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