Disruption in the AU motif of the mouse TNF-α 3′ UTR correlates with reduced TNF production by macrophages in vitro

1993 
Abstract Many cytokine mRNAs exhibit a conserved, AU-rich motif in the 3'-untranslated region (UTR) of the molecule. Such sequence elements have been implicated in the regulation of mRNA turnover and as potential translational regulators. We report on the identification of a 3 base pair insertion which disrupts the AU motif of the TNF-alpha gene in the NZW, B10.KPA44, SM/J and Mus spretus mice and an insertion of an 8 base pair sequence into the 3' AU motif of the IL-10 gene in the Mus Spretus mouse. The mutation in the AU motif of the TNF-alpha gene correlates with reduced production of this cytokine by peritoneal macrophages from these mouse strains.
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