p53 binds selectively to the 5' untranslated region of cdk4, an RNA element necessary and sufficient for transforming growth factor beta- and p53-mediated translational inhibition of cdk4.

Abstract excerpt

One consequence of transforming growth factor beta (TGF-beta) treatment is inhibition of Cdk4 synthesis, and this is dependent on p53. Here, we show that the 5' untranslated region (UTR) of the cdk4 mRNA is both necessary and sufficient for wild-type p53-dependent TGF-beta-regulated translational inhibition of cdk4. Wild-type p53 bound selectively to the 5' UTR of the cdk4 mRNA and inhibited translation of RNAs...

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