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Translation and decay of eukaryotic mRNAs is controlled by shortening of the poly(A) tail and release of the poly(A)-binding protein Pab1/PABP. The Ccr4-Not complex contains two exonucleases—Ccr4 and Caf1/Pop2—that mediate mRNA deadenylation. Here, using a fully reconstituted biochemical system with proteins from the fission yeast Schizosaccharomyces pombe, we show that Pab1 interacts with Ccr4-Not,...
Precise elimination of maternal mRNAs plays a critical role during the maternal-to-zygotic transition (MZT) to promote developmental processing. Two new studies demonstrate that, in eukaryotes, codon-mediated decay is a conserved mechanism to shape maternal mRNA stability by affecting deadenylation rate in a translation-dependent manner. These studies add to a growing body of literature suggesting...
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