PAN-orama: three convergent views of a eukaryotic deadenylase
2014
Post-transcriptional mRNA regulation is often attained by lengthening or shortening the 3′ poly(A) tail of a transcript. Eukaryotic mRNAs show a spectrum of deadenylation rates, thus allowing intricate control of gene expression, but the mechanisms that determine such rates are unclear. Three new studies highlight the structural and biochemical features of a key enzyme in removing poly(A) tails, the PAN2–PAN3 complex, providing clues to how different mRNA deadenylation rates can be achieved.
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