Abstract
SUMMARYIn vitro transcribed (IVT) mRNA represents a new class of drug in both therapeutics and vaccines. Improving the translation efficiency of IVT mRNA remains a core challenge for mRNA-based applications. Here, using IVT mRNAs with poly(A) tails containing non-A residues which were recently revealed to be widespread in RNA poly(A) tails1,2, we unexpectedly find that non-A residues can effectively promote the mRNA translation. To further support our finding, we provide evidence that non-A residues associated with enhanced mRNA translation efficiency transcriptome-wide in mouse and human cells. Together, our study provides a novel approach to enhance mRNA translation efficiency by inclusion of non-A residues in the mRNA poly(A) tails, holding great potential to promote mRNA-based therapeutics and vaccines.
Publisher
Cold Spring Harbor Laboratory
Cited by
5 articles.
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