Cellular RNAs are edited with high specificity using engineered ADAR-recruiting RNAs.
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In this article, the scientists present an approach, called leveraging endogenous ADAR for programmable editing of RNA (LEAPER), that employs short engineered ADAR-recruiting RNAs (arRNAs) to recruit native ADAR1 or ADAR2 enzymes to change a specific adenosine to inosine. They pave the way for a single-molecule system, LEAPER, enabling precise, efficient RNA editing with broad applicability for therapy and basic research.