Nature Biotechnology, Published online: 15 July 2026; doi:10.1038/s41587-026-03228-8
Adenosine deaminases acting on RNA (ADARs) have not been previously exploited for DNA adenine base editing in mammals. We developed a single-nucleotide-resolution adenine base editor (snuABE) that uses ADAR and customized guide RNAs to precisely convert adenines to guanines on DNA targets with minimal bystander editing.