Yanick Crow and colleagues show that mutations in ADAR1 cause the autoimmune disorder Aicardi-Goutières syndrome, accompanied by upregulation of interferon-stimulated genes. ADAR1 encodes an enzyme that catalyzes the deamination of adeonosine to inosine in double-stranded RNA, and the findings suggest a possible role for RNA editing in limiting the accumulation of repeat-derived RNA species.
- Gillian I Rice
- Paul R Kasher
- Yanick J Crow
