A prenylated dsRNA sensor protects against severe COVID-19
- Science. 2021 Oct 29;374(6567):eabj3624. doi: 10.1126/science.abj3624.
- 1. Medical Research Council-University of Glasgow Centre for Virus Research (CVR), Institute of Infection, Inflammation and Immunity, University of Glasgow, Glasgow, UK.
- 2. Department of Biochemistry, University of Oxford, Oxford, UK.
- 3. Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- 4. Cambridge Institute of Therapeutic Immunology and Infectious Disease, University of Cambridge, Cambridge, UK.
- 5. Roslin Institute, University of Edinburgh, Edinburgh, UK.
- 6. Laboratory of Tropical Diseases, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Sao Paolo, Brazil.
- 7. Department of Education and Research, Oncology Control Centre of Amazonas State (FCECON), Manaus, Amazonas, Brazil.
- 8. Postgraduate Program in Tropical Medicine, Tropical Medicine Foundation Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil.
- 9. Edinburgh Clinical Research Facility, University of Edinburgh, Western General Hospital, Edinburgh, UK.
- 10. Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh, UK.
- 11. Wellcome Centre for Molecular Parasitology, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK.
- 12. Division of Infection & Immunity, Cardiff University, Cardiff, UK.
- 13. NIHR Health Protection Research Unit for Emerging and Zoonotic Infections, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
- 14. Respiratory Medicine, Alder Hey Children's Hospital, Liverpool, UK.
- 15. National Heart and Lung Institute, Imperial College London, London, UK.
- 16. Imperial College Healthcare, National Health Service Trust London, London, UK.
- 17. Intensive Care Unit, Royal Infirmary of Edinburgh, Edinburgh, UK.
- # Contributed equally.
Inherited genetic factors can influence the severity of COVID-19, but the molecular explanation underpinning a genetic association is often unclear. Intracellular Antiviral defenses can inhibit the replication of viruses and reduce disease severity. To better understand the Antiviral defenses relevant to COVID-19, we used interferon-stimulated gene (ISG) expression screening to reveal that 2′-5′-oligoadenylate synthetase 1 (OAS1), through ribonuclease L, potently inhibits severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We show that a common splice-acceptor single-nucleotide polymorphism (Rs10774671) governs whether patients express prenylated OAS1 isoforms that are membrane-associated and sense-specific regions of SARS-CoV-2 RNAs or if they only express cytosolic, nonprenylated OAS1 that does not efficiently detect SARS-CoV-2. In hospitalized patients, expression of prenylated OAS1 was associated with protection from severe COVID-19, suggesting that this Antiviral defense is a major component of a protective Antiviral response.