1. The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh , Easter Bush, Midlothian, United Kingdom
2. Infection Medicine, University of Edinburgh , Little France Crescent, United Kingdom
3. Institute of Virology and Immunology (IVI) , Bern, Switzerland
4. Department of Infectious Diseases and Pathobiology, Vetsuisse Faculty, University of Bern , Bern, Switzerland
5. Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee , Dundee, United Kingdom