1. Institute for Molecular Bioscience (IMB) and IMB Centre for Inflammation and Disease Research, University of Queensland, St Lucia Brisbane 4072, Queensland, Australia.
2. Department of Biochemistry, University of Lausanne, CH-1066 Epalinges, Switzerland.
3. Max Planck Institute for Infection Biology, Department of Cellular Microbiology, Charitéplatz 1, Berlin.