1. Department of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark.
2. Sainsbury Laboratory, University of Cambridge, Cambridge CB2 1LR, UK.
3. Department of Chemistry, University of Copenhagen, 1871 Frederiksberg, Denmark.
4. Université Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France.
5. Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand.