1. Department of Chemical Biology and Drug Discovery Utrecht Institute for Pharmaceutical Sciences Bijvoet Center for Biomolecular Research Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
2. Molecular Recognition and Host-Pathogen Interactions CIC bioGUNE, Basque Research and Technology Alliance, BRTA Bizkaia Technology Park, Building 800 48162 Derio Bizkaia Spain
3. Ikerbasque, Basque Foundation for Science 48013 Bilbao Bizkaia Spain
4. Complex Carbohydrate Research Center University of Georgia 315 Riverbend Road Athens GA 30602 USA
5. Department of Chemistry University of Georgia Athens GA 30602 USA