Affiliation: | 1. Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA, Fax: (+1)?858‐784‐7835;2. Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA;3. Department of Infectology, Scripps Research Institute—Florida, 5353 Parkside Drive RF‐2, Jupiter, FL 33458, USA;4. The Scripps‐Oxford Laboratory, Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1?3QU, UK |