1. Division of Gene
Technology, School of Biotechnology, Science for Life Laboratory, Royal Institute of Technology (KTH), SE-171 65 Solna, Sweden
2. Division
of Glycoscience,
School of Biotechnology, Royal Institute of Technology (KTH), AlbaNova University Centre, SE-106 91 Stockholm, Sweden
3. Michael
Smith Laboratories and Department of Chemistry, University of British Columbia, 2185 East Mall, Vancouver V167T 1Z4, Canada
4. Department
of Cell and Molecular Biology, Karolinska Institutet, SE-171 77 Solna, Sweden