1. Centre for Synthesis and Chemical Biology University College Dublin Belfield Dublin 4 Ireland
2. School of Natural Sciences Bangor University Bangor Gwynedd LL57 2UW UK
3. Lennard-Jones Laboratories Centre for Glycoscience Research Keele University Staffordshire ST5 5BG UK
4. Department of Medical Biochemistry and Biophysics Umeå University 90187 Umeå Sweden