1. School of Natural Sciences and Ryan Institute, National University of Ireland, Galway, University Road, Galway, Ireland
2. School of Mathematics, Statistics and Applied Mathematics, National University of Ireland, Galway, University Road, Galway, Ireland
3. Glycoscience Group, National Centre for Biomedical Engineering Science, National University of Ireland, Galway, University Road, Galway, Ireland
4. Biozentrum Köln, University of Cologne, Zülpicher Str. 47b, 50674 Köln, Germany