1. Centre for Glycosciences, Keele University, Keele, Staffordshire, ST5 5BG, UK
2. Lennard-Jones Laboratory, School of Chemical and Physical Sciences, Keele University, Keele, Staffordshire, ST5 5BG, UK
3. Riboscience LLC, 428 Oakmead Pkwy, Sunnyvale, CA 94085, USA