1. School of Computer Science, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
2. Faculty of Life Sciences, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
3. School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.
4. Manchester Interdisciplinary Biocentre, 131 Princess Street, Manchester M1 7DN, U.K.