1. The Department of Chemistry and the Oxford Centre for Integrative Systems Biology, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom, Structural Genomics Consortium, University of Oxford, Old Road Campus Roosevelt Drive, Headington, OX3 7DQ, United Kingdom, The Botnar Research Centre, Oxford Biomedical Research Unit, Oxford, OX3 7LD, United Kingdom