1. Imperial College London, White City Campus, Molecular Sciences Research Hub, 80 Wood Lane, London W12 0BZ, U.K.
2. Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117543
3. Institute of Pharmaceutical Science, King’s College London, London SE1 9NH, U.K.
4. Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543