1. Division of Cell and Molecular Biology, Imperial College London, Exhibition Road, London SW7 2AZ, UK
2. Division of Structural Biology, The Institute of Cancer Research (ICR), London SW7 3RP, UK
3. Faculty of Biology and Biotechnology, HSE University, 117997 Moscow, Russia
4. Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia
5. Medway School of Pharmacy, University of Kent, Chatham ME4 4TB, UK