1. Structural Genomics Consortium, University of Oxford, Oxford OX3 7DQ, UK.
2. Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.
3. OXION Initiative in Ion Channels and Disease, University of Oxford, Oxford OX1 3PN, UK.
4. Department of Biochemistry, University of Oxford, Oxford OX1 3QU, UK.
5. Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7FZ, UK.
6. Pfizer Neusentis, Granta Park, Cambridge CB21 6GS, UK.