1. School of Biochemistry, University of Bristol, Bristol BS8 1TD, U.K.
2. School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K.
3. BioPharmaceuticals R&D, AstraZeneca, Cambridge CB4 0WG, U.K.
4. Flow Cytometry Facility, School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, U.K.
5. Oncology R&D, AstraZeneca, Cambridge CB21 6GH, U.K.
6. BrisEngBio, School of Chemistry, University of Bristol, Bristol BS8 1TS, U.K.