1. Department
of Biomedicine, University of Basel, Mattenstrasse 28, 4058 Basel, Switzerland
2. MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 0QH, U.K.
3. PIQUR Therapeutics AG, Hochbergerstrasse
60C, 4057 Basel, Switzerland
4. Department
of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland