1. Biomolecular Research, Paul Scherrer Institut, Villigen PSI, Switzerland.
2. Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology (ETH) Zürich, Zürich, Switzerland.
3. Centre for Biodiscovery, Victoria University of Wellington, Wellington, New Zealand.
4. Chemical and Physical Biology, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas CIB-CSIC, Madrid, Spain.