1. Institute of Molecular Biology and Biophysics; ETH Zürich; 8093 Zurich Switzerland
2. Institute of Molecular Pharmacy; University of Basel; Klingelbergstr. 50 4056 Basel Switzerland
3. Department of Chemistry; University of British Columbia; V6T 1Z1 Vancouver, British Columbia Canada
4. Laboratoire des Biomolécules; Département de Chimie, École normale supérieure; PSL Research University; Sorbonne Universités, UPMC Univ. Paris 06, CNRS; 24 rue Lhomond 75005 Paris France
5. UMR 7213 CNRS; Laboratoire de Biophotonique et Pharmacologie; Faculté de Pharmacie; 74 route du Rhin, CS 60024 67401 Illkirch France
6. Institute of Molecular Biology; University of Salzburg; Billrothstr. 11 5020 Salzburg Austria