1. Department of Structural BiologyWeizmann Institute of Science 234 Herzl Street Rehovot 76100 Israel
2. Department of ChemistryUniversità Degli Studi di Milano 20122 Milano Italy
3. Department of Chemical Research SupportWeizmann Institute of Science Rehovot 76100 Israel
4. MISTRAL Beamline−Experiments DivisionALBA Synchrotron Light Source Cerdanyola del Valles 08290 Barcelona Spain
5. Department of Chemical & Biological PhysicsWeizmann Institute of Science Rehovot 76100 Israel
6. Department of Materials and InterfacesWeizmann Institute of Science Rehovot 76100 Israel