1. Institute of Materials, École Polytechnique Fédérale de Lausanne, Station 12, 1015 Lausanne, Switzerland
2. Protein Production and Structure Core Facility, School of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
3. Interfaculty Bioengineering Institute, École Polytechnique Fédérale de Lausanne, Station 12, 1015 Lausanne, Switzerland