1. Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
2. Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
3. Frankfurt Institute for Advanced Studies, Ruth-Moufang-Strasse 1, 60 438 Frankfurt am Main, Germany
4. Molecular Microbiology and Structural Biochemistry (MMSB, UMR 5086), CNRS, University of Lyon, 69367 Lyon, France