1. Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
2. Institute for Biological Interfaces 1 (IBG 1), Karlsruhe Institute of Technology (KIT), Group for
Molecular Evolution, 76131 Karlsruhe, Germany
3. Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark