1. Institute of Biological Interfaces 4, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen 76344, Germany
2. Department of Biology, ETH Zurich, Zürich 8093, Switzerland
3. CRMN UMR-5082, CNRS, ENS Lyon, Universite Claude Bernard Lyon 1, Villeurbanne 69100, France
4. Institute of Physical Chemistry, Karlsruhe Institute of Technology, Karlsruhe 76131, Germany