Institute of Integrative Biology, ETH Zurich, Universitätstr, Zurich, Switzerland.|Institute of Microbiology, ETH Zurich, Zurich, Switzerland.|Center for Modeling and Simulation in the Biosciences, Bio-Quant Center, Heidelberg University, Heidelberg, Germany.|Institute of Microbiology, ETH Zurich, Zurich, Switzerland.|Institute of Integrative Biology, ETH Zurich, Universitätstr, Zurich, Switzerland.