1. Center for Infectious Diseases, Heidelberg University Hospital, Heidelberg, Germany.
2. Institute for Theoretical Physics and BioQuant, Heidelberg University, Heidelberg, Germany.
3. Theoretical Systems Biology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
4. Graduate Program in Areas of Basic and Applied Biology, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
5. Electron Microscopy Core Facility, Heidelberg University, Heidelberg, Germany.