1. Institute of Organic Chemistry, Julius-Maximilians-Universität Würzburg, 97074 Würzburg, Germany
2. Institute of Virology and Immunobiology, Julius-Maximilians-Universität Würzburg, 97078 Würzburg, Germany
3. Department of Biotechnology and Biophysics, Julius-Maximilians-Universität Würzburg, 97074 Würzburg, Germany