1. VIB-KU Leuven Center for Microbiology; Flanders Belgium
2. Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology; KU Leuven; Leuven-Heverlee Belgium
3. Chemistry-Biochemistry Department, Molecular and Structural Biology Section; KU Leuven; Leuven-Heverlee Belgium
4. Department of Biotechnology and Biosciences; University of Milano-Bicocca; Milan Italy