1. Unit for Structural Biology; Laboratory for Protein Biochemistry and Biomolecular Engineering (L-ProBE); Ghent University; K. L. Ledeganckstraat 35 B-9000 Ghent Belgium
2. Dental Research Institute; University of Toronto; Toronto Canada
3. INRA; UMR1319 MICALIS; Jouy-en-Josas France
4. AgroParisTech; UMR MICALIS; Jouy-en-Josas France