1. Université
Grenoble Alpes, Institut de Biologie Structurale (IBS), Grenoble F-38027, France
2. CNRS, IBS, UMR
5075, 71 av. des Martyrs, Grenoble F-38027, France
3. CEA, DSV, IBS, Grenoble F-38027, France
4. Department
of Biological Sciences, University of Warwick, Coventry CV4 7AL, United Kingdom
5. Department
of Chemical Biology and Organic Chemistry, Institute of Biomembranes,
Bijvoet Center for Biomolecular Research, Utrecht University, Utrecht 3584 CH, The Netherlands