1. Life Sciences Group, Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38000, France
2. Partnership for Structural Biology (PSB), 71 Avenue des Martyrs, Grenoble 38000, France
3. Université Grenoble Alpes, CNRS, CERMAV, Grenoble 38000, France
4. Faculty of Natural Sciences, Keele University, Staffordshire ST5 5BG, UK
5. Large Scale Structures Group, Institut Laue-Langevin, 71 Avenue des Martyrs, Grenoble 38000, France