1. Institute for Research in Biomedicine (IRB Barcelona) Barcelona Spain
2. Department of Medicine and Animal Surgery Autonomous University of BarcelonaBarcelona Spain
3. Center for Investigation in the Diabetes and Associated Metabolic Diseases Network (CIBERDEM) Barcelona Spain
4. Electron Cryo‐Microscopy Unit Scientific and Technological Centres University of Barcelona Barcelona Spain
5. Institució Catalana de Recerca i Estudis Avançats (ICREA) Barcelona Spain
6. Department of Biochemistry and Molecular Biology University of Barcelona Barcelona Spain