1. LMU Munich, Department of Chemistry and Centre for Integrated Protein Science (CIPSM), Butenandtstrasse 5–13, 81377 Munich (Germany)
2. Imperial College London, Section of Cell Biology and Functional Genomics, Division of Diabetes, Endocrinology and Metabolism, Department of Medicine, Hammersmith Hospital, Du Cane Road, London W12 0NN (UK)
3. Imperial College London, Section of Investigative Medicine, Division of Diabetes, Endocrinology and Metabolism, Hammersmith Hospital, Du Cane Road, London W12 0NN (UK)