Projects per year
The glucagon-like peptide-1 receptor (GLP-1R) regulates insulin secretion, carbohydrate metabolism, and appetite and is an important target for treatment of type 2 diabetes and obesity. Multiple GLP-1R agonists have entered into clinical trials, with some, such as semaglutide, progressing to approval. Others, including taspoglutide, failed due to the high incidence of side effects or insufficient efficacy. GLP-1R agonists have a broad spectrum of signaling profiles, but molecular understanding is limited by a lack of structural information on how different agonists engage with the GLP-1R. Here, we report cryoelectron microscopy (cryo-EM) structures and cryo-EM 3D variability analysis of semaglutide- and taspoglutide-bound GLP-1R-Gs protein complexes. These reveal similar peptide interactions to GLP-1 but different motions within the receptor and bound peptides, providing insights into the molecular determinants of GLP-1R peptide engagement.
- cryoelectron microscopy
- glucagon-like peptide-1 receptor
- GPCR dynamics
ARC Industrial Transformation Training Centre for Cryo-Electron Microscopy of Membrane Proteins for Drug Discovery
Sexton, P., Rouiller, I., Wootten, D., van Oijen, A., Parker, M. W., Lucet, I., Griffin, M. D. W., Adams, D. J., Czabotar, P. E., Flocco, M., Han, S., Shepherd, R., Ciferri, C., Williams, P. A., Brown, D., Schreuder, H., Reedtz-Runge, S., Drinkwater, C., Howard, B. L., Betigeri, G. & Pryor, E.
23/03/21 → 22/03/26
Wootten, D. & Wu, B.
1/01/20 → 31/12/24
1/01/19 → 31/12/23