GLP-1 Receptor

GLP-1 receptor (GLP-1R) is a class B Gs-coupled GPCR activated by the incretin hormone glucagon-like peptide-1. Expressed on pancreatic beta cells, it potentiates glucose-dependent insulin secretion, suppresses glucagon release, slows gastric emptying and promotes satiety through central actions. Because these effects preserve euglycemia, GLP-1R agonists such as exenatide, liraglutide and semaglutide are cornerstones of type 2 diabetes therapy and have produced major weight loss in obesity indications. The receptor is also present in heart, kidney and neurons, and GLP-1R signaling is being investigated for neuroprotection and cardiovascular benefit. Recombinant GLP-1R is used for agonist screening and binding studies.