{
  "id": 12485864,
  "title": "Danuglipron and orforglipron engage GLP-1R through materially different interfaces: an unbiased molecular dynamics study",
  "url": "https://urgent.news/2026/10/06/danuglipron-and-orforglipron-engage-glp-1r-through-materially",
  "topic": "science",
  "section": "Science",
  "published": "2026-10-06T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.09.30.754652v1?rss=1"
  },
  "original_language": "en",
  "account": "Danuglipron and orforglipron, two oral non-peptide agonists reaching late-stage trials for GLP-1R as a metabolic disease target, have distinct interfaces with the receptor according to a molecular dynamics study. Unbiased all-atom simulations of GLP-1R bound to GLP-1, danuglipron (PF-06882961), and orforglipron (LY3502970) were conducted in a POPC bilayer without the G protein. While CHU-128, a close analogue of orforglipron, had been simulated previously, this is the first simulation of orforglipron. The study found that orforglipron utilizes ring systems mainly in one receptor domain, with 99.7% of its contacts in the extracellular domain, whereas danuglipron engages receptors in both domains. Danuglipron had lower contact occupancy compared to orforglipron, with only 33% of its contacts exceeding 90% occupancy at 100 ns, making it the outlier on certain measures. The distinct structural occupations of these two drugs in the GLP-1R receptor indicate different ways of interacting with the target.",
  "summary": "GLP-1R is among the most heavily pursued targets in metabolic disease, but its natural agonist is a 30-residue peptide that must be injected. Two oral non-peptide agonists have reached late-stage trials. Cryo-EM studies have already shown that danuglipron and CHU-128, a close analogue of orforglipron, occupy the receptor differently, but not how either interface behaves over time. We ran 500 ns…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}