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-Structure paper
| タイトル | Discovery of a functionally selective serotonin receptor (5-HTR) agonist for the treatment of pain. |
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| ジャーナル・号・ページ | Sci Adv, Vol. 11, Issue 25, Page eadv9267, Year 2025 |
| 掲載日 | 2025年6月20日 |
著者 | Annika Ullrich / Johannes Schneider / João M Braz / Eduard Neu / Nico Staffen / Markus Stanek / Jana Bláhová / Tamsanqa Hove / Tamara Albert / Anni Allikalt / Stefan Löber / Karnika Bhardwaj / Sian Rodriguez-Rosado / Elissa Fink / Tim Rasmussen / Harald Hübner / Asuka Inoue / Brian K Shoichet / Allan I Basbaum / Bettina Böttcher / Dorothee Weikert / Peter Gmeiner / ![]() |
| PubMed 要旨 | The heterotrimeric G protein-coupled serotonin receptor 5-HT receptor (5-HTR) mediates antinociception and may serve as a valuable target for the treatment of pain. Starting from a chemical library, ...The heterotrimeric G protein-coupled serotonin receptor 5-HT receptor (5-HTR) mediates antinociception and may serve as a valuable target for the treatment of pain. Starting from a chemical library, we evolved ST171, a bitopic 5-HTR agonist that revealed highly potent and functionally selective G signaling without G activation and marginal β-arrestin recruitment. ST171 is effective in acute and chronic pain models. Cryo-electron microscopy structures of ST171 bound to 5-HTR in complex with the G protein compared to the canonical agonist befiradol bound to complexes of 5-HTR with G or G revealed that the ligands occupy different exo-sites. The individual binding poses are associated with ligand-specific receptor conformations that were further studied by molecular dynamics simulations, allowing us to better understand ligand bias, a phenomenon that may be crucial to the discovery of more effective and safe G protein-coupled receptor drugs. |
リンク | Sci Adv / PubMed:40531992 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 2.4 - 3.2 Å |
| 構造データ | EMDB-17712, PDB-8pjk: EMDB-17747, PDB-8pkm: EMDB-51434, PDB-9gl2: |
| 化合物 | ![]() ChemComp-CLR: ![]()
ChemComp-ZL9: ![]() ChemComp-T7M: ![]() ChemComp-HOH: ![]()
ChemComp-ZKV: |
| 由来 |
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キーワード | MEMBRANE PROTEIN / Complex / Serotonin / Befiradol |
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