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-Structure paper
| タイトル | A GPCR-G protein-β-arrestin megacomplex enabled by a versatile allosteric modulator. |
|---|---|
| ジャーナル・号・ページ | Cell, Vol. 189, Issue 5, Page 1434-1450.e22, Year 2026 |
| 掲載日 | 2026年3月5日 |
著者 | Guodong He / Qinxin Sun / Xinyu Xu / Fang Kong / Shuhao Zhang / Kexin Ye / Xiaoou Sun / Bin Lin / Xin Chen / Chuangye Yan / Xiangyu Liu / ![]() |
| PubMed 要旨 | Approximately one-third of clinical drugs mediate their therapeutic effects through G protein-coupled receptors (GPCRs), highlighting their immense therapeutic relevance. Novel approaches to modulate ...Approximately one-third of clinical drugs mediate their therapeutic effects through G protein-coupled receptors (GPCRs), highlighting their immense therapeutic relevance. Novel approaches to modulate GPCR activity have the potential to yield unique pharmacological profiles. Conventionally, the G protein and β-arrestin signaling pathways downstream of GPCRs have been viewed as mutually exclusive. Using the in-house developed survival pressure selection (SPS) method, a high-throughput platform for GPCR agonist discovery, we identified an allosteric ligand that stabilizes a GPCR-G protein-β-arrestin megacomplex, thereby mediating sustained receptor signaling following internalization. Remarkably, this compound, atazanavir, exhibits pan-receptor activation across multiple family A GPCRs, including GPR119, βAR, and βAR, demonstrating the broad applicability of this regulatory mechanism. This discovery uncovers a distinct mechanism of GPCR regulation, opening alternative avenues for the development of therapeutics targeting GPCRs. |
リンク | Cell / PubMed:41605208 |
| 手法 | EM (単粒子) |
| 解像度 | 3.22 - 3.33 Å |
| 構造データ | EMDB-62880, PDB-9l80: EMDB-62884, PDB-9l84: EMDB-62885, PDB-9l8l: |
| 化合物 | ![]() ChemComp-DR7: ![]() ChemComp-ALE: ![]() ChemComp-P0G: |
| 由来 |
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キーワード | MEMBRANE PROTEIN / GPCR |
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