+検索条件
-Structure paper
| タイトル | Structural determinants of G protein subtype selectivity at the serotonin receptor 5-HT1A. |
|---|---|
| ジャーナル・号・ページ | Sci Adv, Vol. 11, Issue 31, Page eadu9851, Year 2025 |
| 掲載日 | 2025年8月1日 |
著者 | Audrey L Warren / Gregory Zilberg / Anwar Abbassi / Alejandro Abraham / Shifan Yang / Daniel Wacker / ![]() |
| PubMed 要旨 | Activation of the serotonin receptor 5-HT1A has been shown to regulate mood and cognition, making 5-HT1A an important target in the treatment of anxiety, depression, and psychosis. Although the ...Activation of the serotonin receptor 5-HT1A has been shown to regulate mood and cognition, making 5-HT1A an important target in the treatment of anxiety, depression, and psychosis. Although the receptor signals through inhibitory G proteins, more work is necessary to understand differences in transducer coupling and its relation to functional activity. To develop a molecular understanding of the differences underlying transducer coupling and activation, we performed structure-activity relationship studies of 5-HT1A with distinct G proteins. Through a combination of in vitro assays, we identified a potent partial agonist that selectively engages a G protein subtype. We further investigated the differences in G protein engagement at 5-HT1A with cryo-electron microscopy, determining structures of 5-HT1A bound to distinct ligands and G protein subtypes. Combined with subsequent structure-guided mutagenesis and signaling assays, our studies uncover both orthosteric and allosteric determinants of agonist-specific stimulation of distinct transducers. |
リンク | Sci Adv / PubMed:40749070 |
| 手法 | EM (単粒子) |
| 解像度 | 2.74 - 3.03 Å |
| 構造データ | EMDB-47300, PDB-9dyd: EMDB-47301, PDB-9dye: EMDB-47302, PDB-9dyf: EMDB-48164, PDB-9md1: |
| 化合物 | ![]() PDB-1bir: ![]() ChemComp-CLR: ![]() ChemComp-J40: ![]()
ChemComp-YLX: |
| 由来 |
|
キーワード | SIGNALING PROTEIN / GPCR Signaling Complex / Serotonin Receptor |
ムービー
コントローラー
構造ビューア
万見文献について



著者
リンク











homo sapiens (ヒト)
キーワード