+検索条件
-Structure paper
タイトル | Structural insights into the human niacin receptor HCA2-G signalling complex. |
---|---|
ジャーナル・号・ページ | Nat Commun, Vol. 14, Issue 1, Page 1692, Year 2023 |
掲載日 | 2023年3月27日 |
著者 | Yang Yang / Hye Jin Kang / Ruogu Gao / Jingjing Wang / Gye Won Han / Jeffrey F DiBerto / Lijie Wu / Jiahui Tong / Lu Qu / Yiran Wu / Ryan Pileski / Xuemei Li / Xuejun Cai Zhang / Suwen Zhao / Terry Kenakin / Quan Wang / Raymond C Stevens / Wei Peng / Bryan L Roth / Zihe Rao / Zhi-Jie Liu / |
PubMed 要旨 | The hydroxycarboxylic acid receptor 2 (HCA2) agonist niacin has been used as treatment for dyslipidemia for several decades albeit with skin flushing as a common side-effect in treated individuals. ...The hydroxycarboxylic acid receptor 2 (HCA2) agonist niacin has been used as treatment for dyslipidemia for several decades albeit with skin flushing as a common side-effect in treated individuals. Extensive efforts have been made to identify HCA2 targeting lipid lowering agents with fewer adverse effects, despite little being known about the molecular basis of HCA2 mediated signalling. Here, we report the cryo-electron microscopy structure of the HCA2-G signalling complex with the potent agonist MK-6892, along with crystal structures of HCA2 in inactive state. These structures, together with comprehensive pharmacological analysis, reveal the ligand binding mode and activation and signalling mechanisms of HCA2. This study elucidates the structural determinants essential for HCA2 mediated signalling and provides insights into ligand discovery for HCA2 and related receptors. |
リンク | Nat Commun / PubMed:36973264 / PubMed Central |
手法 | EM (単粒子) / X線回折 |
解像度 | 2.7 - 3.1 Å |
構造データ | EMDB-33241, PDB-7xk2: PDB-7zl9: PDB-7zly: |
化合物 | ChemComp-FI7: ChemComp-OLA: ChemComp-OLC: ChemComp-PEG: ChemComp-UNX: ChemComp-HOH: |
由来 |
|
キーワード | MEMBRANE PROTEIN / Niacin receptor / hydroxycarboxylic acid receptor 2 / HCA2 / Gi complex / GPCR / membrane protein structure |