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-Structure paper
タイトル | A method for structure determination of GPCRs in various states. |
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ジャーナル・号・ページ | Nat Chem Biol, Vol. 20, Issue 1, Page 74-82, Year 2024 |
掲載日 | 2023年8月14日 |
著者 | Qiong Guo / Binbin He / Yixuan Zhong / Haizhan Jiao / Yinhang Ren / Qinggong Wang / Qiangqiang Ge / Yongxiang Gao / Xiangyu Liu / Yang Du / Hongli Hu / Yuyong Tao / |
PubMed 要旨 | G-protein-coupled receptors (GPCRs) are a class of integral membrane proteins that detect environmental cues and trigger cellular responses. Deciphering the functional states of GPCRs induced by ...G-protein-coupled receptors (GPCRs) are a class of integral membrane proteins that detect environmental cues and trigger cellular responses. Deciphering the functional states of GPCRs induced by various ligands has been one of the primary goals in the field. Here we developed an effective universal method for GPCR cryo-electron microscopy structure determination without the need to prepare GPCR-signaling protein complexes. Using this method, we successfully solved the structures of the β-adrenergic receptor (βAR) bound to antagonistic and agonistic ligands and the adhesion GPCR ADGRL3 in the apo state. For βAR, an intermediate state stabilized by the partial agonist was captured. For ADGRL3, the structure revealed that inactive ADGRL3 adopts a compact fold and that large unusual conformational changes on both the extracellular and intracellular sides are required for activation of adhesion GPCRs. We anticipate that this method will open a new avenue for understanding GPCR structure‒function relationships and drug development. |
リンク | Nat Chem Biol / PubMed:37580554 |
手法 | EM (単粒子) / X線回折 |
解像度 | 2.8 - 3.4 Å |
構造データ | EMDB-36342, PDB-8jj8: EMDB-36360, PDB-8jjl: EMDB-36361, PDB-8jjo: EMDB-36426, PDB-8jmt: PDB-8j7e: |
化合物 | ChemComp-HOH: ChemComp-H98: ChemComp-DZQ: ChemComp-JTZ: |
由来 |
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キーワード | IMMUNE SYSTEM / Complex / MEMBRANE PROTEIN / chimera / GPCR / ADGRL3 / Apo form |