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-Structure paper
タイトル | Unsaturated bond recognition leads to biased signal in a fatty acid receptor. |
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ジャーナル・号・ページ | Science, Vol. 380, Issue 6640, Page eadd6220, Year 2023 |
掲載日 | 2023年4月7日 |
著者 | Chunyou Mao / Peng Xiao / Xiao-Na Tao / Jiao Qin / Qing-Tao He / Chao Zhang / Sheng-Chao Guo / Ya-Qin Du / Li-Nan Chen / Dan-Dan Shen / Zhi-Shuai Yang / Han-Qiong Zhang / Shen-Ming Huang / Yong-Hao He / Jie Cheng / Ya-Ni Zhong / Pan Shang / Jun Chen / Dao-Lai Zhang / Qian-Lang Wang / Mei-Xia Liu / Guo-Yu Li / Yongyuan Guo / H Eric Xu / Chuanxin Wang / Cheng Zhang / Shiqing Feng / Xiao Yu / Yan Zhang / Jin-Peng Sun / |
PubMed 要旨 | Individual free fatty acids (FAs) play important roles in metabolic homeostasis, many through engagement with more than 40G protein-coupled receptors. Searching for receptors to sense beneficial ...Individual free fatty acids (FAs) play important roles in metabolic homeostasis, many through engagement with more than 40G protein-coupled receptors. Searching for receptors to sense beneficial omega-3 FAs of fish oil enabled the identification of GPR120, which is involved in a spectrum of metabolic diseases. Here, we report six cryo-electron microscopy structures of GPR120 in complex with FA hormones or TUG891 and G or G trimers. Aromatic residues inside the GPR120 ligand pocket were responsible for recognizing different double-bond positions of these FAs and connect ligand recognition to distinct effector coupling. We also investigated synthetic ligand selectivity and the structural basis of missense single-nucleotide polymorphisms. We reveal how GPR120 differentiates rigid double bonds and flexible single bonds. The knowledge gleaned here may facilitate rational drug design targeting to GPR120. |
リンク | Science / PubMed:36862765 |
手法 | EM (単粒子) |
解像度 | 2.52 - 3.1 Å |
構造データ | EMDB-29736, PDB-8g59: EMDB-35356, PDB-8id3: EMDB-35357, PDB-8id4: EMDB-35358, PDB-8id6: EMDB-35359, PDB-8id8: EMDB-35360, PDB-8id9: EMDB-35522: Cryo-EM structure of the TUG891 bound GPR120-Giq complex(mask on receptor) EMDB-35523: Cryo-EM structure of the TUG891 bound GPR120-Giq complex(mask on Giq-scFV16 complex) EMDB-35524: Cryo-EM structure of the eicosapentaenoic acid bound GPR120-Gi1 complex(mask on receptor) EMDB-35525: Cryo-EM structure of the eicosapentaenoic acid bound GPR120-Gi1 complex(mask on Gil-scFV16 complex) EMDB-35529: Cryo-EM structure of the TUG891 bound GPR120-Giq complex (consensus map) EMDB-35533: Cryo-EM structure of the eicosapentaenoic acid bound GPR120-Gi complex(consensus map) |
化合物 | ChemComp-YN9: ChemComp-7NR: ChemComp-EIC: ChemComp-HOH: ChemComp-OLA: ChemComp-EPA: |
由来 |
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キーワード | MEMBRANE PROTEIN / GPCR / GPR120 / complex / fatty acid hormones |