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Open data
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Basic information
Entry | Database: PDB / ID: 8g59 | ||||||
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Title | Cryo-EM structure of the TUG891 bound GPR120-Giq complex | ||||||
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Function / homology | ![]() negative regulation of somatostatin secretion / ghrelin secretion / Free fatty acid receptors / positive regulation of glucagon secretion / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Mao, C. / Xiao, P. / Tao, X. / Qin, J. / He, Q. / Zhang, C. / Yu, X. / Zhang, Y. / Sun, J. | ||||||
Funding support | 1items
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![]() | ![]() Title: Unsaturated bond recognition leads to biased signal in a fatty acid receptor. Authors: 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 / ...Authors: 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 / ![]() Abstract: 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. | ||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 205.3 KB | Display | ![]() |
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PDB format | ![]() | 160 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 29736MC ![]() 8id3C ![]() 8id4C ![]() 8id6C ![]() 8id8C ![]() 8id9C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules BYA
#1: Protein | Mass: 37285.734 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
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#2: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
#4: Protein | Mass: 40555.199 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
-Antibody / Protein / Non-polymers , 3 types, 3 molecules SR![](data/chem/img/YN9.gif)
![](data/chem/img/YN9.gif)
#3: Antibody | Mass: 30363.043 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
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#5: Protein | Mass: 40533.211 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() |
#6: Chemical | ChemComp-YN9 / |
-Details
Has ligand of interest | Y |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
Component | Name: Cryo-EM structure of the TUG891 bound GPR120-Giq complex Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() |
Vitrification![]() | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() |
Image recording | Electron dose: 52 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.19.2_4158: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction![]() | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction![]() | Resolution: 2.64 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 303739 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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