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Yorodumi- PDB-9iyb: Cryo-EM Structure of the Prostaglandin D2 Receptor 2-PGD2 Coupled... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9iyb | ||||||||||||||||||||||||||||||||||||
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| Title | Cryo-EM Structure of the Prostaglandin D2 Receptor 2-PGD2 Coupled to G Protein | ||||||||||||||||||||||||||||||||||||
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Keywords | MEMBRANE PROTEIN / GPCR / DP2 / PGD2 | ||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationprostaglandin J receptor activity / prostaglandin D receptor activity / prostaglandin F receptor activity / negative regulation of male germ cell proliferation / Prostanoid ligand receptors / cellular response to prostaglandin D stimulus / positive regulation of G protein-coupled receptor signaling pathway / neuropeptide binding / neuropeptide signaling pathway / adenylate cyclase inhibitor activity ...prostaglandin J receptor activity / prostaglandin D receptor activity / prostaglandin F receptor activity / negative regulation of male germ cell proliferation / Prostanoid ligand receptors / cellular response to prostaglandin D stimulus / positive regulation of G protein-coupled receptor signaling pathway / neuropeptide binding / neuropeptide signaling pathway / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / Regulation of insulin secretion / calcium-mediated signaling / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / chemotaxis / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / G protein activity / GTPase binding / Ca2+ pathway / fibroblast proliferation / midbody / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cell cortex / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / neuron projection / immune response / ciliary basal body / G protein-coupled receptor signaling pathway / lysosomal membrane / cell division / GTPase activity / synapse / centrosome / GTP binding / protein-containing complex binding / nucleolus / magnesium ion binding Similarity search - Function | ||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human)![]() | ||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.82 Å | ||||||||||||||||||||||||||||||||||||
Authors | Xu, J. / Xu, Y. / Wu, C. / Xu, H.E. | ||||||||||||||||||||||||||||||||||||
| Funding support | China, 1items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2024Title: Molecular basis of lipid and ligand regulation of prostaglandin receptor DP2. Authors: Jiuyin Xu / Youwei Xu / Li Hou / Xinheng He / Yang Li / Jing Zhao / Xue Meng / James Jiqi Wang / Yanli Wu / Heng Zhang / Yunhai Li / Wen Hu / Qingning Yuan / Kai Wu / Xi Cheng / Yi Jiang / ...Authors: Jiuyin Xu / Youwei Xu / Li Hou / Xinheng He / Yang Li / Jing Zhao / Xue Meng / James Jiqi Wang / Yanli Wu / Heng Zhang / Yunhai Li / Wen Hu / Qingning Yuan / Kai Wu / Xi Cheng / Yi Jiang / Yu Xia / H Eric Xu / Canrong Wu / ![]() Abstract: Prostaglandin D2 receptor 2 (DP2) is an important anti-inflammatory and antiallergic drug target. While inactive DP2 structures are known, its activation mechanisms and biased signaling remain ...Prostaglandin D2 receptor 2 (DP2) is an important anti-inflammatory and antiallergic drug target. While inactive DP2 structures are known, its activation mechanisms and biased signaling remain unclear. Here, we report cryo-EM structures of an apo DP2-Gi complex, a DP2-Gi complex bound to the endogenous ligand Prostaglandin D (PGD), and a DP2-Gi complex bound to indomethacin, an arrestin-biased ligand, at resolutions of 2.5 Å, 2.8Å, and 2.3 Å, respectively. These structures reveal a distinct binding pose of PGD and indomethacin and provide key insights into receptor activation and transducer coupling. Combining the structural data with functional studies, we uncover the molecular basis for biased signaling of indomethacin toward β-arrestin over G proteins. Notably, a phospholipid binding site was identified at the DP2-G protein interface that modulates DP2-G protein interactions. Together, our functional and structural findings provide insights into DP2 activation, biased signaling, drug interactions, and lipid regulation, enabling rational design of safer antiallergy therapeutics targeting this key immune receptor. | ||||||||||||||||||||||||||||||||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9iyb.cif.gz | 224.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9iyb.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9iyb.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9iyb_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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| Full document | 9iyb_full_validation.pdf.gz | 1.5 MB | Display | |
| Data in XML | 9iyb_validation.xml.gz | 42.5 KB | Display | |
| Data in CIF | 9iyb_validation.cif.gz | 62.1 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/iy/9iyb ftp://data.pdbj.org/pub/pdb/validation_reports/iy/9iyb | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 60994MC ![]() 8xxuC ![]() 8xxvC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules BCD
| #2: Protein | Mass: 40414.047 Da / Num. of mol.: 1 / Mutation: S47N,G203A,E245A,A326S Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P63096 |
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| #3: Protein | Mass: 37915.496 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P62873 |
| #4: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P59768 |
-Protein / Antibody , 2 types, 2 molecules AE
| #1: Protein | Mass: 43319.676 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PTGDR2, CRTH2, DL1R, GPR44 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: Q9Y5Y4 |
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| #5: Antibody | Mass: 26408.492 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Trichoplusia ni (cabbage looper) |
-Non-polymers , 3 types, 3 molecules 


| #6: Chemical | ChemComp-A1D5Q / [( Mass: 837.069 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C43H81O13P |
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| #7: Chemical | ChemComp-PG2 / |
| #8: Water | ChemComp-HOH / |
-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: Prostaglandin D2 Receptor 2-PGD2-G protein complex / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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| Molecular weight | Value: 0.16 MDa / Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Trichoplusia ni (cabbage looper) |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| 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: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 5000 nm / Nominal defocus min: 1200 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| CTF correction | Type: NONE |
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| 3D reconstruction | Resolution: 2.82 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 82449 / Symmetry type: POINT |
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Homo sapiens (human)

China, 1items
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Trichoplusia ni (cabbage looper)
FIELD EMISSION GUN