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Open data
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Basic information
| Entry | Database: PDB / ID: 8jjp | |||||||||||||||||||||||||||||||||
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| Title | G protein-coupled receptor 1 | |||||||||||||||||||||||||||||||||
Components |
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Keywords | MEMBRANE PROTEIN / G protein-coupled receptor 1 / chemerin receptor 2 | |||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationregulation of chemokine activity / adipokinetic hormone binding / adipokinetic hormone receptor activity / platelet dense granule lumen / regulation of lipid catabolic process / antifungal innate immune response / embryonic digestive tract development / response to caloric restriction / antifungal humoral response / positive regulation of chemotaxis ...regulation of chemokine activity / adipokinetic hormone binding / adipokinetic hormone receptor activity / platelet dense granule lumen / regulation of lipid catabolic process / antifungal innate immune response / embryonic digestive tract development / response to caloric restriction / antifungal humoral response / positive regulation of chemotaxis / neuropeptide binding / positive regulation of macrophage chemotaxis / positive regulation of systemic arterial blood pressure / positive regulation of fat cell differentiation / regulation of eating behavior / adenylate cyclase inhibitor activity / retinoid metabolic process / T cell migration / positive regulation of protein localization to cell cortex / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / response to activity / cellular response to forskolin / regulation of mitotic spindle organization / mast cell degranulation / chemokine-mediated signaling pathway / neuropeptide signaling pathway / Regulation of insulin secretion / response to prostaglandin E / positive regulation of cholesterol biosynthetic process / positive regulation of protein phosphorylation / G protein-coupled receptor binding / response to peptide hormone / insulin receptor signaling pathway / chemotaxis / G protein-coupled receptor activity / G-protein beta/gamma-subunit complex binding / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / glucose homeostasis / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / GDP binding / G beta:gamma signalling through BTK / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Platelet degranulation / Glucagon-type ligand receptors / Sensory perception of sweet, bitter, and umami (glutamate) taste / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / regulation of inflammatory response / GPER1 signaling / heterotrimeric G-protein complex / Inactivation, recovery and regulation of the phototransduction cascade / G alpha (12/13) signalling events / G-protein beta-subunit binding / extracellular vesicle / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / adenylate cyclase-activating G protein-coupled receptor signaling pathway / GTPase binding / G protein activity / midbody / extracellular matrix / Ca2+ pathway / cell cortex / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / defense response to Gram-negative bacterium / G alpha (i) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / Ras protein signal transduction / ciliary basal body / cell differentiation / Extra-nuclear estrogen signaling Similarity search - Function | |||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human)![]() | |||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å | |||||||||||||||||||||||||||||||||
Authors | Liu, A. / Liu, Y. / Chen, G. / Ye, F. | |||||||||||||||||||||||||||||||||
| Funding support | 1items
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Citation | Journal: PLoS Biol / Year: 2024Title: Structure of G protein-coupled receptor GPR1 bound to full-length chemerin adipokine reveals a chemokine-like reverse binding mode. Authors: Aijun Liu / Yezhou Liu / Geng Chen / Wenping Lyu / Fang Ye / Junlin Wang / Qiwen Liao / Lizhe Zhu / Yang Du / Richard D Ye / ![]() Abstract: Chemerin is an adipokine with chemotactic activity to a subset of leukocytes. Chemerin binds to 3 G protein-coupled receptors, including chemokine-like receptor 1 (CMKLR1), G protein-coupled receptor ...Chemerin is an adipokine with chemotactic activity to a subset of leukocytes. Chemerin binds to 3 G protein-coupled receptors, including chemokine-like receptor 1 (CMKLR1), G protein-coupled receptor 1 (GPR1), and C-C chemokine receptor-like 2 (CCRL2). Here, we report that GPR1 is capable of Gi signaling when stimulated with full-length chemerin or its C-terminal nonapeptide (C9, YFPGQFAFS). We present high-resolution cryo-EM structures of Gi-coupled GPR1 bound to full-length chemerin and to the C9 peptide, respectively. C9 insertion into the transmembrane (TM) binding pocket is both necessary and sufficient for GPR1 signaling, whereas the full-length chemerin uses its bulky N-terminal core for interaction with a β-strand located at the N-terminus of GPR1. This interaction involves multiple β-strands of full-length chemerin, forming a β-sheet that serves as a "lid" for the TM binding pocket and is energetically expensive to remove as indicated by molecular dynamics simulations with free energy landscape analysis. Combining results from functional assays, our structural model explains why C9 is an activating peptide at GPR1 and how the full-length chemerin uses a "two-site" model for enhanced interaction with GPR1. | |||||||||||||||||||||||||||||||||
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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 | 8jjp.cif.gz | 242.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8jjp.ent.gz | 188.7 KB | Display | PDB format |
| PDBx/mmJSON format | 8jjp.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/jj/8jjp ftp://data.pdbj.org/pub/pdb/validation_reports/jj/8jjp | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 36364MC ![]() 8xgmC 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 CBG
| #2: Protein | Mass: 40415.031 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Cell line (production host): Sf9 / Production host: ![]() |
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| #3: Protein | Mass: 37198.656 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: ![]() |
| #4: Protein | Mass: 6218.162 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: ![]() |
-Protein / Antibody / Protein/peptide / Non-polymers , 4 types, 4 molecules ASL

| #1: Protein | Mass: 34035.531 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: CMKLR2, GPR1 / Cell line (production host): Sf9 / Production host: ![]() |
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| #5: Antibody | Mass: 26337.307 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Trichoplusia ni (cabbage looper) |
| #6: Protein/peptide | Mass: 1063.161 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: Q99969 |
| #7: Chemical | ChemComp-CLR / |
-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: GPR1-C9-Gi-scFv16 / Type: COMPLEX / Entity ID: #1-#6 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: GOLD |
| EM embedding | Material: gold |
| 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1200 nm |
| Image recording | Electron dose: 52 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3D reconstruction | Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 339859 / Symmetry type: POINT |
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Homo sapiens (human)

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FIELD EMISSION GUN