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Open data
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Basic information
| Entry | Database: PDB / ID: 7xz6 | ||||||
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| Title | GPR119-Gs-APD668 complex | ||||||
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Keywords | MEMBRANE PROTEIN / GPCR / Glucose-dependent insulinotropic receptor / GPR119 / LysoPC / Lysophosphatidylcholine / APD668 / G-protein / Gs / signaling complex / cryo-EM structure / structure-function relationships | ||||||
| Function / homology | Function and homology informationSynthesis, secretion, and inactivation of Glucose-dependent Insulinotropic Polypeptide (GIP) / phosphatidylcholine binding / regulation of metabolic process / insulin secretion / electron transport chain / G protein-coupled receptor activity / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta ...Synthesis, secretion, and inactivation of Glucose-dependent Insulinotropic Polypeptide (GIP) / phosphatidylcholine binding / regulation of metabolic process / insulin secretion / electron transport chain / G protein-coupled receptor activity / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / 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 / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / 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 / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / periplasmic space / electron transfer activity / Extra-nuclear estrogen signaling / cell population proliferation / receptor complex / G protein-coupled receptor signaling pathway / iron ion binding / lysosomal membrane / GTPase activity / heme binding / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
| Biological species | Homo sapiens (human)![]() ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å | ||||||
Authors | Xu, P. / Huang, S. / Jiang, Y. / Xu, H.E. | ||||||
| Funding support | China, 1items
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Citation | Journal: Nat Struct Mol Biol / Year: 2022Title: Structural identification of lysophosphatidylcholines as activating ligands for orphan receptor GPR119. Authors: Peiyu Xu / Sijie Huang / Shimeng Guo / Ying Yun / Xi Cheng / Xinheng He / Pengjun Cai / Yuan Lan / Hu Zhou / Hualiang Jiang / Yi Jiang / Xin Xie / H Eric Xu / ![]() Abstract: Lysophosphatidylcholine (LPC) is an essential mediator in human lipid metabolism and is associated with a variety of diseases, but the exact identity of LPC receptors remains controversial. Through ...Lysophosphatidylcholine (LPC) is an essential mediator in human lipid metabolism and is associated with a variety of diseases, but the exact identity of LPC receptors remains controversial. Through extensive biochemical and structural analyses, we have identified the orphan receptor GPR119 as the receptor for LPC. The structure of the GPR119-G-protein complex without any added ligands reveals a density map that fits well with LPC, which is further confirmed by mass spectrometry and functional studies. As LPCs are abundant on the cell membrane, their preoccupancy in the receptor may lead to 'constitutive activity' of GPR119. The structure of GPR119 bound to APD668, a clinical drug candidate for type 2 diabetes, reveals an exceedingly similar binding mode to LPC. Together, these data highlight structural evidence for LPC function in regulating glucose-dependent insulin secretion through direct binding and activation of GPR119, and provide structural templates for drug design targeting GPR119. | ||||||
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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 | 7xz6.cif.gz | 360.9 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7xz6.ent.gz | 289 KB | Display | PDB format |
| PDBx/mmJSON format | 7xz6.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7xz6_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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| Full document | 7xz6_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 7xz6_validation.xml.gz | 37.8 KB | Display | |
| Data in CIF | 7xz6_validation.cif.gz | 55.8 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xz/7xz6 ftp://data.pdbj.org/pub/pdb/validation_reports/xz/7xz6 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 33526MC ![]() 7xz5C 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 ABG
| #1: Protein | Mass: 45699.434 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Trichoplusia ni (cabbage looper) |
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| #2: 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 |
| #3: 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 |
-Antibody / Protein , 2 types, 2 molecules NR
| #4: Antibody | Mass: 15271.938 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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| #5: Protein | Mass: 53785.129 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Homo sapiens (human)Gene: cybC, GPR119 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P0ABE7, UniProt: Q8TDV5 |
-Non-polymers , 2 types, 2 molecules 


| #6: Chemical | ChemComp-I7J / |
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| #7: Water | ChemComp-HOH / |
-Details
| Has ligand of interest | Y |
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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
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| Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE-PROPANE |
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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: 2200 nm / Nominal defocus min: 1200 nm |
| Image recording | Electron dose: 70 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 515782 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)


China, 1items
Citation



PDBj


























Trichoplusia ni (cabbage looper)
FIELD EMISSION GUN