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Open data
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Basic information
| Entry | Database: PDB / ID: 9izh | |||||||||||||||||||||||||||||||||||||||||||||
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| Title | Cryo-EM structure of LPA1-G13 complex with LPA | |||||||||||||||||||||||||||||||||||||||||||||
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Keywords | MEMBRANE PROTEIN / GPCR / SIGNALING PROTEIN | |||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationcellular response to 1-oleoyl-sn-glycerol 3-phosphate / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Prostacyclin signalling through prostacyclin receptor / lysophosphatidic acid receptor activity / G alpha (z) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / positive regulation of smooth muscle cell chemotaxis ...cellular response to 1-oleoyl-sn-glycerol 3-phosphate / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Prostacyclin signalling through prostacyclin receptor / lysophosphatidic acid receptor activity / G alpha (z) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / positive regulation of smooth muscle cell chemotaxis / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / G beta:gamma signalling through BTK / Thromboxane signalling through TP receptor / Thrombin signalling through proteinase activated receptors (PARs) / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Lysosphingolipid and LPA receptors / G-protein activation / lysophosphatidic acid binding / G alpha (s) signalling events / Ca2+ pathway / G alpha (12/13) signalling events / Extra-nuclear estrogen signaling / G alpha (q) signalling events / Vasopressin regulates renal water homeostasis via Aquaporins / GPER1 signaling / negative regulation of cilium assembly / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (i) signalling events / corpus callosum development / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / ADP signalling through P2Y purinoceptor 1 / bleb assembly / cellular response to oxygen levels / optic nerve development / oligodendrocyte development / regulation of synaptic vesicle cycle / negative regulation of cAMP/PKA signal transduction / regulation of metabolic process / regulation of postsynaptic neurotransmitter receptor internalization / positive regulation of Rho protein signal transduction / positive regulation of dendritic spine development / G-protein alpha-subunit binding / positive regulation of stress fiber assembly / neurogenesis / myelination / cerebellum development / dendritic shaft / cell chemotaxis / PDZ domain binding / electron transport chain / G protein-coupled receptor activity / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / GABA-ergic synapse / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / 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 / regulation of cell shape / signaling receptor complex adaptor activity / negative regulation of neuron projection development / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / positive regulation of cytosolic calcium ion concentration / presynaptic membrane Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||
| Biological species | ![]() Homo sapiens (human)synthetic construct (others) ![]() | |||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.04 Å | |||||||||||||||||||||||||||||||||||||||||||||
Authors | Suzuki, S. / Nishikawa, K. / Kamegawa, A. / Hiroaki, Y. / Suzuki, H. / Fujiyoshi, Y. | |||||||||||||||||||||||||||||||||||||||||||||
| Funding support | Japan, 1items
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Citation | Journal: J Struct Biol / Year: 2025Title: Structural insights into the engagement of lysophosphatidic acid receptor 1 with different G proteins. Authors: Shota Suzuki / Kotaro Tanaka / Akiko Kamegawa / Kouki Nishikawa / Hiroshi Suzuki / Atsunori Oshima / Yoshinori Fujiyoshi / ![]() Abstract: Lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) are bioactive lysophospholipids derived from cell membranes that activate the endothelial differentiation gene family of G protein- ...Lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) are bioactive lysophospholipids derived from cell membranes that activate the endothelial differentiation gene family of G protein-coupled receptors. Activation of these receptors triggers multiple downstream signaling cascades through G proteins such as Gi/o, Gq/11, and G12/13. Therefore, LPA and S1P mediate several physiological processes, including cytoskeletal dynamics, neurite retraction, cell migration, cell proliferation, and intracellular ion fluxes. The basis for the G-protein coupling selectivity of EDG receptors, however, remains unknown. Here, we present cryo-electron microscopy structures of LPA-activated LPA1 in complexes with G, G, and G heterotrimers Comparison of the three LPA1-G protein structures shows clearly different conformations of intracellular loop 2 (ICL2) and ICL3 that are likely induced by the different Gα protein interfaces. Interestingly, this G-protein interface interaction is a common feature of LPA and S1P receptors. Our findings provide clues to understanding the promiscuity of G-protein coupling in the endothelial differentiation gene family. | |||||||||||||||||||||||||||||||||||||||||||||
| 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 | 9izh.cif.gz | 274.6 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9izh.ent.gz | 206.6 KB | Display | PDB format |
| PDBx/mmJSON format | 9izh.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9izh_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
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| Full document | 9izh_full_validation.pdf.gz | 1.2 MB | Display | |
| Data in XML | 9izh_validation.xml.gz | 42.9 KB | Display | |
| Data in CIF | 9izh_validation.cif.gz | 65.3 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/iz/9izh ftp://data.pdbj.org/pub/pdb/validation_reports/iz/9izh | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 61033MC ![]() 9izfC ![]() 9izgC 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
-Protein , 2 types, 2 molecules RA
| #1: Protein | Mass: 73188.500 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: N-terminal HA signal sequence, FLAG tag C-terminal LgBiT Source: (gene. exp.) ![]() Homo sapiens (human), (gene. exp.) synthetic construct (others)Gene: cybC, LPAR1, EDG2, LPA1 / Production host: ![]() |
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| #2: Protein | Mass: 26386.150 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: ![]() |
-Guanine nucleotide-binding protein ... , 2 types, 2 molecules BC
| #3: Protein | Mass: 41772.562 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: ![]() |
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| #4: Protein | Mass: 7729.947 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Antibody / Non-polymers , 2 types, 2 molecules S

| #5: Antibody | Mass: 26466.486 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) synthetic construct (others) / Production host: ![]() |
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| #6: Chemical | ChemComp-NKP / ( |
-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
| Component | Name: Multiprotein complex / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT |
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| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Conc.: 15 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES / Details: This sample was monodisperse |
| Vitrification | Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 298 K |
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Electron microscopy imaging
| Microscopy | Model: JEOL CRYO ARM 300 |
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| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 71 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.04 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 727119 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi





Homo sapiens (human)

Japan, 1items
Citation




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FIELD EMISSION GUN