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Open data
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Basic information
Entry | Database: PDB / ID: 9v0u | ||||||
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Title | GPR133-Gain-miniG13 complex | ||||||
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![]() | MEMBRANE PROTEIN / GPCR / G12/G13 / Complex / Stachel | ||||||
Function / homology | ![]() D5 dopamine receptor binding / regulation of fibroblast migration / Rho-activating G protein-coupled receptor signaling pathway / regulation of small GTPase mediated signal transduction / NRAGE signals death through JNK / branching involved in blood vessel morphogenesis / CDC42 GTPase cycle / regulation of postsynapse assembly / Rho protein signal transduction / RAC1 GTPase cycle ...D5 dopamine receptor binding / regulation of fibroblast migration / Rho-activating G protein-coupled receptor signaling pathway / regulation of small GTPase mediated signal transduction / NRAGE signals death through JNK / branching involved in blood vessel morphogenesis / CDC42 GTPase cycle / regulation of postsynapse assembly / Rho protein signal transduction / RAC1 GTPase cycle / guanyl-nucleotide exchange factor activity / brush border membrane / G protein-coupled receptor activity / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / platelet activation / regulation of blood pressure / G-protein beta/gamma-subunit complex binding / 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 / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / 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 / melanosome / 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 / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / G protein activity / 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 / in utero embryonic development / Ras protein signal transduction / cell differentiation / Extra-nuclear estrogen signaling / cell population proliferation / cell surface receptor signaling pathway / postsynapse / nuclear speck / G protein-coupled receptor signaling pathway / lysosomal membrane / focal adhesion / GTPase activity / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / nucleoplasm / metal ion binding / nucleus / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.51 Å | ||||||
![]() | Xi, Y. / Pu, X. / Ping, Y. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structural elucidation and molecular mechanism of the GPR133-G13 signaling complex. Authors: Xuanyu Pu / Yue-Tong Xi / Meng-Xin Wang / Daolai Zhang / Yu-Qi Ping / Peng Xiao / Jin-Peng Sun / ![]() Abstract: GPR133 is an adhesion-class G protein-coupled receptor (GPCR) that has recently been de-orphanized. Its functions are complex and multifaceted. While GPR133 is primarily recognized for coupling with ...GPR133 is an adhesion-class G protein-coupled receptor (GPCR) that has recently been de-orphanized. Its functions are complex and multifaceted. While GPR133 is primarily recognized for coupling with the Gs subunit to mediate elevated intracellular cAMP levels, its potential engagement with alternative signaling pathways remains poorly characterized. In our experiments, we demonstrated that GPR133 exhibits constitutive self-activation via its Stachel sequence as an adhesion GPCR, enabling activation of downstream G13 signaling. We reconstituted the GPR133-GAIN-miniGα13 complex in vitro and resolved its cryo-electron microscopy structure at a resolution of 3.51 Å. Detailed structural comparisons between the GPR133-GAIN-miniGα13 complex and the previously resolved GPR133-CTF-Gs structure highlighted both conserved and different features. These findings provide critical insights into the signal transduction mechanisms of GPR133 and lay a foundation for targeted therapeutic strategies. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 166.1 KB | Display | ![]() |
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PDB format | ![]() | 118.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 34.6 KB | Display | |
Data in CIF | ![]() | 51.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 64672MC 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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Components
#1: Protein | Mass: 65688.828 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#2: Protein | Mass: 26705.596 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#3: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#4: Protein | Mass: 37784.301 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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: GPR133-Gain-miniG13-Gbeta1-Ggamma2 complex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
CTF correction | Type: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 3.51 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 45759 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 74.64 Å2 | ||||||||||||||||||||||||
Refine LS restraints |
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