+Open data
-Basic information
Entry | Database: PDB / ID: 7ewl | ||||||||||||
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Title | cryo-EM structure of apo GPR158 | ||||||||||||
Components | Probable G-protein coupled receptor 158 | ||||||||||||
Keywords | SIGNALING PROTEIN / Class C orphan GPCR / depression / neuronal signaling / PAS-folded GPCR / noncanonical signaling GPCR | ||||||||||||
Function / homology | Function and homology information G protein-coupled glycine receptor activity / regulation of G protein-coupled receptor signaling pathway / positive regulation of neurotransmitter secretion / regulation of synapse organization / enzyme activator activity / cell projection / protein localization to plasma membrane / brain development / cognition / transmembrane signaling receptor activity ...G protein-coupled glycine receptor activity / regulation of G protein-coupled receptor signaling pathway / positive regulation of neurotransmitter secretion / regulation of synapse organization / enzyme activator activity / cell projection / protein localization to plasma membrane / brain development / cognition / transmembrane signaling receptor activity / presynaptic membrane / postsynaptic membrane / G protein-coupled receptor signaling pathway / nucleus / plasma membrane Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.52 Å | ||||||||||||
Authors | Jeong, E. / Kim, Y. / Jeong, J. / Cho, Y. | ||||||||||||
Funding support | Korea, Republic Of, 3items
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Citation | Journal: Nat Commun / Year: 2021 Title: Structure of the class C orphan GPCR GPR158 in complex with RGS7-Gβ5. Authors: Eunyoung Jeong / Yoojoong Kim / Jihong Jeong / Yunje Cho / Abstract: GPR158, a class C orphan GPCR, functions in cognition, stress-induced mood control, and synaptic development. Among class C GPCRs, GPR158 is unique as it lacks a Venus flytrap-fold ligand-binding ...GPR158, a class C orphan GPCR, functions in cognition, stress-induced mood control, and synaptic development. Among class C GPCRs, GPR158 is unique as it lacks a Venus flytrap-fold ligand-binding domain and terminates Gαi/o protein signaling through the RGS7-Gβ5 heterodimer. Here, we report the cryo-EM structures of GPR158 alone and in complex with one or two RGS7-Gβ5 heterodimers. GPR158 dimerizes through Per-Arnt-Sim-fold extracellular and transmembrane (TM) domains connected by an epidermal growth factor-like linker. The TM domain (TMD) reflects both inactive and active states of other class C GPCRs: a compact intracellular TMD, conformations of the two intracellular loops (ICLs) and the TMD interface formed by TM4/5. The ICL2, ICL3, TM3, and first helix of the cytoplasmic coiled-coil provide a platform for the DHEX domain of one RGS7 and the second helix recruits another RGS7. The unique features of the RGS7-binding site underlie the selectivity of GPR158 for RGS7. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7ewl.cif.gz | 299.4 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7ewl.ent.gz | 242.7 KB | Display | PDB format |
PDBx/mmJSON format | 7ewl.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ew/7ewl ftp://data.pdbj.org/pub/pdb/validation_reports/ew/7ewl | HTTPS FTP |
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-Related structure data
Related structure data | 31351MC 7ewpC 7ewrC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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-Components
#1: Protein | Mass: 77462.703 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GPR158 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q5T848 Has ligand of interest | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: GPR158 / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Molecular weight | Value: 200 kDa/nm / Experimental value: NO |
Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: Homo sapiens (human) / Cell: HEK293 |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 12.7 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE / Humidity: 100 % |
-Electron microscopy imaging
Experimental equipment | Model: Talos Arctica / Image courtesy: FEI Company |
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Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: DIFFRACTION |
Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3D reconstruction | Resolution: 3.52 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 425819 / Num. of class averages: 1 / Symmetry type: POINT |