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Yorodumi- PDB-8jcv: Cryo-EM structure of mGlu2-mGlu3 heterodimer in presence of LY341... -
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-Basic information
Entry | Database: PDB / ID: 8jcv | |||||||||
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Title | Cryo-EM structure of mGlu2-mGlu3 heterodimer in presence of LY341495 (dimerization mode II) | |||||||||
Components |
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Keywords | MEMBRANE PROTEIN / Complex structure / mGlu2-3 heterodimer | |||||||||
Function / homology | Function and homology information regulation of cellular component organization / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of cellular response to stress / signaling receptor inhibitor activity / macrolide binding / activin receptor binding / TORC1 complex / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / cytoplasmic side of membrane ...regulation of cellular component organization / regulation of response to drug / group II metabotropic glutamate receptor activity / regulation of cellular response to stress / signaling receptor inhibitor activity / macrolide binding / activin receptor binding / TORC1 complex / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / cytoplasmic side of membrane / intracellular glutamate homeostasis / behavioral response to nicotine / transforming growth factor beta receptor binding / TGFBR1 LBD Mutants in Cancer / type I transforming growth factor beta receptor binding / G protein-coupled glutamate receptor signaling pathway / astrocyte projection / negative regulation of activin receptor signaling pathway / negative regulation of adenylate cyclase activity / Class C/3 (Metabotropic glutamate/pheromone receptors) / heart trabecula formation / glutamate receptor activity / I-SMAD binding / glutamate secretion / regulation of amyloid precursor protein catabolic process / terminal cisterna / ryanodine receptor complex / ventricular cardiac muscle tissue morphogenesis / regulation of glutamate secretion / long-term synaptic depression / protein maturation by protein folding / 'de novo' protein folding / postsynaptic modulation of chemical synaptic transmission / FK506 binding / regulation of dopamine secretion / channel regulator activity / TGF-beta receptor signaling activates SMADs / mTORC1-mediated signalling / protein peptidyl-prolyl isomerization / Calcineurin activates NFAT / regulation of immune response / calcium channel regulator activity / regulation of ryanodine-sensitive calcium-release channel activity / heart morphogenesis / supramolecular fiber organization / regulation of synaptic transmission, glutamatergic / sarcoplasmic reticulum membrane / positive regulation of protein metabolic process / presynaptic modulation of chemical synaptic transmission / negative regulation of autophagy / T cell activation / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / sarcoplasmic reticulum / response to cocaine / peptidylprolyl isomerase / G protein-coupled receptor activity / peptidyl-prolyl cis-trans isomerase activity / negative regulation of transforming growth factor beta receptor signaling pathway / calcium ion transmembrane transport / Z disc / SARS-CoV-1 activates/modulates innate immune responses / protein folding / positive regulation of protein binding / regulation of protein localization / presynaptic membrane / gene expression / protein refolding / G alpha (i) signalling events / scaffold protein binding / chemical synaptic transmission / positive regulation of canonical NF-kappaB signal transduction / postsynaptic membrane / transmembrane transporter binding / amyloid fibril formation / Potential therapeutics for SARS / dendritic spine / postsynaptic density / positive regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction / non-specific serine/threonine protein kinase / axon / protein serine/threonine kinase activity / glutamatergic synapse / dendrite / protein-containing complex binding / ATP binding / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å | |||||||||
Authors | Wang, X. / Wang, M. / Xu, T. / Feng, Y. / Han, S. / Zhao, Q. / Wu, B. | |||||||||
Funding support | China, 2items
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Citation | Journal: Cell Res / Year: 2023 Title: Structural insights into dimerization and activation of the mGlu2-mGlu3 and mGlu2-mGlu4 heterodimers. Authors: Xinwei Wang / Mu Wang / Tuo Xu / Ye Feng / Qiang Shao / Shuo Han / Xiaojing Chu / Yechun Xu / Shuling Lin / Qiang Zhao / Beili Wu / Abstract: Heterodimerization of the metabotropic glutamate receptors (mGlus) has shown importance in the functional modulation of the receptors and offers potential drug targets for treating central nervous ...Heterodimerization of the metabotropic glutamate receptors (mGlus) has shown importance in the functional modulation of the receptors and offers potential drug targets for treating central nervous system diseases. However, due to a lack of molecular details of the mGlu heterodimers, understanding of the mechanisms underlying mGlu heterodimerization and activation is limited. Here we report twelve cryo-electron microscopy (cryo-EM) structures of the mGlu2-mGlu3 and mGlu2-mGlu4 heterodimers in different conformational states, including inactive, intermediate inactive, intermediate active and fully active conformations. These structures provide a full picture of conformational rearrangement of mGlu2-mGlu3 upon activation. The Venus flytrap domains undergo a sequential conformational change, while the transmembrane domains exhibit a substantial rearrangement from an inactive, symmetric dimer with diverse dimerization patterns to an active, asymmetric dimer in a conserved dimerization mode. Combined with functional data, these structures reveal that stability of the inactive conformations of the subunits and the subunit-G protein interaction pattern are determinants of asymmetric signal transduction of the heterodimers. Furthermore, a novel binding site for two mGlu4 positive allosteric modulators was observed in the asymmetric dimer interfaces of the mGlu2-mGlu4 heterodimer and mGlu4 homodimer, and may serve as a drug recognition site. These findings greatly extend our knowledge about signal transduction of the mGlus. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8jcv.cif.gz | 277.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8jcv.ent.gz | 203.4 KB | Display | PDB format |
PDBx/mmJSON format | 8jcv.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8jcv_validation.pdf.gz | 542.4 KB | Display | wwPDB validaton report |
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Full document | 8jcv_full_validation.pdf.gz | 556.4 KB | Display | |
Data in XML | 8jcv_validation.xml.gz | 29.7 KB | Display | |
Data in CIF | 8jcv_validation.cif.gz | 44.3 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/jc/8jcv ftp://data.pdbj.org/pub/pdb/validation_reports/jc/8jcv | HTTPS FTP |
-Related structure data
Related structure data | 36166MC 8jcuC 8jcwC 8jcxC 8jcyC 8jczC 8jd0C 8jd1C 8jd2C 8jd3C 8jd4C 8jd5C 8jd6C M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 109340.875 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Author stated 'all the data are processed in Cryosparc with default prameters, as all the other deposition. There should be no contamination.' Source: (gene. exp.) Homo sapiens (human) / Gene: GRM2, GPRC1B, MGLUR2, FKBP1A, FKBP1, FKBP12 Production host: mammal environmental sample (environmental samples) References: UniProt: Q14416, UniProt: P62942, peptidylprolyl isomerase | ||||
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#2: Protein | Mass: 112712.961 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GRM3, GPRC1C, MGLUR3, MTOR Production host: mammal environmental sample (environmental samples) References: UniProt: Q14832, UniProt: A0A8V8TRG9, non-specific serine/threonine protein kinase | ||||
#3: Sugar | #4: Chemical | Has ligand of interest | Y | |
-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: mGlu2-3 heterodimer in presence of LY341495 / Type: COMPLEX / Entity ID: #1-#2 / Source: MULTIPLE SOURCES |
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Source (natural) | Organism: Homo sapiens (human) |
Source (recombinant) | Organism: mammal environmental sample (environmental samples) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-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: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 800 nm |
Image recording | Electron dose: 70 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
-Processing
CTF correction | Type: NONE | ||||||||||||||||||||||||
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3D reconstruction | Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 199444 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 95.67 Å2 | ||||||||||||||||||||||||
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