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- EMDB-0345: Metabotropic Glutamate Receptor 5 bound to L-quisqualate and Nb43 -

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Basic information

Entry
Database: EMDB / ID: EMD-0345
TitleMetabotropic Glutamate Receptor 5 bound to L-quisqualate and Nb43
Map dataMetabotropic Glutamate Receptor 5 bound to L-quisqualate and Nb43, primary map
Sample
  • Complex: Complex between metabotropic glutamate receptor 5 bound to L-quisqualate and Nb43
    • Protein or peptide: Metabotropic glutamate receptor 5
    • Protein or peptide: Nanobody 43
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: (S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID
KeywordsCell Surface Receptor / MEMBRANE PROTEIN
Function / homology
Function and homology information


sensory perception of hot stimulus / A2A adenosine receptor binding / : / negative regulation of dendritic spine morphogenesis / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / operant conditioning / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / protein localization to nuclear inner membrane / positive regulation of cellular response to hypoxia ...sensory perception of hot stimulus / A2A adenosine receptor binding / : / negative regulation of dendritic spine morphogenesis / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / operant conditioning / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / protein localization to nuclear inner membrane / positive regulation of cellular response to hypoxia / positive regulation of long-term neuronal synaptic plasticity / desensitization of G protein-coupled receptor signaling pathway / positive regulation of sensory perception of pain / negative regulation of excitatory postsynaptic potential / positive regulation of dopamine secretion / G protein-coupled glutamate receptor signaling pathway / Class C/3 (Metabotropic glutamate/pheromone receptors) / positive regulation of neural precursor cell proliferation / glutamate receptor activity / nuclear inner membrane / Neurexins and neuroligins / astrocyte projection / response to corticosterone / response to morphine / temperature homeostasis / protein tyrosine kinase activator activity / conditioned place preference / regulation of synaptic transmission, glutamatergic / regulation of long-term synaptic depression / positive regulation of calcium-mediated signaling / protein tyrosine kinase binding / dendritic shaft / response to amphetamine / locomotory behavior / synapse organization / postsynaptic density membrane / G protein-coupled receptor activity / cognition / Schaffer collateral - CA1 synapse / cellular response to amyloid-beta / positive regulation of cytosolic calcium ion concentration / G alpha (q) signalling events / dendritic spine / response to ethanol / chemical synaptic transmission / learning or memory / positive regulation of MAPK cascade / response to antibiotic / neuronal cell body / dendrite / regulation of DNA-templated transcription / glutamatergic synapse / identical protein binding / plasma membrane / cytoplasm
Similarity search - Function
GPCR, family 3, metabotropic glutamate receptor 5 / Metabotropic glutamate receptor, Homer-binding domain / Homer-binding domain of metabotropic glutamate receptor / GluR_Homer-bdg / GPCR, family 3, metabotropic glutamate receptor / : / G-protein coupled receptors family 3 signature 1. / G-protein coupled receptors family 3 signature 3. / G-protein coupled receptors family 3 signature 2. / GPCR, family 3, nine cysteines domain ...GPCR, family 3, metabotropic glutamate receptor 5 / Metabotropic glutamate receptor, Homer-binding domain / Homer-binding domain of metabotropic glutamate receptor / GluR_Homer-bdg / GPCR, family 3, metabotropic glutamate receptor / : / G-protein coupled receptors family 3 signature 1. / G-protein coupled receptors family 3 signature 3. / G-protein coupled receptors family 3 signature 2. / GPCR, family 3, nine cysteines domain / GPCR, family 3, nine cysteines domain superfamily / Nine Cysteines Domain of family 3 GPCR / GPCR, family 3, conserved site / GPCR, family 3 / G-protein coupled receptors family 3 profile. / GPCR family 3, C-terminal / 7 transmembrane sweet-taste receptor of 3 GCPR / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like I
Similarity search - Domain/homology
Metabotropic glutamate receptor 5
Similarity search - Component
Biological speciesHomo sapiens (human) / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.0 Å
AuthorsKoehl A / Hu H
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)NS092695 United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)NS028471 United States
CitationJournal: Nature / Year: 2019
Title: Structural insights into the activation of metabotropic glutamate receptors.
Authors: Antoine Koehl / Hongli Hu / Dan Feng / Bingfa Sun / Yan Zhang / Michael J Robertson / Matthew Chu / Tong Sun Kobilka / Toon Laeremans / Jan Steyaert / Jeffrey Tarrasch / Somnath Dutta / ...Authors: Antoine Koehl / Hongli Hu / Dan Feng / Bingfa Sun / Yan Zhang / Michael J Robertson / Matthew Chu / Tong Sun Kobilka / Toon Laeremans / Jan Steyaert / Jeffrey Tarrasch / Somnath Dutta / Rasmus Fonseca / William I Weis / Jesper M Mathiesen / Georgios Skiniotis / Brian K Kobilka /
Abstract: Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich ...Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich domains to their 7-transmembrane domains. Spectroscopic studies show that signalling is a dynamic process, in which large-scale conformational changes underlie the transmission of signals from the extracellular Venus flytraps to the G protein-coupling domains-the 7-transmembrane domains-in the membrane. Here, using a combination of X-ray crystallography, cryo-electron microscopy and signalling studies, we present a structural framework for the activation mechanism of metabotropic glutamate receptor subtype 5. Our results show that agonist binding at the Venus flytraps leads to a compaction of the intersubunit dimer interface, thereby bringing the cysteine-rich domains into close proximity. Interactions between the cysteine-rich domains and the second extracellular loops of the receptor enable the rigid-body repositioning of the 7-transmembrane domains, which come into contact with each other to initiate signalling.
History
DepositionNov 20, 2018-
Header (metadata) releaseJan 23, 2019-
Map releaseJan 23, 2019-
UpdateNov 20, 2024-
Current statusNov 20, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6n51
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_0345.png

Downloads & links

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Map

FileDownload / File: emd_0345.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationMetabotropic Glutamate Receptor 5 bound to L-quisqualate and Nb43, primary map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 256 pix.
= 271.36 Å		1.06 Å/pix.
x 256 pix.
= 271.36 Å		1.06 Å/pix.
x 256 pix.
= 271.36 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.06 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.04 / Movie #1: 0.04
Minimum - Maximum-0.09093035 - 0.19565272
Average (Standard dev.)0.0004832205 (±0.007556318)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 271.36 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.061.061.06
M x/y/z256256256
origin x/y/z0.0000.0000.000
length x/y/z271.360271.360271.360
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS256256256
D min/max/mean-0.0910.1960.000

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Supplemental data

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Sample components

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Entire : Complex between metabotropic glutamate receptor 5 bound to L-quis...

EntireName: Complex between metabotropic glutamate receptor 5 bound to L-quisqualate and Nb43
Components
  • Complex: Complex between metabotropic glutamate receptor 5 bound to L-quisqualate and Nb43
    • Protein or peptide: Metabotropic glutamate receptor 5
    • Protein or peptide: Nanobody 43
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: (S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID

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Supramolecule #1: Complex between metabotropic glutamate receptor 5 bound to L-quis...

SupramoleculeName: Complex between metabotropic glutamate receptor 5 bound to L-quisqualate and Nb43
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 220 KDa

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Macromolecule #1: Metabotropic glutamate receptor 5

MacromoleculeName: Metabotropic glutamate receptor 5 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 90.484805 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: SERRVVAHMP GDIIIGALFS VHHQPTVDKV HERKCGAVRE QYGIQRVEAM LHTLERINSD PTLLPNITLG CEIRDSCWHS AVALEQSIE FIRDSLISSE EEEGLVRCVD GSSSSFRSKK PIVGVIGPGS SSVAIQVQNL LQLFNIPQIA YSATSMDLSD K TLFKYFMR ...String:
SERRVVAHMP GDIIIGALFS VHHQPTVDKV HERKCGAVRE QYGIQRVEAM LHTLERINSD PTLLPNITLG CEIRDSCWHS AVALEQSIE FIRDSLISSE EEEGLVRCVD GSSSSFRSKK PIVGVIGPGS SSVAIQVQNL LQLFNIPQIA YSATSMDLSD K TLFKYFMR VVPSDAQQAR AMVDIVKRYN WTYVSAVHTE GNYGESGMEA FKDMSAKEGI CIAHSYKIYS NAGEQSFDKL LK KLTSHLP KARVVACFCE GMTVRGLLMA MRRLGLAGEF LLLGSDGWAD RYDVTDGYQR EAVGGITIKL QSPDVKWFDD YYL KLRPET NHRNPWFQEF WQHRFQCRLE GFPQENSKYN KTCNSSLTLK THHVQDSKMG FVINAIYSMA YGLHNMQMSL CPGY AGLCD AMKPIDGRKL LESLMKTNFT GVSGDTILFD ENGDSPGRYE IMNFKEMGKD YFDYINVGSW DNGELKMDDD EVWSK KSNI IRSVCSEPCE KGQIKVIRKG EVSCCWTCTP CKENEYVFDE YTCKACQLGS WPTDDLTGCD LIPVQYLRWG DPEPIA AVV FACLGLLATL FVTVVFIIYR DTPVVKSSSR ELCYIILAGI CLGYLCTFCL IAKPKQIYCY LQRIGIGLSP AMSYSAL VT KTNRIARILA GSKKKICTKK PRFMSACAQL VIAFILICIQ LGIIVALFIM EPPDIMHDYP SIREVYLICN TTNLGVVT P LGYNGLLILS CTFYAFKTRN VPANFNEAKY IAFTMYTTCI IWLAFVPIYF GSNYKIITMC FSVSLSATVA LGCMFVPKV YIIL

UniProtKB: Metabotropic glutamate receptor 5

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Macromolecule #2: Nanobody 43

MacromoleculeName: Nanobody 43 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 13.354672 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
QVQLVESGGG LVQAGGSLRL SCAASGRTFT SYAMGWFRQA PGKERESVAA ISSSGGSTHY ADSVKGRFTI SRDNSKNTVY LQMNSLKPE DTAVYYCAAA MYGSRWPDWE YDYWGQGTQV TVSS

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Macromolecule #3: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 3 / Number of copies: 4 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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Macromolecule #4: (S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID

MacromoleculeName: (S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID
type: ligand / ID: 4 / Number of copies: 2 / Formula: QUS
Molecular weightTheoretical: 189.126 Da
Chemical component information

ChemComp-QUS:
(S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID / agonist*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration12 mg/mL
BufferpH: 7.5
Component:
ConcentrationFormulaName
100.0 mMNaClSodium Chloride
20.0 mMHepesHepes
0.02 PercentGDNGlyco-Disogenin
0.002 PercentCHSCholesteryl Hemisuccinate
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 80 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 390.0 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 293 K / Instrument: FEI VITROBOT MARK IV
Details: additional 0.1%OG was added to the sample right before applying sample to grid; 3.5ul sample was applied; blot for 1 second before plunging;.
DetailsSample was mono disperse as assayed by size exclusion chromatography

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average exposure time: 8.0 sec. / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Calibrated magnification: 47169 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 130000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER / Details: Ab initio map was generated by VIPER.
Final reconstructionApplied symmetry - Point group: C2 (2 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 4.0 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 2.1) / Number images used: 73472
Initial angle assignmentType: RANDOM ASSIGNMENT / Software - Name: cryoSPARC
Final angle assignmentType: PROJECTION MATCHING / Software - Name: RELION (ver. 2.1)

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Atomic model buiding 1

RefinementProtocol: FLEXIBLE FIT / Target criteria: Geometry
Output model

PDB-6n51:
Metabotropic Glutamate Receptor 5 bound to L-quisqualate and Nb43

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