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- PDB-6n4y: Metabotropic Glutamate Receptor 5 Extracellular Domain with Nb43 -

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Basic information

Entry
Database: PDB / ID: 6n4y
TitleMetabotropic Glutamate Receptor 5 Extracellular Domain with Nb43
Components
  • Metabotropic glutamate receptor 5
  • Nanobody 43Single-domain antibody
KeywordsMEMBRANE PROTEIN / Cell Surface Receptor Nanobody
Function / homology
Function and homology information


A2A adenosine receptor binding / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / trans-synaptic signaling by endocannabinoid, modulating synaptic transmission / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / positive regulation of long-term neuronal synaptic plasticity / desensitization of G protein-coupled receptor signaling pathway / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / astrocyte projection / G protein-coupled glutamate receptor signaling pathway ...A2A adenosine receptor binding / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / G protein-coupled receptor activity involved in regulation of postsynaptic membrane potential / trans-synaptic signaling by endocannabinoid, modulating synaptic transmission / adenylate cyclase inhibiting G protein-coupled glutamate receptor activity / positive regulation of long-term neuronal synaptic plasticity / desensitization of G protein-coupled receptor signaling pathway / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / astrocyte projection / G protein-coupled glutamate receptor signaling pathway / Class C/3 (Metabotropic glutamate/pheromone receptors) / protein kinase C-activating G protein-coupled receptor signaling pathway / glutamate receptor activity / Neurexins and neuroligins / protein tyrosine kinase activator activity / : / regulation of synaptic transmission, glutamatergic / protein tyrosine kinase binding / dendritic shaft / locomotory behavior / learning / G protein-coupled receptor activity / postsynaptic density membrane / synapse organization / Schaffer collateral - CA1 synapse / cognition / cellular response to amyloid-beta / G alpha (q) signalling events / chemical synaptic transmission / positive regulation of MAPK cascade / dendritic spine / learning or memory / glutamatergic synapse / dendrite / regulation of DNA-templated transcription / 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 2. / GPCR, family 3, nine cysteines domain / GPCR, family 3, nine cysteines domain superfamily / Nine Cysteines Domain of family 3 GPCR ...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 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 / G-protein coupled receptors family 3 signature 3. / GPCR, family 3 / GPCR family 3, C-terminal / 7 transmembrane sweet-taste receptor of 3 GCPR / G-protein coupled receptors family 3 profile. / 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)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.262 Å
AuthorsKoehl, A. / Hu, H. / Feng, D. / Sun, B. / Chu, M. / Weis, W.I. / Mathiesen, J.M. / Skiniotis, G. / Kobilka, B.K.
Funding support United States, 2items
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, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 23, 2019Provider: repository / Type: Initial release
Revision 1.1Feb 6, 2019Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Feb 20, 2019Group: Data collection / Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Dec 18, 2019Group: Author supporting evidence / Data collection / Category: chem_comp / pdbx_audit_support
Item: _chem_comp.type / _pdbx_audit_support.funding_organization
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_validate_close_contact / struct_asym / struct_conn / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_seq_id_2 / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_comp_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Oct 11, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_conn
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_leaving_atom_flag

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Metabotropic glutamate receptor 5
B: Metabotropic glutamate receptor 5
C: Metabotropic glutamate receptor 5
D: Metabotropic glutamate receptor 5
E: Nanobody 43
F: Nanobody 43
G: Nanobody 43
H: Nanobody 43
hetero molecules


Theoretical massNumber of molelcules
Total (without water)327,59516
Polymers323,0018
Non-polymers4,5948
Water0
1
A: Metabotropic glutamate receptor 5
F: Nanobody 43
hetero molecules


Theoretical massNumber of molelcules
Total (without water)81,5424
Polymers80,7502
Non-polymers7922
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
B: Metabotropic glutamate receptor 5
E: Nanobody 43
hetero molecules


Theoretical massNumber of molelcules
Total (without water)82,1754
Polymers80,7502
Non-polymers1,4242
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
3
C: Metabotropic glutamate receptor 5
H: Nanobody 43
hetero molecules


Theoretical massNumber of molelcules
Total (without water)81,8664
Polymers80,7502
Non-polymers1,1162
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
4
D: Metabotropic glutamate receptor 5
G: Nanobody 43
hetero molecules


Theoretical massNumber of molelcules
Total (without water)82,0124
Polymers80,7502
Non-polymers1,2622
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)95.528, 158.389, 111.963
Angle α, β, γ (deg.)90.000, 101.930, 90.000
Int Tables number4
Space group name H-MP1211

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Components

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Protein / Antibody , 2 types, 8 molecules ABCDEFGH

#1: Protein
Metabotropic glutamate receptor 5 / / mGluR5


Mass: 67395.633 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GRM5, GPRC1E, MGLUR5 / Plasmid: pVL1392 / Cell line (production host): High Five / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P41594
#2: Antibody
Nanobody 43 / Single-domain antibody


Mass: 13354.672 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Details: Nanobody 43 / Source: (gene. exp.) Lama glama (llama) / Plasmid: PET SUMO / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3)

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Sugars , 5 types, 8 molecules

#3: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 570.542 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4[LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-1-2/a4-b1_a6-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#4: Polysaccharide alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2- ...alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 1203.105 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3[DManpa1-6]DManpb1-4DGlcpNAcb1-4[LFucpa1-3][LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/4,7,6/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5][a1122h-1b_1-5][a1122h-1a_1-5]/1-2-1-3-4-4-2/a3-b1_a4-c1_a6-g1_c4-d1_d3-e1_d6-f1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(3+1)][a-L-Fucp]{}[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}[(6+1)][a-D-Manp]{}}}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#5: Polysaccharide alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 894.823 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3DManpb1-3DGlcpNAcb1-4[LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/4,5,4/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5][a1221m-1a_1-5]/1-1-2-3-4/a4-b1_a6-e1_b3-c1_c3-d1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(3+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}}}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#6: Polysaccharide alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1- ...alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-3)][alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 1040.964 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-6DManpb1-4DGlcpNAcb1-4[LFucpa1-3][LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/4,6,5/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5][a1122h-1b_1-5][a1122h-1a_1-5]/1-2-1-3-4-2/a3-b1_a4-c1_a6-f1_c4-d1_d6-e1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(3+1)][a-L-Fucp]{}[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(6+1)][a-D-Manp]{}}}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#7: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE / N-Acetylglucosamine


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.73 Å3/Da / Density % sol: 54.9 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 18-20% PEG 3350 0.15M Potassium Nitrate 1% Benzamidine

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL12-2 / Wavelength: 0.97946 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: May 23, 2016
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97946 Å / Relative weight: 1
ReflectionResolution: 3.26→39.6 Å / Num. obs: 49878 / % possible obs: 98.4 % / Redundancy: 3.5 % / CC1/2: 0.926 / Rmerge(I) obs: 0.132 / Rpim(I) all: 0.083 / Rrim(I) all: 0.156 / Net I/σ(I): 7.6 / Num. measured all: 174911 / Scaling rejects: 21
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. measured allNum. unique obsCC1/2Rpim(I) allRrim(I) allNet I/σ(I) obs% possible all
3.26-3.373.40.8191502143890.6460.5120.9691.494
13.05-39.63.20.04624977780.9820.0320.05622.794.2

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Processing

Software
NameVersionClassification
PHENIX1.14_3211refinement
XDSdata reduction
Aimless0.5.25data scaling
PDB_EXTRACT3.24data extraction
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3LMK

3lmk


Resolution: 3.262→38.87 Å / SU ML: 0.46 / Cross valid method: THROUGHOUT / σ(F): 1.33 / Phase error: 28.09
RfactorNum. reflection% reflection
Rfree0.251 1999 4.01 %
Rwork0.1993 --
obs0.2014 49835 98.25 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso max: 170.07 Å2 / Biso mean: 79.1425 Å2 / Biso min: 34.3 Å2
Refinement stepCycle: final / Resolution: 3.262→38.87 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms19321 0 305 0 19626
Biso mean--125.39 --
Num. residues----2503
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 14

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
3.2625-3.3440.3781330.31013196332993
3.344-3.43440.35961450.27693440358599
3.4344-3.53540.3081430.25573453359699
3.5354-3.64940.33031420.24113413355599
3.6494-3.77970.31861420.22913397353998
3.7797-3.93090.26671420.20843387352998
3.9309-4.10960.26431450.1973470361599
4.1096-4.3260.25791440.18353424356899
4.326-4.59670.20621430.16213420356399
4.5967-4.95090.20871420.16133406354898
4.9509-5.44790.19931440.16633469361399
5.4479-6.23350.24031460.19173459360599
6.2335-7.84290.22311430.19983433357699
7.8429-38.8730.22251450.19073469361498

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