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- PDB-8usw: CNQX-bound GluN1a-3A NMDA receptor -

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Basic information

Entry
Database: PDB / ID: 8usw
TitleCNQX-bound GluN1a-3A NMDA receptor
Components
  • Glutamate receptor ionotropic, NMDA 1
  • Glutamate receptor ionotropic, NMDA 3A
KeywordsMEMBRANE PROTEIN / Channel / receptor
Function / homology
Function and homology information


serine binding / negative regulation of dendritic spine development / glycine-gated cation channel activity / pons maturation / positive regulation of Schwann cell migration / regulation of cell communication / EPHB-mediated forward signaling / Assembly and cell surface presentation of NMDA receptors / olfactory learning / conditioned taste aversion ...serine binding / negative regulation of dendritic spine development / glycine-gated cation channel activity / pons maturation / positive regulation of Schwann cell migration / regulation of cell communication / EPHB-mediated forward signaling / Assembly and cell surface presentation of NMDA receptors / olfactory learning / conditioned taste aversion / dendritic branch / regulation of respiratory gaseous exchange / protein localization to postsynaptic membrane / transmitter-gated monoatomic ion channel activity / response to glycine / propylene metabolic process / glutamate receptor activity / Synaptic adhesion-like molecules / regulation of monoatomic cation transmembrane transport / Assembly and cell surface presentation of NMDA receptors / NMDA glutamate receptor activity / RAF/MAP kinase cascade / voltage-gated monoatomic cation channel activity / neurotransmitter receptor complex / NMDA selective glutamate receptor complex / ligand-gated sodium channel activity / response to morphine / calcium ion transmembrane import into cytosol / glutamate binding / regulation of axonogenesis / neuromuscular process / regulation of dendrite morphogenesis / protein heterotetramerization / regulation of synapse assembly / male mating behavior / glycine binding / positive regulation of reactive oxygen species biosynthetic process / parallel fiber to Purkinje cell synapse / positive regulation of calcium ion transport into cytosol / suckling behavior / response to amine / startle response / social behavior / monoatomic cation transmembrane transport / associative learning / dendrite development / regulation of neuronal synaptic plasticity / cellular response to glycine / monoatomic cation transport / excitatory synapse / positive regulation of excitatory postsynaptic potential / positive regulation of dendritic spine maintenance / monoatomic ion channel complex / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / cellular response to manganese ion / glutamate receptor binding / synaptic cleft / prepulse inhibition / phosphatase binding / monoatomic cation channel activity / glutamate-gated receptor activity / calcium ion homeostasis / response to fungicide / regulation of neuron apoptotic process / presynaptic active zone membrane / glutamate-gated calcium ion channel activity / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / sensory perception of pain / presynaptic modulation of chemical synaptic transmission / sodium ion transmembrane transport / response to amphetamine / ionotropic glutamate receptor signaling pathway / positive regulation of synaptic transmission, glutamatergic / hippocampal mossy fiber to CA3 synapse / protein phosphatase 2A binding / adult locomotory behavior / learning / regulation of membrane potential / excitatory postsynaptic potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / regulation of long-term neuronal synaptic plasticity / synaptic membrane / modulation of chemical synaptic transmission / postsynaptic density membrane / terminal bouton / : / visual learning / cerebral cortex development / calcium ion transmembrane transport / regulation of synaptic plasticity / calcium channel activity / memory / neuron cellular homeostasis / intracellular calcium ion homeostasis / synaptic vesicle membrane / response to calcium ion / calcium ion transport
Similarity search - Function
: / : / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. ...: / : / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like I
Similarity search - Domain/homology
: / Glutamate receptor ionotropic, NMDA 1 / Glutamate receptor ionotropic, NMDA 3A
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.23 Å
AuthorsMichalski, K. / Furukawa, H.
Funding support United States, 4items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)NS11745, United States
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)MH085926 United States
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)F32MH121061 United States
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)NS113632 United States
CitationJournal: Sci Adv / Year: 2024
Title: Structure and function of GluN1-3A NMDA receptor excitatory glycine receptor channel.
Authors: Kevin Michalski / Hiro Furukawa /
Abstract: -methyl-d-aspartate receptors (NMDARs) and other ionotropic glutamate receptors (iGluRs) mediate most of the excitatory signaling in the mammalian brains in response to the neurotransmitter glutamate. ...-methyl-d-aspartate receptors (NMDARs) and other ionotropic glutamate receptors (iGluRs) mediate most of the excitatory signaling in the mammalian brains in response to the neurotransmitter glutamate. Uniquely, NMDARs composed of GluN1 and GluN3 are activated exclusively by glycine, the neurotransmitter conventionally mediating inhibitory signaling when it binds to pentameric glycine receptors. The GluN1-3 NMDARs are vital for regulating neuronal excitability, circuit function, and specific behaviors, yet our understanding of their functional mechanism at the molecular level has remained limited. Here, we present cryo-electron microscopy structures of GluN1-3A NMDARs bound to an antagonist, CNQX, and an agonist, glycine. The structures show a 1-3-1-3 subunit heterotetrameric arrangement and an unprecedented pattern of GluN3A subunit orientation shift between the glycine-bound and CNQX-bound structures. Site-directed disruption of the unique subunit interface in the glycine-bound structure mitigated desensitization. Our study provides a foundation for understanding the distinct structural dynamics of GluN3 that are linked to the unique function of GluN1-3 NMDARs.
History
DepositionOct 30, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 17, 2024Provider: repository / Type: Initial release
Revision 1.1Apr 24, 2024Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID
Revision 1.2Oct 23, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Glutamate receptor ionotropic, NMDA 1
B: Glutamate receptor ionotropic, NMDA 3A
C: Glutamate receptor ionotropic, NMDA 1
D: Glutamate receptor ionotropic, NMDA 3A
hetero molecules


Theoretical massNumber of molelcules
Total (without water)400,2226
Polymers399,7584
Non-polymers4642
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Glutamate receptor ionotropic, NMDA 1


Mass: 95041.672 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: Grin1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P35439
#2: Protein Glutamate receptor ionotropic, NMDA 3A


Mass: 104837.195 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GRIN3A / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q8TCU5
#3: Chemical ChemComp-DQC / 7-nitro-2,3-dioxo-1,2,3,4-tetrahydroquinoxaline-6-carbonitrile


Mass: 232.152 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C9H4N4O4 / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: CNQX-bound GluN1-3A NMDA receptor / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Molecular weightValue: 0.4 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: OTHER / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: cryoSPARC / Category: 3D reconstruction
CTF correctionType: NONE
3D reconstructionResolution: 4.23 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 264487 / Symmetry type: POINT

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