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Open data
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Basic information
Entry | Database: PDB / ID: 8usw | |||||||||||||||
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Title | CNQX-bound GluN1a-3A NMDA receptor | |||||||||||||||
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![]() | MEMBRANE PROTEIN / Channel / receptor | |||||||||||||||
Function / homology | ![]() 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 / response to glycoside / regulation of monoatomic cation transmembrane transport / Assembly and cell surface presentation of NMDA receptors / NMDA glutamate receptor activity / Synaptic adhesion-like molecules / RAF/MAP kinase cascade / voltage-gated monoatomic cation channel activity / neurotransmitter receptor complex / NMDA selective glutamate receptor complex / ligand-gated sodium channel activity / glutamate binding / response to morphine / regulation of axonogenesis / calcium ion transmembrane import into cytosol / neuromuscular process / regulation of dendrite morphogenesis / protein heterotetramerization / male mating behavior / glycine binding / regulation of synapse assembly / response to amine / parallel fiber to Purkinje cell synapse / suckling behavior / startle response / positive regulation of reactive oxygen species biosynthetic process / monoatomic cation transmembrane transport / dendrite development / positive regulation of calcium ion transport into cytosol / regulation of neuron apoptotic process / associative learning / cellular response to glycine / monoatomic cation transport / excitatory synapse / social behavior / positive regulation of dendritic spine maintenance / regulation of neuronal synaptic plasticity / monoatomic ion channel complex / positive regulation of excitatory postsynaptic potential / cellular response to manganese ion / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / synaptic cleft / prepulse inhibition / phosphatase binding / monoatomic cation channel activity / calcium ion homeostasis / response to fungicide / glutamate-gated receptor activity / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / sensory perception of pain / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / sodium ion transmembrane transport / presynaptic modulation of chemical synaptic transmission / 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 / excitatory postsynaptic potential / regulation of membrane potential / learning / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / synaptic membrane / regulation of long-term neuronal synaptic plasticity / postsynaptic density membrane / modulation of chemical synaptic transmission / cerebral cortex development / calcium ion transmembrane transport / visual learning / regulation of synaptic plasticity / calcium channel activity / memory / neuron cellular homeostasis / response to calcium ion / intracellular calcium ion homeostasis / terminal bouton / calcium ion transport / synaptic vesicle membrane Similarity search - Function | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.23 Å | |||||||||||||||
![]() | Michalski, K. / Furukawa, H. | |||||||||||||||
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![]() | ![]() 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. | |||||||||||||||
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 464.7 KB | Display | ![]() |
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PDB format | ![]() | 342.5 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.3 MB | Display | ![]() |
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Full document | ![]() | 1.4 MB | Display | |
Data in XML | ![]() | 82.8 KB | Display | |
Data in CIF | ![]() | 128.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 42520MC ![]() 8usxC ![]() 8uueC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 95041.672 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Protein | Mass: 104837.195 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #3: Chemical | Mass: 232.152 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C9H4N4O4 / Feature type: SUBJECT OF INVESTIGATION Has ligand of interest | Y | Has protein modification | 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 |
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Sample preparation
Component | Name: CNQX-bound GluN1-3A NMDA receptor / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Molecular weight | Value: 0.4 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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: ![]() |
Electron lens | Mode: OTHER / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
EM software | Name: cryoSPARC / Category: 3D reconstruction |
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CTF correction | Type: NONE |
3D reconstruction | Resolution: 4.23 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 264487 / Symmetry type: POINT |