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Open data
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Basic information
| Entry | Database: PDB / ID: 8usx | |||||||||||||||||||||||||||||||||||||||||||||
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| Title | Glycine-bound GluN1a-3A NMDA receptor | |||||||||||||||||||||||||||||||||||||||||||||
Components |
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Keywords | MEMBRANE PROTEIN / Channel / receptor | |||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationserine binding / negative regulation of dendritic spine development / glycine-gated cation channel activity / excitatory chemical synaptic transmission / Synaptic adhesion-like molecules / propylene metabolic process / response to glycine / glutamate receptor activity / neurotransmitter receptor complex / Assembly and cell surface presentation of NMDA receptors ...serine binding / negative regulation of dendritic spine development / glycine-gated cation channel activity / excitatory chemical synaptic transmission / Synaptic adhesion-like molecules / propylene metabolic process / response to glycine / glutamate receptor activity / neurotransmitter receptor complex / Assembly and cell surface presentation of NMDA receptors / regulation of monoatomic cation transmembrane transport / Neurexins and neuroligins / NMDA glutamate receptor activity / NMDA selective glutamate receptor complex / glutamate binding / ligand-gated sodium channel activity / calcium ion transmembrane import into cytosol / protein heterotetramerization / glycine binding / positive regulation of reactive oxygen species biosynthetic process / dendrite development / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / monoatomic cation transmembrane transport / Long-term potentiation / positive regulation of calcium ion transport into cytosol / regulation of neuronal synaptic plasticity / monoatomic cation transport / prepulse inhibition / ligand-gated monoatomic ion channel activity / synaptic cleft / calcium ion homeostasis / positive regulation of synaptic transmission, glutamatergic / EPHB-mediated forward signaling / glutamate-gated calcium ion channel activity / excitatory synapse / ionotropic glutamate receptor signaling pathway / protein phosphatase 2A binding / presynaptic modulation of chemical synaptic transmission / Ras activation upon Ca2+ influx through NMDA receptor / positive regulation of excitatory postsynaptic potential / sodium ion transmembrane transport / synaptic membrane / synaptic transmission, glutamatergic / excitatory postsynaptic potential / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / brain development / regulation of synaptic plasticity / visual learning / postsynaptic density membrane / modulation of chemical synaptic transmission / calcium ion transmembrane transport / calcium channel activity / terminal bouton / synaptic vesicle / calcium ion transport / rhythmic process / amyloid-beta binding / presynapse / RAF/MAP kinase cascade / signaling receptor activity / dendritic spine / chemical synaptic transmission / response to ethanol / calmodulin binding / postsynaptic membrane / neuron projection / postsynaptic density / neuronal cell body / calcium ion binding / synapse / dendrite / endoplasmic reticulum membrane / protein-containing complex binding / glutamatergic synapse / cell surface / positive regulation of transcription by RNA polymerase II / membrane / identical protein binding / plasma membrane / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) | |||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.1 Å | |||||||||||||||||||||||||||||||||||||||||||||
Authors | Michalski, K. / Furukawa, H. | |||||||||||||||||||||||||||||||||||||||||||||
| Funding support | United States, 4items
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Citation | Journal: Sci Adv / Year: 2024Title: 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: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8usx.cif.gz | 465.8 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8usx.ent.gz | 340.7 KB | Display | PDB format |
| PDBx/mmJSON format | 8usx.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/us/8usx ftp://data.pdbj.org/pub/pdb/validation_reports/us/8usx | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 42522MC ![]() 8uswC ![]() 8uueC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 95055.695 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GRIN1, NMDAR1 / Production host: ![]() #2: Protein | 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: ![]() 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: Glycine-bound GluN1-3A NMDA receptor / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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| Molecular weight | Value: 0.4 MDa / Experimental value: NO |
| Source (natural) | Organism: Homo sapiens (human) |
| 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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: OTHER / Nominal defocus max: 2200 nm / Nominal defocus min: 800 nm |
| Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: NONE | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 4.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 225900 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
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About Yorodumi




Homo sapiens (human)
United States, 4items
Citation




PDBj












FIELD EMISSION GUN