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Yorodumi- PDB-9arf: Rat GluN1-GluN2B NMDA receptor channel in complex with glycine, g... -
+Open data
-Basic information
Entry | Database: PDB / ID: 9arf | |||||||||
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Title | Rat GluN1-GluN2B NMDA receptor channel in complex with glycine, glutamate, and EU-1622-A, in nonactive1 conformation | |||||||||
Components | (Glutamate receptor ionotropic, NMDA ...) x 2 | |||||||||
Keywords | MEMBRANE PROTEIN / Ion channel / ionotropic glutamate receptor / synaptic membrane protein | |||||||||
Function / homology | Function and homology information neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential / cellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / regulation of postsynaptic cytosolic calcium ion concentration / sensory organ development / sensitization / pons maturation / regulation of cell communication / positive regulation of Schwann cell migration ...neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential / cellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / regulation of postsynaptic cytosolic calcium ion concentration / sensory organ development / sensitization / pons maturation / regulation of cell communication / positive regulation of Schwann cell migration / EPHB-mediated forward signaling / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / response to hydrogen sulfide / Assembly and cell surface presentation of NMDA receptors / olfactory learning / regulation of protein kinase A signaling / conditioned taste aversion / apical dendrite / dendritic branch / regulation of respiratory gaseous exchange / positive regulation of inhibitory postsynaptic potential / response to other organism / protein localization to postsynaptic membrane / regulation of ARF protein signal transduction / response to methylmercury / fear response / propylene metabolic process / response to glycine / positive regulation of cysteine-type endopeptidase activity / cellular response to dsRNA / response to carbohydrate / negative regulation of dendritic spine maintenance / interleukin-1 receptor binding / voltage-gated monoatomic cation channel activity / cellular response to lipid / regulation of monoatomic cation transmembrane transport / positive regulation of glutamate secretion / response to morphine / response to growth hormone / NMDA glutamate receptor activity / Synaptic adhesion-like molecules / RAF/MAP kinase cascade / parallel fiber to Purkinje cell synapse / NMDA selective glutamate receptor complex / response to manganese ion / NMDA selective glutamate receptor signaling pathway / calcium ion transmembrane import into cytosol / neuromuscular process / glutamate binding / protein heterotetramerization / positive regulation of reactive oxygen species biosynthetic process / regulation of synapse assembly / regulation of axonogenesis / regulation of dendrite morphogenesis / positive regulation of calcium ion transport into cytosol / male mating behavior / glycine binding / heterocyclic compound binding / receptor clustering / suckling behavior / behavioral response to pain / startle response / response to amine / small molecule binding / action potential / : / monoatomic cation transmembrane transport / regulation of neuronal synaptic plasticity / monoatomic cation transport / associative learning / regulation of MAPK cascade / positive regulation of excitatory postsynaptic potential / social behavior / response to magnesium ion / cellular response to organic cyclic compound / ligand-gated monoatomic ion channel activity / extracellularly glutamate-gated ion channel activity / cellular response to glycine / excitatory synapse / positive regulation of dendritic spine maintenance / regulation of postsynaptic membrane potential / Unblocking of NMDA receptors, glutamate binding and activation / phosphatase binding / behavioral fear response / neuron development / postsynaptic density, intracellular component / cellular response to manganese ion / glutamate receptor binding / multicellular organismal response to stress / long-term memory / detection of mechanical stimulus involved in sensory perception of pain / prepulse inhibition / D2 dopamine receptor binding / monoatomic cation channel activity / calcium ion homeostasis / regulation of neuron apoptotic process / response to electrical stimulus / synaptic cleft / response to mechanical stimulus / glutamate-gated receptor activity Similarity search - Function | |||||||||
Biological species | Rattus norvegicus (Norway rat) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.13 Å | |||||||||
Authors | Chou, T.-H. / Furukawa, H. | |||||||||
Funding support | United States, 2items
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Citation | Journal: Nature / Year: 2024 Title: Molecular mechanism of ligand gating and opening of NMDA receptor. Authors: Tsung-Han Chou / Max Epstein / Russell G Fritzemeier / Nicholas S Akins / Srinu Paladugu / Elijah Z Ullman / Dennis C Liotta / Stephen F Traynelis / Hiro Furukawa / Abstract: Glutamate transmission and activation of ionotropic glutamate receptors are the fundamental means by which neurons control their excitability and neuroplasticity. The N-methyl-D-aspartate receptor ...Glutamate transmission and activation of ionotropic glutamate receptors are the fundamental means by which neurons control their excitability and neuroplasticity. The N-methyl-D-aspartate receptor (NMDAR) is unique among all ligand-gated channels, requiring two ligands-glutamate and glycine-for activation. These receptors function as heterotetrameric ion channels, with the channel opening dependent on the simultaneous binding of glycine and glutamate to the extracellular ligand-binding domains (LBDs) of the GluN1 and GluN2 subunits, respectively. The exact molecular mechanism for channel gating by the two ligands has been unclear, particularly without structures representing the open channel and apo states. Here we show that the channel gate opening requires tension in the linker connecting the LBD and transmembrane domain (TMD) and rotation of the extracellular domain relative to the TMD. Using electron cryomicroscopy, we captured the structure of the GluN1-GluN2B (GluN1-2B) NMDAR in its open state bound to a positive allosteric modulator. This process rotates and bends the pore-forming helices in GluN1 and GluN2B, altering the symmetry of the TMD channel from pseudofourfold to twofold. Structures of GluN1-2B NMDAR in apo and single-liganded states showed that binding of either glycine or glutamate alone leads to distinct GluN1-2B dimer arrangements but insufficient tension in the LBD-TMD linker for channel opening. This mechanistic framework identifies a key determinant for channel gating and a potential pharmacological strategy for modulating NMDAR activity. | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 9arf.cif.gz | 537.1 KB | Display | PDBx/mmCIF format |
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PDB format | pdb9arf.ent.gz | 422.9 KB | Display | PDB format |
PDBx/mmJSON format | 9arf.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 9arf_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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Full document | 9arf_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 9arf_validation.xml.gz | 91.1 KB | Display | |
Data in CIF | 9arf_validation.cif.gz | 137.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ar/9arf ftp://data.pdbj.org/pub/pdb/validation_reports/ar/9arf | HTTPS FTP |
-Related structure data
Related structure data | 43780MC 9areC 9argC 9arhC 9ariC 9bibC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Glutamate receptor ionotropic, NMDA ... , 2 types, 4 molecules ACBD
#1: Protein | Mass: 95225.883 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Grin1, Nmdar1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P35439 #2: Protein | Mass: 98888.945 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Grin2b / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q00960 |
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-Sugars , 2 types, 4 molecules
#3: Polysaccharide | #5: Sugar | |
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-Non-polymers , 2 types, 4 molecules
#4: Chemical | #6: Chemical | |
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-Details
Has ligand of interest | 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 |
-Sample preparation
Component | Name: Rat GluN1-Glu2B di-heterotetrameric NMDA receptor channel Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Molecular weight | Value: 0.4 MDa / Experimental value: NO |
Source (natural) | Organism: Rattus norvegicus (Norway rat) |
Source (recombinant) | Organism: Spodoptera frugiperda (fall armyworm) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: GOLD / Grid type: UltrAuFoil R1.2/1.3 |
Vitrification | Cryogen name: ETHANE |
-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: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2800 nm / Nominal defocus min: 1400 nm |
Image recording | Electron dose: 66.3 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.13 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 396327 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||
Atomic model building | Protocol: BACKBONE TRACE | |||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 7SAA Accession code: 7SAA / Source name: PDB / Type: experimental model | |||||||||||||||||||||||||||||||||
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