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- PDB-7saa: Glycine and glutamate bound GluN1a-GluN2B NMDA receptors in non-a... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7saa | |||||||||
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Title | Glycine and glutamate bound GluN1a-GluN2B NMDA receptors in non-active 1 conformation at 2.97 Angstrom resolution | |||||||||
![]() | (Glutamate receptor ionotropic, NMDA ...) x 2 | |||||||||
![]() | TRANSPORT PROTEIN / Ligand-gated ion channel / ionotropic glutamate receptor / synaptic protein / voltage-gate ion channel | |||||||||
Function / homology | ![]() 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 / Assembly and cell surface presentation of NMDA receptors / response to hydrogen sulfide / olfactory learning / regulation of protein kinase A signaling / conditioned taste aversion / dendritic branch / regulation of respiratory gaseous exchange / protein localization to postsynaptic membrane / response to other organism / positive regulation of inhibitory postsynaptic potential / apical dendrite / propylene metabolic process / response to glycine / regulation of ARF protein signal transduction / fear response / response to methylmercury / voltage-gated monoatomic cation channel activity / positive regulation of cysteine-type endopeptidase activity / cellular response to dsRNA / response to carbohydrate / negative regulation of dendritic spine maintenance / regulation of monoatomic cation transmembrane transport / interleukin-1 receptor binding / cellular response to lipid / response to morphine / NMDA glutamate receptor activity / positive regulation of glutamate secretion / response to growth hormone / Synaptic adhesion-like molecules / NMDA selective glutamate receptor complex / RAF/MAP kinase cascade / glutamate-gated calcium ion channel activity / parallel fiber to Purkinje cell synapse / response to manganese ion / NMDA selective glutamate receptor signaling pathway / calcium ion transmembrane import into cytosol / protein heterotetramerization / glutamate binding / neuromuscular process / positive regulation of reactive oxygen species biosynthetic process / regulation of synapse assembly / action potential / glycine binding / positive regulation of calcium ion transport into cytosol / regulation of dendrite morphogenesis / regulation of axonogenesis / male mating behavior / heterocyclic compound binding / suckling behavior / startle response / behavioral response to pain / response to amine / monoatomic cation transmembrane transport / receptor clustering / monoatomic cation transport / regulation of neuronal synaptic plasticity / associative learning / positive regulation of excitatory postsynaptic potential / social behavior / regulation of MAPK cascade / response to magnesium ion / ligand-gated monoatomic ion channel activity / cellular response to organic cyclic compound / extracellularly glutamate-gated ion channel activity / cellular response to glycine / excitatory synapse / positive regulation of dendritic spine maintenance / neuron development / Unblocking of NMDA receptors, glutamate binding and activation / behavioral fear response / phosphatase binding / regulation of postsynaptic membrane potential / small molecule binding / postsynaptic density, intracellular component / cellular response to manganese ion / calcium ion homeostasis / glutamate receptor binding / D2 dopamine receptor binding / prepulse inhibition / multicellular organismal response to stress / monoatomic cation channel activity / long-term memory / detection of mechanical stimulus involved in sensory perception of pain / regulation of neuron apoptotic process / response to electrical stimulus / synaptic cleft / glutamate-gated receptor activity / presynaptic active zone membrane Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.97 Å | |||||||||
![]() | Chou, T.-H. / Furukawa, H. | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural insights into binding of therapeutic channel blockers in NMDA receptors. Authors: Tsung-Han Chou / Max Epstein / Kevin Michalski / Eve Fine / Philip C Biggin / Hiro Furukawa / ![]() ![]() Abstract: Excitatory signaling mediated by N-methyl-D-aspartate receptor (NMDAR) is critical for brain development and function, as well as for neurological diseases and disorders. Channel blockers of NMDARs ...Excitatory signaling mediated by N-methyl-D-aspartate receptor (NMDAR) is critical for brain development and function, as well as for neurological diseases and disorders. Channel blockers of NMDARs are of medical interest owing to their potential for treating depression, Alzheimer's disease, and epilepsy. However, precise mechanisms underlying binding and channel blockade have remained limited owing to challenges in obtaining high-resolution structures at the binding site within the transmembrane domains. Here, we monitor the binding of three clinically important channel blockers: phencyclidine, ketamine, and memantine in GluN1-2B NMDARs at local resolutions of 2.5-3.5 Å around the binding site using single-particle electron cryo-microscopy, molecular dynamics simulations, and electrophysiology. The channel blockers form different extents of interactions with the pore-lining residues, which control mostly off-speeds but not on-speeds. Our comparative analyses of the three unique NMDAR channel blockers provide a blueprint for developing therapeutic compounds with minimal side effects. | |||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 540 KB | Display | ![]() |
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PDB format | ![]() | 435 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.2 MB | Display | ![]() |
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Full document | ![]() | 1.2 MB | Display | |
Data in XML | ![]() | 86.3 KB | Display | |
Data in CIF | ![]() | 129.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 24946MC ![]() 7sabC ![]() 7sacC ![]() 7sadC 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
-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.) ![]() ![]() ![]() ![]() #2: Protein | Mass: 98888.945 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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-Sugars , 2 types, 11 molecules ![](data/chem/img/NAG.gif)
#3: Polysaccharide | Source method: isolated from a genetically manipulated source #4: Sugar | ChemComp-NAG / |
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-Non-polymers , 2 types, 4 molecules ![](data/chem/img/GLY.gif)
![](data/chem/img/GLU.gif)
![](data/chem/img/GLU.gif)
#5: 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 |
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Sample preparation
Component | Name: Hetero-tetrameric GluN1a-GluN2B NMDA receptors / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() ![]() |
Source (recombinant) | Organism: ![]() ![]() |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 4 mg/ml / 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 | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 85 % / Chamber temperature: 285 K |
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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: BRIGHT FIELD |
Image recording | Electron dose: 57.6 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.19.1_4122: / Classification: refinement | ||||||||||||||||||||||||
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EM software | Name: cisTEM / Version: 1.0.2 / Category: 3D reconstruction | ||||||||||||||||||||||||
CTF correction | Type: NONE | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.97 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 378892 / Symmetry type: POINT | ||||||||||||||||||||||||
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