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Open data
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Basic information
Entry | Database: PDB / ID: 5fxh | ||||||
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Title | GluN1b-GluN2B NMDA receptor in non-active-1 conformation | ||||||
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![]() | TRANSPORT PROTEIN / SIGNALING PROTEIN / NMDA RECEPTOR / GLUTAMATE RECEPTOR / GLUN1 / GLUN2B / ION CHANNEL | ||||||
Function / homology | ![]() cellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / pons maturation / positive regulation of Schwann cell migration / regulation of cell communication / regulation of cAMP/PKA signal transduction / sensitization / EPHB-mediated forward signaling ...cellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / pons maturation / positive regulation of Schwann cell migration / regulation of cell communication / regulation of cAMP/PKA signal transduction / sensitization / EPHB-mediated forward signaling / auditory behavior / Assembly and cell surface presentation of NMDA receptors / olfactory learning / conditioned taste aversion / dendritic branch / response to hydrogen sulfide / regulation of respiratory gaseous exchange / response to other organism / positive regulation of inhibitory postsynaptic potential / protein localization to postsynaptic membrane / apical dendrite / regulation of ARF protein signal transduction / response to methylmercury / fear response / response to glycine / propylene metabolic process / response to carbohydrate / cellular response to dsRNA / interleukin-1 receptor binding / negative regulation of dendritic spine maintenance / positive regulation of glutamate secretion / cellular response to lipid / response to growth hormone / Synaptic adhesion-like molecules / regulation of monoatomic cation transmembrane transport / NMDA glutamate receptor activity / RAF/MAP kinase cascade / voltage-gated monoatomic cation channel activity / response to manganese ion / neurotransmitter receptor complex / transmitter-gated monoatomic ion channel activity / 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 / male mating behavior / regulation of dendrite morphogenesis / protein heterotetramerization / regulation of synapse assembly / heterocyclic compound binding / positive regulation of reactive oxygen species biosynthetic process / glycine binding / parallel fiber to Purkinje cell synapse / receptor clustering / positive regulation of calcium ion transport into cytosol / suckling behavior / response to amine / small molecule binding / startle response / social behavior / monoatomic cation transmembrane transport / associative learning / : / behavioral response to pain / response to magnesium ion / regulation of MAPK cascade / regulation of neuronal synaptic plasticity / cellular response to glycine / extracellularly glutamate-gated ion channel activity / regulation of postsynaptic membrane potential / monoatomic cation transport / excitatory synapse / positive regulation of excitatory postsynaptic potential / action potential / monoatomic ion channel complex / positive regulation of dendritic spine maintenance / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / cellular response to manganese ion / behavioral fear response / postsynaptic density, intracellular component / glutamate receptor binding / neuron development / synaptic cleft / prepulse inhibition / multicellular organismal response to stress / detection of mechanical stimulus involved in sensory perception of pain / phosphatase binding / monoatomic cation channel activity / response to electrical stimulus / calcium ion homeostasis / glutamate-gated receptor activity / response to mechanical stimulus / response to fungicide / D2 dopamine receptor binding / presynaptic active zone membrane / cell adhesion molecule binding Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5 Å | ||||||
![]() | Tajima, N. / Karakas, E. / Grant, T. / Simorowski, N. / Diaz-Avalos, R. / Grigorieff, N. / Furukawa, H. | ||||||
![]() | ![]() Title: Activation of NMDA receptors and the mechanism of inhibition by ifenprodil. Authors: Nami Tajima / Erkan Karakas / Timothy Grant / Noriko Simorowski / Ruben Diaz-Avalos / Nikolaus Grigorieff / Hiro Furukawa / ![]() Abstract: The physiology of N-methyl-d-aspartate (NMDA) receptors is fundamental to brain development and function. NMDA receptors are ionotropic glutamate receptors that function as heterotetramers composed ...The physiology of N-methyl-d-aspartate (NMDA) receptors is fundamental to brain development and function. NMDA receptors are ionotropic glutamate receptors that function as heterotetramers composed mainly of GluN1 and GluN2 subunits. Activation of NMDA receptors requires binding of neurotransmitter agonists to a ligand-binding domain (LBD) and structural rearrangement of an amino-terminal domain (ATD). Recent crystal structures of GluN1-GluN2B NMDA receptors bound to agonists and an allosteric inhibitor, ifenprodil, represent the allosterically inhibited state. However, how the ATD and LBD move to activate the NMDA receptor ion channel remains unclear. Here we applied X-ray crystallography, single-particle electron cryomicroscopy and electrophysiology to rat NMDA receptors to show that, in the absence of ifenprodil, the bi-lobed structure of GluN2 ATD adopts an open conformation accompanied by rearrangement of the GluN1-GluN2 ATD heterodimeric interface, altering subunit orientation in the ATD and LBD and forming an active receptor conformation that gates the ion channel. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 427.5 KB | Display | ![]() |
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PDB format | ![]() | 276.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 838.8 KB | Display | ![]() |
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Full document | ![]() | 867.5 KB | Display | |
Data in XML | ![]() | 67.9 KB | Display | |
Data in CIF | ![]() | 109.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3353MC ![]() 3352C ![]() 3354C ![]() 3355C ![]() 3356C ![]() 5b3jC ![]() 5fxgC ![]() 5fxiC ![]() 5fxjC ![]() 5fxkC C: citing same article ( M: map data used to model this data |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 95220.727 Da / Num. of mol.: 2 / Fragment: UNP RESIDUES 23-868 / Mutation: YES Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Protein | Mass: 92931.078 Da / Num. of mol.: 2 / Fragment: UNP RESIDUES 27-852 / Mutation: YES Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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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: NMDA RECEPTOR / Type: COMPLEX |
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Buffer solution | Name: 200 MM NACL, 20 MM HEPES PH 7.0, 10 MM GLYCINE, 10 MM L-GLUTAMATE, 0.002% MNG-3 pH: 7 Details: 200 MM NACL, 20 MM HEPES PH 7.0, 10 MM GLYCINE, 10 MM L-GLUTAMATE, 0.002% MNG-3 |
Specimen | Conc.: 2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: HOLEY CARBON |
Vitrification | Instrument: FEI VITROBOT MARK II / Cryogen name: ETHANE / Details: 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 / Date: Aug 10, 2015 |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 22500 X / Calibrated magnification: 38168 X / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 100 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
Symmetry | Point symmetry: C2 (2 fold cyclic) | ||||||||||||
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3D reconstruction | Resolution: 5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 15000 / Refinement type: HALF-MAPS REFINED AGAINST SAME DATA / Symmetry type: POINT | ||||||||||||
Refinement | Highest resolution: 5 Å | ||||||||||||
Refinement step | Cycle: LAST / Highest resolution: 6.1 Å
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