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Yorodumi- PDB-5b3j: Activation of NMDA receptors and the mechanism of inhibition by i... -
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Basic information
| Entry | Database: PDB / ID: 5b3j | |||||||||
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| Title | Activation of NMDA receptors and the mechanism of inhibition by ifenprodil | |||||||||
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Keywords | TRANSPORT PROTEIN / NMDA receptor | |||||||||
| Function / homology | Function and homology informationcellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / regulation of cAMP/PKA signal transduction / EPHB-mediated forward signaling / Assembly and cell surface presentation of NMDA receptors / response to hydrogen sulfide / auditory behavior / sensitization ...cellular response to curcumin / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / regulation of cAMP/PKA signal transduction / EPHB-mediated forward signaling / Assembly and cell surface presentation of NMDA receptors / response to hydrogen sulfide / auditory behavior / sensitization / response to other organism / dendritic branch / fear response / response to methylmercury / apical dendrite / regulation of ARF protein signal transduction / response to manganese ion / response to carbohydrate / suckling behavior / positive regulation of inhibitory postsynaptic potential / interleukin-1 receptor binding / cellular response to dsRNA / cellular response to lipid / response to growth hormone / negative regulation of dendritic spine maintenance / RAF/MAP kinase cascade / response to amine / heterocyclic compound binding / positive regulation of glutamate secretion / Synaptic adhesion-like molecules / regulation of monoatomic cation transmembrane transport / NMDA glutamate receptor activity / response to glycoside / NMDA selective glutamate receptor complex / glutamate binding / ligand-gated sodium channel activity / response to zinc ion / calcium ion transmembrane import into cytosol / protein heterotetramerization / glycine binding / small molecule binding / receptor clustering / startle response / parallel fiber to Purkinje cell synapse / behavioral response to pain / monoatomic cation transmembrane transport / regulation of MAPK cascade / response to magnesium ion / regulation of postsynaptic membrane potential / response to electrical stimulus / action potential / extracellularly glutamate-gated ion channel activity / associative learning / regulation of neuronal synaptic plasticity / Unblocking of NMDA receptors, glutamate binding and activation / monoatomic cation transport / glutamate receptor binding / response to mechanical stimulus / detection of mechanical stimulus involved in sensory perception of pain / long-term memory / neuron development / multicellular organismal response to stress / positive regulation of synaptic transmission, glutamatergic / postsynaptic density, intracellular component / behavioral fear response / response to fungicide / monoatomic cation channel activity / synaptic cleft / glutamate-gated receptor activity / cellular response to manganese ion / regulation of long-term synaptic depression / response to cytokine / D2 dopamine receptor binding / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / cell adhesion molecule binding / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cellular response to forskolin / protein tyrosine kinase binding / synaptic membrane / positive regulation of excitatory postsynaptic potential / sodium ion transmembrane transport / hippocampal mossy fiber to CA3 synapse / response to amphetamine / learning / response to nicotine / response to cocaine / hippocampus development / excitatory postsynaptic potential / regulation of membrane potential / synaptic transmission, glutamatergic / cellular response to amino acid stimulus / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / response to calcium ion / regulation of long-term neuronal synaptic plasticity / beta-catenin binding / regulation of synaptic plasticity / cerebral cortex development Similarity search - Function | |||||||||
| Biological species | ![]() ![]() | |||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.9 Å | |||||||||
Authors | Tajima, N. / Karakas, E. / Grant, T. / Simorowski, N. / Diaz-Avalos, R. / Grigorieff, N. / Furukawa, H. | |||||||||
| Funding support | United States, 2items
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Citation | Journal: Nature / Year: 2016Title: 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
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 5b3j.cif.gz | 414.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb5b3j.ent.gz | 324.2 KB | Display | PDB format |
| PDBx/mmJSON format | 5b3j.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/b3/5b3j ftp://data.pdbj.org/pub/pdb/validation_reports/b3/5b3j | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 3352C ![]() 3353C ![]() 3354C ![]() 3355C ![]() 3356C ![]() 5fxgC ![]() 5fxhC ![]() 5fxiC ![]() 5fxjC ![]() 5fxkC C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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| 4 | ![]()
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| Unit cell |
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Components
-Protein , 2 types, 4 molecules ABCD
| #1: Protein | Mass: 42932.055 Da / Num. of mol.: 2 / Fragment: UNP residues 23-405 / Mutation: N61Q, N371Q Source method: isolated from a genetically manipulated source Source: (gene. exp.) Trichoplusia ni (cabbage looper) / References: UniProt: Q91977, UniProt: A0A1L8F5J9*PLUS#2: Protein | Mass: 41367.902 Da / Num. of mol.: 2 / Fragment: UNP residues 31-394 / Mutation: N348D Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Trichoplusia ni (cabbage looper) / References: UniProt: Q00960 |
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-Antibody , 2 types, 4 molecules EHFL
| #3: Antibody | Mass: 23914.783 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() #4: Antibody | Mass: 23675.170 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) ![]() |
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-Non-polymers , 2 types, 108 molecules 


| #5: Chemical | ChemComp-NA / |
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| #6: Water | ChemComp-HOH / |
-Details
| Has protein modification | Y |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.71 Å3/Da / Density % sol: 54.59 % |
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| Crystal grow | Temperature: 291 K / Method: vapor diffusion, hanging drop / pH: 4.5 Details: 0.1M sodium acetate, 27% PEG3350, 2.2M sodium formate, 0.05 M calcium chloride |
-Data collection
| Diffraction | Mean temperature: 80 K |
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| Diffraction source | Source: SYNCHROTRON / Site: APS / Beamline: 23-ID-D / Wavelength: 1 Å |
| Detector | Type: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Apr 14, 2014 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
| Reflection | Resolution: 2.9→50 Å / Num. obs: 57592 / % possible obs: 91.4 % / Redundancy: 4 % / Rmerge(I) obs: 0.099 / Net I/σ(I): 8.5 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.9→29.93 Å / SU ML: 0.41 / Cross valid method: NONE / σ(F): 1.36 / Phase error: 31.64 / Stereochemistry target values: ML
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 2.9→29.93 Å
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| Refine LS restraints |
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| LS refinement shell |
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X-RAY DIFFRACTION
United States, 2items
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Trichoplusia ni (cabbage looper)