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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 informationtrigeminal motor nucleus development / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / sensitization / cellular response to curcumin / auditory behavior / regulation of cAMP/PKA signal transduction / fear response / response to carbohydrate ...trigeminal motor nucleus development / cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / sensitization / cellular response to curcumin / auditory behavior / regulation of cAMP/PKA signal transduction / fear response / response to carbohydrate / EPHB-mediated forward signaling / Assembly and cell surface presentation of NMDA receptors / suckling behavior / response to hydrogen sulfide / response to other organism / response to methylmercury / dendritic branch / regulation of ARF protein signal transduction / ciliary transition zone / response to manganese ion / response to glycoside / apical dendrite / interleukin-1 receptor binding / cellular response to dsRNA / cellular response to lipid / response to growth hormone / positive regulation of inhibitory postsynaptic potential / heterocyclic compound binding / RAF/MAP kinase cascade / negative regulation of dendritic spine maintenance / response to amine / Synaptic adhesion-like molecules / response to zinc ion / NMDA glutamate receptor activity / regulation of monoatomic cation transmembrane transport / NMDA selective glutamate receptor complex / glutamate binding / behavioral fear response / ligand-gated sodium channel activity / startle response / positive regulation of glutamate secretion / calcium ion transmembrane import into cytosol / protein heterotetramerization / small molecule binding / receptor clustering / behavioral response to pain / glycine binding / parallel fiber to Purkinje cell synapse / ligand-gated monoatomic ion channel activity / associative learning / regulation of neuronal synaptic plasticity / regulation of postsynaptic membrane potential / regulation of MAPK cascade / response to electrical stimulus / extracellularly glutamate-gated ion channel activity / multicellular organismal response to stress / action potential / monoatomic cation transmembrane transport / detection of mechanical stimulus involved in sensory perception of pain / response to magnesium ion / ciliary tip / Unblocking of NMDA receptors, glutamate binding and activation / response to mechanical stimulus / glutamate receptor binding / monoatomic cation transport / long-term memory / regulation of long-term neuronal synaptic plasticity / postsynaptic density, intracellular component / response to fungicide / monoatomic cation channel activity / cellular response to manganese ion / response to cytokine / regulation of long-term synaptic depression / positive regulation of synaptic transmission, glutamatergic / response to amphetamine / in utero embryonic development / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / cell adhesion molecule binding / D2 dopamine receptor binding / synaptic cleft / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / learning / protein tyrosine kinase binding / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cellular response to amino acid stimulus / hippocampus development / excitatory postsynaptic potential / cellular response to forskolin / hippocampal mossy fiber to CA3 synapse / positive regulation of excitatory postsynaptic potential / response to cocaine / protein serine/threonine kinase binding / response to nicotine / synaptic membrane / sodium ion transmembrane transport / synaptic transmission, glutamatergic / long-term synaptic potentiation / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential 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)