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