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Yorodumi- PDB-7sac: S-(+)-ketamine bound GluN1a-GluN2B NMDA receptors at 3.69 Angstro... -
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-Basic information
Entry | Database: PDB / ID: 7sac | |||||||||
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Title | S-(+)-ketamine bound GluN1a-GluN2B NMDA receptors at 3.69 Angstrom resolution | |||||||||
Components | (Glutamate receptor ionotropic, NMDA ...) x 2 | |||||||||
Keywords | TRANSPORT PROTEIN / Ligand-gated ion channel / ionotropic glutamate receptor / synaptic protein / voltage-gate ion channel | |||||||||
Function / homology | Function and homology information 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 / response to hydrogen sulfide / Assembly and cell surface presentation of NMDA receptors / olfactory learning / regulation of protein kinase A signaling / conditioned taste aversion / apical dendrite / regulation of respiratory gaseous exchange / dendritic branch / positive regulation of inhibitory postsynaptic potential / response to other organism / protein localization to postsynaptic membrane / regulation of ARF protein signal transduction / response to methylmercury / fear response / propylene metabolic process / response to glycine / positive regulation of cysteine-type endopeptidase activity / cellular response to dsRNA / response to carbohydrate / negative regulation of dendritic spine maintenance / interleukin-1 receptor binding / voltage-gated monoatomic cation channel activity / cellular response to lipid / regulation of monoatomic cation transmembrane transport / positive regulation of glutamate secretion / response to growth hormone / NMDA glutamate receptor activity / Synaptic adhesion-like molecules / RAF/MAP kinase cascade / parallel fiber to Purkinje cell synapse / NMDA selective glutamate receptor complex / response to manganese ion / NMDA selective glutamate receptor signaling pathway / response to morphine / calcium ion transmembrane import into cytosol / neuromuscular process / glutamate binding / protein heterotetramerization / positive regulation of reactive oxygen species biosynthetic process / regulation of synapse assembly / regulation of axonogenesis / regulation of dendrite morphogenesis / positive regulation of calcium ion transport into cytosol / male mating behavior / glycine binding / heterocyclic compound binding / receptor clustering / suckling behavior / startle response / response to amine / small molecule binding / : / action potential / monoatomic cation transmembrane transport / regulation of neuronal synaptic plasticity / monoatomic cation transport / behavioral response to pain / associative learning / regulation of MAPK cascade / social behavior / response to magnesium ion / cellular response to organic cyclic compound / ligand-gated monoatomic ion channel activity / positive regulation of excitatory postsynaptic potential / extracellularly glutamate-gated ion channel activity / cellular response to glycine / excitatory synapse / positive regulation of dendritic spine maintenance / regulation of postsynaptic membrane potential / Unblocking of NMDA receptors, glutamate binding and activation / phosphatase binding / behavioral fear response / neuron development / postsynaptic density, intracellular component / cellular response to manganese ion / glutamate receptor binding / multicellular organismal response to stress / long-term memory / detection of mechanical stimulus involved in sensory perception of pain / prepulse inhibition / D2 dopamine receptor binding / monoatomic cation channel activity / calcium ion homeostasis / regulation of neuron apoptotic process / response to electrical stimulus / synaptic cleft / response to mechanical stimulus / glutamate-gated receptor activity Similarity search - Function | |||||||||
Biological species | Rattus norvegicus (Norway rat) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.69 Å | |||||||||
Authors | Chou, T.-H. / Furukawa, H. | |||||||||
Funding support | United States, 2items
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Citation | Journal: Nat Struct Mol Biol / Year: 2022 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: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7sac.cif.gz | 547.9 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7sac.ent.gz | 433.6 KB | Display | PDB format |
PDBx/mmJSON format | 7sac.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7sac_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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Full document | 7sac_full_validation.pdf.gz | 1.5 MB | Display | |
Data in XML | 7sac_validation.xml.gz | 85.9 KB | Display | |
Data in CIF | 7sac_validation.cif.gz | 128.8 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/sa/7sac ftp://data.pdbj.org/pub/pdb/validation_reports/sa/7sac | HTTPS FTP |
-Related structure data
Related structure data | 24948MC 7saaC 7sabC 7sadC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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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.) Rattus norvegicus (Norway rat) / Gene: Grin1, Nmdar1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P35439 #2: Protein | Mass: 98888.945 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Grin2b / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q00960 |
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-Sugars , 2 types, 10 molecules
#3: Polysaccharide | Source method: isolated from a genetically manipulated source #4: Sugar | ChemComp-NAG / |
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-Non-polymers , 3 types, 5 molecules
#5: Chemical | #6: Chemical | #7: Chemical | ChemComp-JC9 / ( | |
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-Details
Has ligand of interest | Y |
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Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-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: Rattus norvegicus (Norway rat) |
Source (recombinant) | Organism: Spodoptera frugiperda (fall armyworm) |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 85 % / Chamber temperature: 285 K |
-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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 57.6 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
-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: 3.69 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 434625 / Symmetry type: POINT | ||||||||||||||||||||||||
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