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- PDB-7eu8: Structure of the human GluN1-GluN2B NMDA receptor in complex with... -

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Basic information

Entry
Database: PDB / ID: 7eu8
TitleStructure of the human GluN1-GluN2B NMDA receptor in complex with S-ketamine,glycine and glutamate
Components
  • Glutamate receptor ionotropic, NMDA 1
  • Glutamate receptor ionotropic, NMDA 2B
KeywordsMEMBRANE PROTEIN / NMDA receptor / ketamine / enantiomer / rapid antidepressant / cryo-EM structure
Function / homology
Function and homology information


excitatory chemical synaptic transmission / Activated NTRK2 signals through FYN / Synaptic adhesion-like molecules / propylene metabolic process / response to glycine / positive regulation of cysteine-type endopeptidase activity / negative regulation of dendritic spine maintenance / regulation of monoatomic cation transmembrane transport / glutamate receptor signaling pathway / Assembly and cell surface presentation of NMDA receptors ...excitatory chemical synaptic transmission / Activated NTRK2 signals through FYN / Synaptic adhesion-like molecules / propylene metabolic process / response to glycine / positive regulation of cysteine-type endopeptidase activity / negative regulation of dendritic spine maintenance / regulation of monoatomic cation transmembrane transport / glutamate receptor signaling pathway / Assembly and cell surface presentation of NMDA receptors / NMDA glutamate receptor activity / Neurexins and neuroligins / NMDA selective glutamate receptor complex / glutamate-gated calcium ion channel activity / calcium ion transmembrane import into cytosol / protein heterotetramerization / glutamate binding / positive regulation of reactive oxygen species biosynthetic process / glycine binding / positive regulation of calcium ion transport into cytosol / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / monoatomic cation transmembrane transport / monoatomic cation transport / regulation of neuronal synaptic plasticity / positive regulation of excitatory postsynaptic potential / ligand-gated monoatomic ion channel activity / Long-term potentiation / excitatory synapse / calcium ion homeostasis / synaptic cleft / MECP2 regulates neuronal receptors and channels / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / EPHB-mediated forward signaling / ionotropic glutamate receptor signaling pathway / Ras activation upon Ca2+ influx through NMDA receptor / excitatory postsynaptic potential / positive regulation of synaptic transmission, glutamatergic / synaptic membrane / synaptic transmission, glutamatergic / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / regulation of membrane potential / long-term synaptic potentiation / postsynaptic density membrane / visual learning / regulation of synaptic plasticity / brain development / terminal bouton / late endosome / synaptic vesicle / signaling receptor activity / amyloid-beta binding / RAF/MAP kinase cascade / chemical synaptic transmission / postsynaptic membrane / response to ethanol / dendritic spine / postsynaptic density / learning or memory / lysosome / cytoskeleton / calmodulin binding / neuron projection / synapse / calcium ion binding / dendrite / protein-containing complex binding / endoplasmic reticulum membrane / cell surface / positive regulation of transcription by RNA polymerase II / zinc ion binding / plasma membrane / cytoplasm
Similarity search - Function
Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / Bacterial extracellular solute-binding proteins, family 3 / Solute-binding protein family 3/N-terminal domain of MltF / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / : / Ligand-gated ion channel ...Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / Bacterial extracellular solute-binding proteins, family 3 / Solute-binding protein family 3/N-terminal domain of MltF / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / : / Ligand-gated ion channel / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like I
Similarity search - Domain/homology
Chem-JC9 / Glutamate receptor ionotropic, NMDA 1 / Glutamate receptor ionotropic, NMDA 2B
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.07 Å
AuthorsZhang, T. / Zhang, Y. / Zhu, S.
Funding support China, 9items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)31771115 China
Chinese Academy of SciencesXDBS01020000 China
National Natural Science Foundation of China (NSFC)81625022 China
National Natural Science Foundation of China (NSFC)91853205 China
National Natural Science Foundation of China (NSFC)81821005 China
National Key R&D Program of China2017YFA0505700 China
Shanghai Municipal Health Commission in China18431907100 China
Shanghai Municipal Health Commission in China19XD1404700 China
Shanghai Municipal Science and Technology Major Project2018SHZDZX05 China
CitationJournal: Nature / Year: 2021
Title: Structural basis of ketamine action on human NMDA receptors.
Authors: Youyi Zhang / Fei Ye / Tongtong Zhang / Shiyun Lv / Liping Zhou / Daohai Du / He Lin / Fei Guo / Cheng Luo / Shujia Zhu /
Abstract: Ketamine is a non-competitive channel blocker of N-methyl-D-aspartate (NMDA) receptors. A single sub-anaesthetic dose of ketamine produces rapid (within hours) and long-lasting antidepressant effects ...Ketamine is a non-competitive channel blocker of N-methyl-D-aspartate (NMDA) receptors. A single sub-anaesthetic dose of ketamine produces rapid (within hours) and long-lasting antidepressant effects in patients who are resistant to other antidepressants. Ketamine is a racemic mixture of S- and R-ketamine enantiomers, with S-ketamine isomer being the more active antidepressant. Here we describe the cryo-electron microscope structures of human GluN1-GluN2A and GluN1-GluN2B NMDA receptors in complex with S-ketamine, glycine and glutamate. Both electron density maps uncovered the binding pocket for S-ketamine in the central vestibule between the channel gate and selectivity filter. Molecular dynamics simulation showed that S-ketamine moves between two distinct locations within the binding pocket. Two amino acids-leucine 642 on GluN2A (homologous to leucine 643 on GluN2B) and asparagine 616 on GluN1-were identified as key residues that form hydrophobic and hydrogen-bond interactions with ketamine, and mutations at these residues reduced the potency of ketamine in blocking NMDA receptor channel activity. These findings show structurally how ketamine binds to and acts on human NMDA receptors, and pave the way for the future development of ketamine-based antidepressants.
History
DepositionMay 16, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 28, 2021Provider: repository / Type: Initial release
Revision 1.1Aug 4, 2021Group: Author supporting evidence / Database references / Structure summary
Category: audit_author / citation_author / pdbx_audit_support
Item: _audit_author.name / _citation_author.name
Revision 1.2Sep 22, 2021Group: Database references / Structure summary
Category: audit_author / citation ...audit_author / citation / citation_author / database_2
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.3Oct 26, 2022Group: Structure summary / Category: chem_comp / Item: _chem_comp.pdbx_synonyms

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Structure visualization

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Assembly

Deposited unit
A: Glutamate receptor ionotropic, NMDA 1
B: Glutamate receptor ionotropic, NMDA 2B
C: Glutamate receptor ionotropic, NMDA 1
D: Glutamate receptor ionotropic, NMDA 2B
hetero molecules


Theoretical massNumber of molelcules
Total (without water)385,40912
Polymers383,6234
Non-polymers1,7868
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area18760 Å2
ΔGint-170 kcal/mol
Surface area141160 Å2

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Components

#1: Protein Glutamate receptor ionotropic, NMDA 1 / GluN1 / Glutamate [NMDA] receptor subunit zeta-1 / N-methyl-D-aspartate receptor subunit NR1 / NMD-R1


Mass: 95236.078 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GRIN1, NMDAR1 / Cell line (production host): HEK293F / Production host: Homo sapiens (human) / References: UniProt: Q05586
#2: Protein Glutamate receptor ionotropic, NMDA 2B


Mass: 96575.508 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GRIN2B / Production host: Homo sapiens (human) / References: UniProt: Q13224
#3: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 7
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#4: Chemical ChemComp-JC9 / (2~{S})-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one / Esketamine


Mass: 237.725 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C13H16ClNO / Feature type: SUBJECT OF INVESTIGATION / Comment: antidepressant*YM
Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: tetrameric complex of GluN1 and GluN2B subunits / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Molecular weightValue: 383.22 kDa/nm / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 4.07 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 159306 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL

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