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- PDB-6whw: GluN1b-GluN2B NMDA receptor in complex with GluN2B antagonist SDZ... -

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Basic information

Entry
Database: PDB / ID: 6whw
TitleGluN1b-GluN2B NMDA receptor in complex with GluN2B antagonist SDZ 220-040, class 1
Components
  • Ionotropic glutamate receptor , NMDA receptor GluN1b
  • Ionotropic glutamate receptor , NMDA receptor GluN2B
KeywordsMEMBRANE PROTEIN / NMDARs / Ligand-gated ion channels / METAL TRANSPORT / Ionotropic glutamate receptor / GluN2B antagonist
Function / homology
Function and homology information


cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / cellular response to curcumin / regulation of cAMP/PKA signal transduction / auditory behavior / pons maturation / EPHB-mediated forward signaling / positive regulation of Schwann cell migration / Assembly and cell surface presentation of NMDA receptors ...cellular response to corticosterone stimulus / cellular response to magnesium starvation / sensory organ development / cellular response to curcumin / regulation of cAMP/PKA signal transduction / auditory behavior / pons maturation / EPHB-mediated forward signaling / positive regulation of Schwann cell migration / Assembly and cell surface presentation of NMDA receptors / regulation of cell communication / response to carbohydrate / fear response / sensitization / suckling behavior / olfactory learning / response to other organism / response to methylmercury / response to hydrogen sulfide / protein localization to postsynaptic membrane / dendritic branch / conditioned taste aversion / regulation of ARF protein signal transduction / apical dendrite / transmitter-gated monoatomic ion channel activity / response to manganese ion / response to glycoside / interleukin-1 receptor binding / cellular response to dsRNA / regulation of respiratory gaseous exchange / cellular response to lipid / propylene metabolic process / response to glycine / response to growth hormone / neuromuscular process / RAF/MAP kinase cascade / positive regulation of inhibitory postsynaptic potential / heterocyclic compound binding / negative regulation of dendritic spine maintenance / neurotransmitter receptor complex / response to amine / Synaptic adhesion-like molecules / NMDA glutamate receptor activity / regulation of monoatomic cation transmembrane transport / NMDA selective glutamate receptor complex / glutamate binding / voltage-gated monoatomic cation channel activity / regulation of axonogenesis / ligand-gated sodium channel activity / response to morphine / positive regulation of glutamate secretion / calcium ion transmembrane import into cytosol / regulation of synapse assembly / male mating behavior / positive regulation of reactive oxygen species biosynthetic process / startle response / protein heterotetramerization / regulation of dendrite morphogenesis / small molecule binding / glycine binding / receptor clustering / behavioral response to pain / parallel fiber to Purkinje cell synapse / positive regulation of calcium ion transport into cytosol / behavioral fear response / social behavior / regulation of neuronal synaptic plasticity / associative learning / regulation of postsynaptic membrane potential / regulation of MAPK cascade / action potential / response to electrical stimulus / extracellularly glutamate-gated ion channel activity / neuron development / cellular response to glycine / multicellular organismal response to stress / positive regulation of dendritic spine maintenance / monoatomic cation transmembrane transport / detection of mechanical stimulus involved in sensory perception of pain / response to magnesium ion / response to mechanical stimulus / Unblocking of NMDA receptors, glutamate binding and activation / monoatomic cation transport / glutamate receptor binding / ligand-gated monoatomic ion channel activity / prepulse inhibition / long-term memory / calcium ion homeostasis / phosphatase binding / adult locomotory behavior / postsynaptic density, intracellular component / synaptic cleft / response to fungicide / monoatomic cation channel activity / cellular response to manganese ion / glutamate-gated receptor activity / regulation of long-term synaptic depression / positive regulation of synaptic transmission, glutamatergic / sensory perception of pain / response to cytokine
Similarity search - Function
Calmodulin-binding domain C0 of NMDA receptor NR1 subunit / Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / 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 ...Calmodulin-binding domain C0 of NMDA receptor NR1 subunit / Glutamate [NMDA] receptor, epsilon subunit, C-terminal / N-methyl D-aspartate receptor 2B3 C-terminus / : / : / 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-QGP / Glutamate receptor ionotropic, NMDA 1 / Glutamate receptor ionotropic, NMDA 2B
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.09 Å
AuthorsChou, T. / Tajima, N. / Furukawa, H.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)NS111745 United States
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)MH085926 United States
CitationJournal: Cell / Year: 2020
Title: Structural Basis of Functional Transitions in Mammalian NMDA Receptors.
Authors: Tsung-Han Chou / Nami Tajima / Annabel Romero-Hernandez / Hiro Furukawa /
Abstract: Excitatory neurotransmission meditated by glutamate receptors including N-methyl-D-aspartate receptors (NMDARs) is pivotal to brain development and function. NMDARs are heterotetramers composed of ...Excitatory neurotransmission meditated by glutamate receptors including N-methyl-D-aspartate receptors (NMDARs) is pivotal to brain development and function. NMDARs are heterotetramers composed of GluN1 and GluN2 subunits, which bind glycine and glutamate, respectively, to activate their ion channels. Despite importance in brain physiology, the precise mechanisms by which activation and inhibition occur via subunit-specific binding of agonists and antagonists remain largely unknown. Here, we show the detailed patterns of conformational changes and inter-subunit and -domain reorientation leading to agonist-gating and subunit-dependent competitive inhibition by providing multiple structures in distinct ligand states at 4 Å or better. The structures reveal that activation and competitive inhibition by both GluN1 and GluN2 antagonists occur by controlling the tension of the linker between the ligand-binding domain and the transmembrane ion channel of the GluN2 subunit. Our results provide detailed mechanistic insights into NMDAR pharmacology, activation, and inhibition, which are fundamental to the brain physiology.
History
DepositionApr 8, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 15, 2020Provider: repository / Type: Initial release
Revision 1.1Jul 29, 2020Group: Data collection / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_conn / struct_site / struct_site_gen
Item: _chem_comp.name / _entity.pdbx_description ..._chem_comp.name / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _struct_conn.pdbx_role
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.2Aug 5, 2020Group: Database references / Structure summary / Category: chem_comp / citation
Item: _chem_comp.pdbx_synonyms / _citation.journal_volume ..._chem_comp.pdbx_synonyms / _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Nov 20, 2024Group: Data collection / Database references / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

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Assembly

Deposited unit
A: Ionotropic glutamate receptor , NMDA receptor GluN1b
B: Ionotropic glutamate receptor , NMDA receptor GluN2B
C: Ionotropic glutamate receptor , NMDA receptor GluN1b
D: Ionotropic glutamate receptor , NMDA receptor GluN2B
hetero molecules


Theoretical massNumber of molelcules
Total (without water)415,1468
Polymers413,8634
Non-polymers1,2834
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Ionotropic glutamate receptor , NMDA receptor GluN1b


Mass: 108085.633 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P35439*PLUS
#2: Protein Ionotropic glutamate receptor , NMDA receptor GluN2B


Mass: 98845.859 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q00960*PLUS
#3: Chemical ChemComp-QGP / (2S)-2-amino-3-[2',4'-dichloro-4-hydroxy-5-(phosphonomethyl)biphenyl-3-yl]propanoic acid


Mass: 420.181 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C16H16Cl2NO6P / Feature type: SUBJECT OF INVESTIGATION
#4: 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.: 2
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
Has ligand of interestY
Has protein modificationY

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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: NMDA receptor GluN1b/2B functional ion channel complex
Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Source (natural)Organism: Rattus norvegicus (Norway rat)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE / Humidity: 85 % / Chamber temperature: 295 K

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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: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 64.5 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

EM softwareName: cisTEM / Version: 1.0.0 / Category: 3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 4.09 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 404527 / Symmetry type: POINT

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