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Open data
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Basic information
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Title | Gly-,Glu-,(S)-DQP-997-74 bound GluN1a-2B-2D NMDAR | |||||||||
![]() | Composite map | |||||||||
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![]() | N-methyl-D-aspartate receptor / (S)-DQP-997-74 / GluN2B / GluN2D / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() glycine-gated cation channel activity / regulation of sensory perception of pain / excitatory chemical synaptic transmission / Activated NTRK2 signals through FYN / Synaptic adhesion-like molecules / cellular response to L-glutamate / response to glycine / propylene metabolic process / negative regulation of dendritic spine maintenance / regulation of monoatomic cation transmembrane transport ...glycine-gated cation channel activity / regulation of sensory perception of pain / excitatory chemical synaptic transmission / Activated NTRK2 signals through FYN / Synaptic adhesion-like molecules / cellular response to L-glutamate / response to glycine / propylene metabolic process / negative regulation of dendritic spine maintenance / regulation of monoatomic cation transmembrane transport / Assembly and cell surface presentation of NMDA receptors / NMDA glutamate receptor activity / voltage-gated monoatomic cation channel activity / Neurexins and neuroligins / neurotransmitter receptor complex / NMDA selective glutamate receptor complex / ligand-gated sodium channel activity / calcium ion transmembrane import into cytosol / glutamate receptor signaling pathway / glutamate binding / protein heterotetramerization / glycine binding / positive regulation of reactive oxygen species biosynthetic process / positive regulation of calcium ion transport into cytosol / Negative regulation of NMDA receptor-mediated neuronal transmission / startle response / Unblocking of NMDA receptors, glutamate binding and activation / monoatomic cation transmembrane transport / regulation of neuronal synaptic plasticity / Long-term potentiation / monoatomic cation transport / excitatory synapse / positive regulation of excitatory postsynaptic potential / monoatomic ion channel complex / synaptic cleft / glutamate-gated receptor activity / calcium ion homeostasis / MECP2 regulates neuronal receptors and channels / presynaptic active zone membrane / glutamate-gated calcium ion channel activity / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / EPHB-mediated forward signaling / sodium ion transmembrane transport / Ras activation upon Ca2+ influx through NMDA receptor / ionotropic glutamate receptor signaling pathway / positive regulation of synaptic transmission, glutamatergic / hippocampal mossy fiber to CA3 synapse / adult locomotory behavior / regulation of membrane potential / excitatory postsynaptic potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / synaptic membrane / postsynaptic density membrane / terminal bouton / brain development / visual learning / calcium ion transmembrane transport / regulation of synaptic plasticity / long-term synaptic potentiation / late endosome / synaptic vesicle / signaling receptor activity / amyloid-beta binding / RAF/MAP kinase cascade / chemical synaptic transmission / dendritic spine / response to ethanol / postsynaptic membrane / cytoskeleton / learning or memory / lysosome / calmodulin binding / neuron projection / postsynaptic density / synapse / dendrite / calcium ion binding / endoplasmic reticulum membrane / protein-containing complex binding / glutamatergic synapse / cell surface / positive regulation of transcription by RNA polymerase II / zinc ion binding / plasma membrane / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.71 Å | |||||||||
![]() | Hyunook K / Hiro F | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for channel gating and blockade in tri-heteromeric GluN1-2B-2D NMDA receptor. Authors: Hyunook Kang / Max Epstein / Tue G Banke / Riley Perszyk / Noriko Simorowski / Srinu Paladugu / Dennis C Liotta / Stephen F Traynelis / Hiro Furukawa / ![]() Abstract: Discrete activation of N-methyl-D-aspartate receptor (NMDAR) subtypes by glutamate and the co-agonist glycine is fundamental to neuroplasticity. A distinct variant, the tri-heteromeric receptor, ...Discrete activation of N-methyl-D-aspartate receptor (NMDAR) subtypes by glutamate and the co-agonist glycine is fundamental to neuroplasticity. A distinct variant, the tri-heteromeric receptor, comprising glycine-binding GluN1 and two types of glutamate-binding GluN2 subunits, exhibits unique pharmacological characteristics, notably enhanced sensitivity to the anti-depressant channel blocker S-(+)-ketamine. Despite its significance, the structural mechanisms underlying ligand gating and channel blockade of tri-heteromeric NMDARs remain poorly understood. Here, we identify and characterize tri-heteromeric GluN1-2B-2D NMDAR in the adult brain, resolving its structures in the activated, inhibited, and S-(+)-ketamine-blocked states. These structures reveal the ligand-dependent conformational dynamics that modulate the tension between the extracellular domain and transmembrane channels, governing channel gating and blockade. Additionally, we demonstrate that the inhibitor (S)-DQP-997-74 selectively decouples linker tension in GluN2D, offering insights into subtype-selective targeting for cognitive modulation. | |||||||||
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Structure visualization
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Downloads & links
-EMDB archive
Map data | ![]() | 229.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 29.2 KB 29.2 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.2 KB | Display | ![]() |
Images | ![]() | 45.5 KB | ||
Filedesc metadata | ![]() | 8.4 KB | ||
Others | ![]() ![]() ![]() | 229.5 MB 230.2 MB 230.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 9d3bMC ![]() 9d37C ![]() 9d38C ![]() 9d39C ![]() 9d3aC ![]() 9d3cC ![]() 46519 ![]() 46520 ![]() 46521 M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Composite map | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.861 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: TMD local refined map
File | emd_46530_additional_1.map | ||||||||||||
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Annotation | TMD local refined map | ||||||||||||
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-Additional map: ECD local refined map
File | emd_46530_additional_2.map | ||||||||||||
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Annotation | ECD local refined map | ||||||||||||
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-Additional map: Consensus map
File | emd_46530_additional_3.map | ||||||||||||
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Annotation | Consensus map | ||||||||||||
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Sample components
-Entire : tri-heteromeric GluN1-2B-2D NMDAR
Entire | Name: tri-heteromeric GluN1-2B-2D NMDAR |
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Components |
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-Supramolecule #1: tri-heteromeric GluN1-2B-2D NMDAR
Supramolecule | Name: tri-heteromeric GluN1-2B-2D NMDAR / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 377 KDa |
-Macromolecule #1: Glutamate receptor ionotropic, NMDA 1
Macromolecule | Name: Glutamate receptor ionotropic, NMDA 1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 92.691828 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DPKIVNIGAV LSTRKHEQMF REAVNQANKR HGSWKIQLNA TSVTHKPNAI QMALSVCEDL ISSQVYAILV SHPPTPNDHF TPTPVSYTA GFYRIPVLGL TTRMSIYSDK SIHLSFLRTV PPYSHQSSVW FEMMRVYSWN HIILLVSDDH EGRAAQKRLE T LLEERESK ...String: DPKIVNIGAV LSTRKHEQMF REAVNQANKR HGSWKIQLNA TSVTHKPNAI QMALSVCEDL ISSQVYAILV SHPPTPNDHF TPTPVSYTA GFYRIPVLGL TTRMSIYSDK SIHLSFLRTV PPYSHQSSVW FEMMRVYSWN HIILLVSDDH EGRAAQKRLE T LLEERESK AEKVLQFDPG TKNVTALLME AKELEARVII LSASEDDAAT VYRAAAMLNM TGSGYVWLVG EREISGNALR YA PDGILGL QLINGKNESA HISDAVGVVA QAVHELLEKE NITDPPRGCV GNTNIWKTGP LFKRVLMSSK YADGVTGRVE FNE DGDRKF ANYSIMNLQN RKLVQVGIYN GTHVIPNDRK IIWPGGETEK PRGYQMSTRL KIVTIHQEPF VYVKPTLSDG TCKE EFTVN GDPVKKVICT GPNDTSPGSP RHTVPQCCYG FCIDLLIKLA RTMNFTYEVH LVADGKFGTQ ERVNNSNKKE WNGMM GELL SGQADMIVAP LTINNERAQY IEFSKPFKYQ GLTILVKKEI PRSTLDSFMQ PFQSTLWLLV GLSVHVVAVM LYLLDR FSP FGRFKVNSEE EEEDALTLSS AMWFSWGVLL NSGIGEGAPR SFSARILGMV WAGFAMIIVA SYTANLAAFL VLDRPEE RI TGINDPRLRN PSDKFIYATV KQSSVDIYFR RQVELSTMYR HMEKHNYESA AEAIQAVRDN KLHAFIWDSA VLEFEASQ K CDLVTTGELF FRSGFGIGMR KDSPWKQNVS LSILKSHENG FMEDLDKTWV RYQECDSRSN APATLTFENM AGVFMLVAG GIVAGIFLIF IEIAYKRHKD ANGAQ UniProtKB: Glutamate receptor ionotropic, NMDA 1 |
-Macromolecule #2: Glutamate receptor ionotropic, NMDA 2B
Macromolecule | Name: Glutamate receptor ionotropic, NMDA 2B / type: protein_or_peptide / ID: 2 Details: Twin-Strep tag (WSHPQFEKGGGSGGGSGGSAWSHPQFEKGALVPRG) C-terminal p2A tag (GSGATNFSLLKQAGDVEENPG) Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 98.622172 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: WSHPQFEKGG GSGGGSGGSA WSHPQFEKGA LVPRGRSQKS PPSIGIAVIL VGTSDEVAIK DAHEKDDFHH LSVVPRVELV AMNETDPKS IITRICDLMS DRKIQGVVFA DDTDQEAIAQ ILDFISAQTL TPILGIHGGS SMIMADKDES SMFFQFGPSI E QQASVMLN ...String: WSHPQFEKGG GSGGGSGGSA WSHPQFEKGA LVPRGRSQKS PPSIGIAVIL VGTSDEVAIK DAHEKDDFHH LSVVPRVELV AMNETDPKS IITRICDLMS DRKIQGVVFA DDTDQEAIAQ ILDFISAQTL TPILGIHGGS SMIMADKDES SMFFQFGPSI E QQASVMLN IMEEYDWYIF SIVTTYFPGY QDFVNKIRST IENSFVGWEL EEVLLLDMSL DDGDSKIQNQ LKKLQSPIIL LY CTKEEAT YIFEVANSVG LTGYGYTWIV PSLVAGDTDT VPAEFPTGLI SVSYDEWDYG LPARVRDGIA IITTAASDML SEH SFIPEP KSSCYNTHEK RIYQSNMLNR YLINVTFEGR NLSFSEDGYQ MHPKLVIILL NKERKWERVG KWKDKSLQMK YYVW PRMCP ETEEQEDDHL SIVTLEEAPF VIVESVDPLS GTCMRNTVPC QKRIVTENKT DEEPGYIKKC CKGFCIDILK KISKS VKFT YDLYLVTNGK HGKKINGTWN GMIGEVVMKR AYMAVGSLTI NEERSEVVDF SVPFIETGIS VMVSRSNGTV SPSAFL EPF SADVWVMMFV MLLIVSAVAV FVFEYFSPVG YNRSLADGRE PGGPSFTIGK AIWLLWGLVF NNSVPVQNPK GTTSKIM VS VWAFFAVIFL ASYTANLAAF MIQEEYVDQV SGLSDKKFQR PNDFSPPFRF GTVPNGSTER NIRNNYAEMH AYMGKFNQ R GVDDALLSLK TGKLDAFIYD AAVLNYMAGR DEGCKLVTIG SGKVFASTGY GIAIQKDSGW KRQVDLAILQ LFGDGEMEE LEALWLTGIC HNEKNEVMSS QLDIDNMAGV FYMLGAAMAL SLITFISEHL FYWQFRHSFM GGPGSGATNF SLLKQAGDVE ENPG UniProtKB: Glutamate receptor ionotropic, NMDA 2B |
-Macromolecule #3: Glutamate receptor ionotropic, NMDA 2D
Macromolecule | Name: Glutamate receptor ionotropic, NMDA 2D / type: protein_or_peptide / ID: 3 / Details: 1D4-tag (TETSQVAPA) / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 94.120609 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: FPEEAPGPGG AGGPGGGLGG ARPLNVALVF SGPAYAAEAA RLGPAVAAAV RSPGLDVRPV ALVLNGSDPR SLVLQLCDLL SGLRVHGVV FEDDSRAPAV APILDFLSAQ TSLPIVAVHG GAALVLTPKE KGSTFLQLGS STEQQLQVIF EVLEEYDWTS F VAVTTRAP ...String: FPEEAPGPGG AGGPGGGLGG ARPLNVALVF SGPAYAAEAA RLGPAVAAAV RSPGLDVRPV ALVLNGSDPR SLVLQLCDLL SGLRVHGVV FEDDSRAPAV APILDFLSAQ TSLPIVAVHG GAALVLTPKE KGSTFLQLGS STEQQLQVIF EVLEEYDWTS F VAVTTRAP GHRAFLSYIE VLTDGSLVGW EHRGALTLDP GAGEAVLSAQ LRSVSAQIRL LFCAREEAEP VFRAAEEAGL TG SGYVWFM VGPQLAGGGG SGAPGEPPLL PGGAPLPAGL FAVRSAGWRD DLARRVAAGV AVVARGAQAL LRDYGFLPEL GHD CRAQNR THRGESLHRY FMNITWDNRD YSFNEDGFLV NPSLVVISLT RDRTWEVVGS WEQQTLRLKY PLWSRYGRFL QPVD DTQHL TVATLEERPF VIVEPADPIS GTCIRDSVPC RSQLNRTHSP PPDAPRPEKR CCKGFCIDIL KRLAHTIGFS YDLYL VTNG KHGKKIDGVW NGMIGEVFYQ RADMAIGSLT INEERSEIVD FSVPFVETGI SVMVARSNGT VSPSAFLEPY SPAVWV MMF VMCLTVVAVT VFIFEYLSPV GYNRSLATGK RPGGSTFTIG KSIWLLWALV FNNSVPVENP RGTTSKIMVL VWAFFAV IF LASYTANLAA FMIQEEYVDT VSGLSDRKFQ RPQEQYPPLK FGTVPNGSTE KNIRSNYPDM HSYMVRYNQP RVEEALTQ L KAGKLDAFIY DAAVLNYMAR KDEGCKLVTI GSGKVFATTG YGIALHKGSR WKRPIDLALL QFLGDDEIEM LERLWLSGI CHNDKIEVMS SKLDIDNMAG VFYMLLVAMG LSLLVFAWEH LVYWRLRHCL GPTETSQVAP A UniProtKB: Glutamate receptor ionotropic, NMDA 2D |
-Macromolecule #5: GLYCINE
Macromolecule | Name: GLYCINE / type: ligand / ID: 5 / Number of copies: 2 / Formula: GLY |
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Molecular weight | Theoretical: 75.067 Da |
Chemical component information | ![]() ChemComp-GLY: |
-Macromolecule #6: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 6 / Number of copies: 3 / Formula: NAG |
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Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Macromolecule #7: GLUTAMIC ACID
Macromolecule | Name: GLUTAMIC ACID / type: ligand / ID: 7 / Number of copies: 2 / Formula: GLU |
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Molecular weight | Theoretical: 147.129 Da |
Chemical component information | ![]() ChemComp-GLU: |
-Macromolecule #8: 4-{(3R,5S)-5-(4-chlorophenyl)-3-[4-(4-chlorophenyl)-2-oxo-1,2-dih...
Macromolecule | Name: 4-{(3R,5S)-5-(4-chlorophenyl)-3-[4-(4-chlorophenyl)-2-oxo-1,2-dihydroquinolin-3-yl]pyrazolidin-1-yl}-3,3-difluoro-4-oxobutanoic acid type: ligand / ID: 8 / Number of copies: 1 / Formula: A1A15 |
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Molecular weight | Theoretical: 572.387 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 2 mg/mL |
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Buffer | pH: 7.5 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 278 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 14 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 61.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.8 µm |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Initial model |
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Refinement | Space: REAL / Protocol: RIGID BODY FIT | ||||||||||
Output model | ![]() PDB-9d3b: |