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- EMDB-64354: native NMDA receptor-GluN1/N2B in the closed state -

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Basic information

Entry
Database: EMDB / ID: EMD-64354
Titlenative NMDA receptor-GluN1/N2B in the closed state
Map data
Sample
  • Complex: native NMDA receptor-GluN1/N2B in the closed state
    • Protein or peptide: Glutamate receptor ionotropic, NMDA 1
    • Protein or peptide: Glutamate receptor ionotropic, NMDA 2B
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: GLYCINE
  • Ligand: GLUTAMIC ACID
  • Ligand: (2~{S})-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one
Keywordsnative / NMDA receptor / ionotropic ion channel / excitatory neurotransmitter / MEMBRANE PROTEIN
Function / homology
Function and homology information


Assembly and cell surface presentation of NMDA receptors / Synaptic adhesion-like molecules / EPHB-mediated forward signaling / Unblocking of NMDA receptors, glutamate binding and activation / RAF/MAP kinase cascade / sensory organ development / pons maturation / regulation of cAMP/PKA signal transduction / regulation of cell communication / positive regulation of Schwann cell migration ...Assembly and cell surface presentation of NMDA receptors / Synaptic adhesion-like molecules / EPHB-mediated forward signaling / Unblocking of NMDA receptors, glutamate binding and activation / RAF/MAP kinase cascade / sensory organ development / pons maturation / regulation of cAMP/PKA signal transduction / regulation of cell communication / positive regulation of Schwann cell migration / sensitization / olfactory learning / conditioned taste aversion / dendritic branch / fear response / regulation of respiratory gaseous exchange / apical dendrite / protein localization to postsynaptic membrane / regulation of ARF protein signal transduction / transmitter-gated monoatomic ion channel activity / suckling behavior / positive regulation of inhibitory postsynaptic potential / interleukin-1 receptor binding / propylene metabolic process / response to glycine / negative regulation of dendritic spine maintenance / heterocyclic compound binding / positive regulation of glutamate secretion / regulation of monoatomic cation transmembrane transport / NMDA glutamate receptor activity / NMDA selective glutamate receptor complex / voltage-gated monoatomic cation channel activity / glutamate binding / neurotransmitter receptor complex / ligand-gated sodium channel activity / regulation of axonogenesis / calcium ion transmembrane import into cytosol / neuromuscular process / transport vesicle membrane / response to morphine / regulation of dendrite morphogenesis / protein heterotetramerization / male mating behavior / regulation of synapse assembly / glycine binding / small molecule binding / receptor clustering / startle response / ligand-gated monoatomic ion channel activity / positive regulation of reactive oxygen species biosynthetic process / parallel fiber to Purkinje cell synapse / behavioral response to pain / monoatomic cation transmembrane transport / regulation of MAPK cascade / monoatomic ion channel complex / positive regulation of calcium ion transport into cytosol / regulation of postsynaptic membrane potential / action potential / extracellularly glutamate-gated ion channel activity / associative learning / positive regulation of dendritic spine maintenance / regulation of neuronal synaptic plasticity / monoatomic cation transport / social behavior / glutamate receptor binding / prepulse inhibition / detection of mechanical stimulus involved in sensory perception of pain / long-term memory / positive regulation of synaptic transmission / phosphatase binding / positive regulation of synaptic transmission, glutamatergic / postsynaptic density, intracellular component / behavioral fear response / monoatomic cation channel activity / synaptic cleft / calcium ion homeostasis / glutamate-gated receptor activity / regulation of long-term synaptic depression / D2 dopamine receptor binding / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / cell adhesion molecule binding / dendrite membrane / excitatory synapse / ionotropic glutamate receptor binding / sensory perception of pain / ionotropic glutamate receptor signaling pathway / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / protein serine/threonine kinase binding / regulation of neuron apoptotic process / protein tyrosine kinase binding / sodium ion transmembrane transport / synaptic membrane / positive regulation of excitatory postsynaptic potential / response to amphetamine / hippocampal mossy fiber to CA3 synapse / adult locomotory behavior / learning / synaptic transmission, glutamatergic / excitatory postsynaptic potential
Similarity search - Function
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 / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / 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 / : / : / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / 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
Glutamate receptor ionotropic, NMDA 1 / Glutamate receptor ionotropic, NMDA 2B
Similarity search - Component
Biological speciesMus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.37 Å
AuthorsYu J / Xu RS / Ge JP
Funding support China, 1 items
OrganizationGrant numberCountry
Chinese Academy of Sciences China
CitationJournal: To Be Published
Title: Conformational diversity and fully opening mechanism of native NMDA receptor
Authors: Yu J / Xu RS / Ge JP
History
DepositionApr 23, 2025-
Header (metadata) releaseFeb 18, 2026-
Map releaseFeb 18, 2026-
UpdateFeb 18, 2026-
Current statusFeb 18, 2026Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_64354.png

Downloads & links

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Map

FileDownload / File: emd_64354.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 400 pix.
= 422. Å		1.06 Å/pix.
x 400 pix.
= 422. Å		1.06 Å/pix.
x 400 pix.
= 422. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.055 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.15
Minimum - Maximum-0.18570095 - 2.2545006
Average (Standard dev.)0.0074024615 (±0.029350433)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 421.99997 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : native NMDA receptor-GluN1/N2B in the closed state

EntireName: native NMDA receptor-GluN1/N2B in the closed state
Components
  • Complex: native NMDA receptor-GluN1/N2B in the closed state
    • Protein or peptide: Glutamate receptor ionotropic, NMDA 1
    • Protein or peptide: Glutamate receptor ionotropic, NMDA 2B
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: GLYCINE
  • Ligand: GLUTAMIC ACID
  • Ligand: (2~{S})-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one

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Supramolecule #1: native NMDA receptor-GluN1/N2B in the closed state

SupramoleculeName: native NMDA receptor-GluN1/N2B in the closed state / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Mus musculus (house mouse)

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Macromolecule #1: Glutamate receptor ionotropic, NMDA 1

MacromoleculeName: Glutamate receptor ionotropic, NMDA 1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 92.408602 KDa
SequenceString: PKIVNIGAVL STRKHEQMFR EAVNQANKRH GSWKIQLNAT SVTHKPNAIQ MALSVCEDLI SSQVYAILVS HPPTPNDHFT PTPVSYTAG FYRIPVLGLT TRMSIYSDKS IHLSFLRTVP PYSHQSSVWF EMMRVYNWNH IILLVSDDHE GRAAQKRLET L LEERESKA ...String:
PKIVNIGAVL STRKHEQMFR EAVNQANKRH GSWKIQLNAT SVTHKPNAIQ MALSVCEDLI SSQVYAILVS HPPTPNDHFT PTPVSYTAG FYRIPVLGLT TRMSIYSDKS IHLSFLRTVP PYSHQSSVWF EMMRVYNWNH IILLVSDDHE GRAAQKRLET L LEERESKA EKVLQFDPGT KNVTALLMEA RDLEARVIIL SASEDDAATV YRAAAMLNMT GSGYVWLVGE REISGNALRY AP DGIIGLQ LINGKNESAH ISDAVGVVAQ AVHELLEKEN ITDPPRGCVG NTNIWKTGPL FKRVLMSSKY ADGVTGRVEF NED GDRKFA NYSIMNLQNR KLVQVGIYNG THVIPNDRKI IWPGGETEKP RGYQMSTRLK IVTIHQEPFV YVKPTMSDGT CKEE FTVNG DPVKKVICTG PNDTSPGSPR HTVPQCCYGF CVDLLIKLAR TMNFTYEVHL VADGKFGTQE RVNNSNKKEW NGMMG ELLS GQADMIVAPL TINNERAQYI EFSKPFKYQG LTILVKKEIP RSTLDSFMQP FQSTLWLLVG LSVHVVAVML YLLDRF SPF GRFKVNSEEE EEDALTLSSA MWFSWGVLLN SGIGEGAPRS FSARILGMVW AGFAMIIVAS YTANLAAFLV LDRPEER IT GINDPRLRNP SDKFIYATVK QSSVDIYFRR QVELSTMYRH MEKHNYESAA EAIQAVRDNK LHAFIWDSAV LEFEASQK C DLVTTGELFF RSGFGIGMRK DSPWKQNVSL SILKSHENGF MEDLDKTWVR YQECDSRSNA PATLTFENMA GVFMLVAGG IVAGIFLIFI EIAYKRHKDA R

UniProtKB: Glutamate receptor ionotropic, NMDA 1

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Macromolecule #2: Glutamate receptor ionotropic, NMDA 2B

MacromoleculeName: Glutamate receptor ionotropic, NMDA 2B / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 90.757672 KDa
SequenceString: SIGIAVILVG TSDEVAIKDA HEKDDFHHLS VVPRVELVAM NETDPKSIIT RICDLMSDRK IQGVVLADDT DQEAIAQILD FISAQTLTP ILGIHGGSSM IMADKDESSM FFQFGPSIEQ QASVMLNIME EYDWYIFSIV TTYFPGYQDF VNKIRSTIEN S FVGWELEE ...String:
SIGIAVILVG TSDEVAIKDA HEKDDFHHLS VVPRVELVAM NETDPKSIIT RICDLMSDRK IQGVVLADDT DQEAIAQILD FISAQTLTP ILGIHGGSSM IMADKDESSM FFQFGPSIEQ QASVMLNIME EYDWYIFSIV TTYFPGYQDF VNKIRSTIEN S FVGWELEE VLLLDMSLDD GDSKIQNQLK KLQSPIILLY CTKEEATYIF EVANSVGLTG YGYTWIVPSL VAGDTDTVPS EF PTGLISV SYDEWDYGLP ARVRDGIAII TTAASDMLSE HSFIPEPKSS CYNTHEKRIY QSNMLNRYLI NVTFEGRNLS FSE DGYQMH PKLVIILLNK ERKWERVGKW KDKSLQMKYY VWPRMCPETE EQEDDHLSIV TLEEAPFVIV ESVDPLSGTC MRNT VPCQK RIISENKTDE EPGYIKKCCK GFCIDILKKI SKSVKFTYDL YLVTNGKHGK KINGTWNGMI GEVVMKRAYM AVGSL TINE ERSEVVDFSV PFIETGISVM VSRSNGTVSP SAFLEPFSAD VWVMMFVMLL IVSAVAVFVF EYFSPVGYNR CLADGR EPG GPSFTIGKAI WLLWGLVFNN SVPVQNPKGT TSKIMVSVWA FFAVIFLASY TANLAAFMIQ EEYVDQVSGL SDKKFQR PN DFSPPFRFGT VPNGSTERNI RNNYAEMHAY MGKFNQRGVD DALLSLKTGK LDAFIYDAAV LNYMAGRDEG CKLVTIGS G KVFASTGYGI AIQKDSGWKR QVDLAILQLF GDGEMEELEA LWLTGICHNE KNEVMSSQLD IDNMAGVFYM LGAAMALSL ITFICEHLF

UniProtKB: Glutamate receptor ionotropic, NMDA 2B

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Macromolecule #3: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 3 / Number of copies: 32 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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Macromolecule #4: GLYCINE

MacromoleculeName: GLYCINE / type: ligand / ID: 4 / Number of copies: 2 / Formula: GLY
Molecular weightTheoretical: 75.067 Da
Chemical component information

ChemComp-GLY:
GLYCINE

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Macromolecule #5: GLUTAMIC ACID

MacromoleculeName: GLUTAMIC ACID / type: ligand / ID: 5 / Number of copies: 2 / Formula: GLU
Molecular weightTheoretical: 147.129 Da
Chemical component information

ChemComp-GLU:
GLUTAMIC ACID

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Macromolecule #6: (2~{S})-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one

MacromoleculeName: (2~{S})-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one
type: ligand / ID: 6 / Number of copies: 1 / Formula: JC9
Molecular weightTheoretical: 237.725 Da
Chemical component information

ChemComp-JC9:
(2~{S})-2-(2-chlorophenyl)-2-(methylamino)cyclohexan-1-one / antidepressant*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: NONE
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

9bib

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.37 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 169373
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: MAXIMUM LIKELIHOOD

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