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- PDB-9e4z: GluA2-gamma2 complex bound glutamate and cyclothiazide -

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Basic information

Entry
Database: PDB / ID: 9e4z
TitleGluA2-gamma2 complex bound glutamate and cyclothiazide
Components
  • Isoform Flip of Glutamate receptor 2
  • Voltage-dependent calcium channel gamma-2 subunit
KeywordsTRANSPORT PROTEIN / ligand-gated ion channel / ionotropic glutamate receptor / ampa receptor / ion channel
Function / homology
Function and homology information


Presynaptic depolarization and calcium channel opening / LGI-ADAM interactions / Trafficking of AMPA receptors / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / regulation of AMPA receptor activity / membrane hyperpolarization / nervous system process ...Presynaptic depolarization and calcium channel opening / LGI-ADAM interactions / Trafficking of AMPA receptors / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / regulation of AMPA receptor activity / membrane hyperpolarization / nervous system process / protein targeting to membrane / voltage-gated calcium channel complex / neurotransmitter receptor localization to postsynaptic specialization membrane / spine synapse / dendritic spine neck / neuromuscular junction development / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / transmission of nerve impulse / ligand-gated monoatomic cation channel activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / immunoglobulin binding / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / membrane depolarization / asymmetric synapse / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of synaptic transmission / glutamate receptor binding / regulation of postsynaptic membrane neurotransmitter receptor levels / voltage-gated calcium channel activity / glutamate-gated receptor activity / regulation of synaptic transmission, glutamatergic / response to fungicide / cytoskeletal protein binding / ionotropic glutamate receptor binding / presynaptic active zone membrane / extracellular ligand-gated monoatomic ion channel activity / somatodendritic compartment / glutamate-gated calcium ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / SNARE binding / hippocampal mossy fiber to CA3 synapse / dendritic shaft / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding / protein tetramerization / establishment of protein localization / synaptic membrane / modulation of chemical synaptic transmission / postsynaptic density membrane / terminal bouton / Schaffer collateral - CA1 synapse / cerebral cortex development / receptor internalization / synaptic vesicle membrane / response to calcium ion / synaptic vesicle / presynapse / signaling receptor activity / amyloid-beta binding / presynaptic membrane / growth cone / scaffold protein binding / chemical synaptic transmission / dendritic spine / perikaryon / postsynaptic membrane / neuron projection / postsynaptic density / axon / neuronal cell body / synapse / dendrite / protein-containing complex binding / protein kinase binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / plasma membrane
Similarity search - Function
Voltage-dependent calcium channel, gamma-2 subunit / : / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / 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 ...Voltage-dependent calcium channel, gamma-2 subunit / : / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / 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
CYCLOTHIAZIDE / GLUTAMIC ACID / Voltage-dependent calcium channel gamma-2 subunit / Glutamate receptor 2
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsMontano Romero, A. / Carrillo, E. / Jayaraman, V. / Twomey, E.C.
Funding support United States, 4items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM154904 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM122528 United States
Other privateKinship Foundation 22098168 United States
Other privateDiana Helis Henry Medical Research Foundation 142548 United States
CitationJournal: To Be Published
Title: Memantine Inhibits Calcium-Permeable AMPA Receptors
Authors: Carrillo, E. / Montano Romero, A. / Gonzalez, C.U. / Turcu, A.L. / Chen, S. / Chen, H. / Pan, H. / Vazquez, S. / Twomey, E.C. / Jayarman, V.
History
DepositionOct 25, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 18, 2025Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Additional map / Part number: 2 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Additional map / Part number: 3 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Isoform Flip of Glutamate receptor 2
B: Isoform Flip of Glutamate receptor 2
C: Isoform Flip of Glutamate receptor 2
D: Isoform Flip of Glutamate receptor 2
E: Voltage-dependent calcium channel gamma-2 subunit
F: Voltage-dependent calcium channel gamma-2 subunit
G: Voltage-dependent calcium channel gamma-2 subunit
H: Voltage-dependent calcium channel gamma-2 subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)458,05316
Polymers455,9058
Non-polymers2,1488
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Isoform Flip of Glutamate receptor 2 / GluR-2 / AMPA-selective glutamate receptor 2 / GluR-B / GluR-K2 / Glutamate receptor ionotropic / AMPA 2


Mass: 90967.711 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Gria2, GluA2, Glur2 / Production host: Homo sapiens (human) / References: UniProt: P19491
#2: Protein
Voltage-dependent calcium channel gamma-2 subunit / Neuronal voltage-gated calcium channel gamma-2 subunit / Stargazin / Transmembrane AMPAR regulatory ...Neuronal voltage-gated calcium channel gamma-2 subunit / Stargazin / Transmembrane AMPAR regulatory protein gamma-2 / TARP gamma-2


Mass: 23008.461 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Cacng2, Stg / Production host: Homo sapiens (human) / References: UniProt: O88602
#3: Chemical
ChemComp-GLU / GLUTAMIC ACID


Type: L-peptide linking / Mass: 147.129 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C5H9NO4
#4: Chemical
ChemComp-CYZ / CYCLOTHIAZIDE / 3-BICYCLO[2.2.1]HEPT-5-EN-2-YL-6-CHLORO-3,4- DIHYDRO-2H-1,2,4-BENZOTHIADIAZINE-7-SULFONAMIDE 1,1 DIOXIDE


Mass: 389.878 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C14H16ClN3O4S2 / Feature type: SUBJECT OF INVESTIGATION
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: GluA2-TARPgamma2 Complex bound to glutamate and cyclothiazide
Type: COMPLEX / Entity ID: #2 / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Source (natural)Organism: Rattus norvegicus (Norway rat)
Source (recombinant)Organism: Homo sapiens (human) / Cell: Expi293 Gnti-
Buffer solutionpH: 8
SpecimenConc.: 4 mg/ml / Embedding 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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 40 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 87724 / Symmetry type: POINT
RefinementHighest resolution: 3.7 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.01531840
ELECTRON MICROSCOPYf_angle_d0.69343034
ELECTRON MICROSCOPYf_dihedral_angle_d7.1354292
ELECTRON MICROSCOPYf_chiral_restr0.1274774
ELECTRON MICROSCOPYf_plane_restr0.0085408

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