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- PDB-8p3w: Homomeric GluA1 in tandem with TARP gamma-3, desensitized conform... -

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Basic information

Entry
Database: PDB / ID: 8p3w
TitleHomomeric GluA1 in tandem with TARP gamma-3, desensitized conformation 4
Components
  • Glutamate receptor 1 flip isoform
  • Voltage-dependent calcium channel gamma-3 subunit
KeywordsMEMBRANE PROTEIN / AMPAR / ion channels / neurotransmission
Function / homology
Function and homology information


Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / positive regulation of locomotion involved in locomotory behavior / cellular response to ammonium ion / response to sucrose / LGI-ADAM interactions / postsynaptic neurotransmitter receptor diffusion trapping ...Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / positive regulation of locomotion involved in locomotory behavior / cellular response to ammonium ion / response to sucrose / LGI-ADAM interactions / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / neuron spine / myosin V binding / Trafficking of AMPA receptors / channel regulator activity / cellular response to L-glutamate / regulation of monoatomic ion transmembrane transport / regulation of AMPA receptor activity / response to arsenic-containing substance / conditioned place preference / cellular response to dsRNA / dendritic spine membrane / Synaptic adhesion-like molecules / long-term synaptic depression / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / response to morphine / neuronal cell body membrane / peptide hormone receptor binding / protein kinase A binding / neurotransmitter receptor localization to postsynaptic specialization membrane / response to psychosocial stress / spinal cord development / Activation of AMPA receptors / perisynaptic space / : / AMPA glutamate receptor activity / transmission of nerve impulse / immunoglobulin binding / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / behavioral response to pain / AMPA glutamate receptor complex / ionotropic glutamate receptor complex / adenylate cyclase binding / excitatory synapse / positive regulation of excitatory postsynaptic potential / asymmetric synapse / regulation of receptor recycling / long-term memory / G-protein alpha-subunit binding / Unblocking of NMDA receptors, glutamate binding and activation / postsynaptic density, intracellular component / glutamate receptor binding / positive regulation of synaptic transmission / protein targeting / voltage-gated calcium channel activity / response to electrical stimulus / neuronal action potential / response to fungicide / glutamate-gated receptor activity / synapse assembly / ionotropic glutamate receptor binding / presynaptic active zone membrane / somatodendritic compartment / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of synaptic transmission, glutamatergic / dendritic shaft / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding / cellular response to amino acid stimulus / response to cocaine / synaptic membrane / response to nutrient levels / modulation of chemical synaptic transmission / : / postsynaptic density membrane / neuromuscular junction / cellular response to growth factor stimulus / recycling endosome / cerebral cortex development / regulation of synaptic plasticity / small GTPase binding / Schaffer collateral - CA1 synapse / receptor internalization / response to peptide hormone / long-term synaptic potentiation / response to toxic substance / recycling endosome membrane / synaptic vesicle membrane / intracellular protein localization / synaptic vesicle / cell-cell junction / G-protein beta-subunit binding / response to estradiol / presynapse
Similarity search - Function
Butyryl-CoA Dehydrogenase, subunit A; domain 3 - #150 / : / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / Butyryl-CoA Dehydrogenase, subunit A; domain 3 / 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 ...Butyryl-CoA Dehydrogenase, subunit A; domain 3 - #150 / : / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / Butyryl-CoA Dehydrogenase, subunit A; domain 3 / 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 / Up-down Bundle / Mainly Alpha
Similarity search - Domain/homology
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate / PALMITIC ACID / Chem-POV / Glutamate receptor 1 / Voltage-dependent calcium channel gamma-3 subunit
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.53 Å
AuthorsZhang, D. / Krieger, J.M. / Yamashita, K. / Greger, I.
Funding support United Kingdom, European Union, 3items
OrganizationGrant numberCountry
Wellcome Trust223194/Z/21/Z United Kingdom
Medical Research Council (MRC, United Kingdom)MC_U105174197 United Kingdom
H2020 Marie Curie Actions of the European Commission101024130European Union
CitationJournal: Nature / Year: 2023
Title: Structural mobility tunes signalling of the GluA1 AMPA glutamate receptor.
Authors: Danyang Zhang / Josip Ivica / James M Krieger / Hinze Ho / Keitaro Yamashita / Imogen Stockwell / Rozbeh Baradaran / Ondrej Cais / Ingo H Greger /
Abstract: AMPA glutamate receptors (AMPARs), the primary mediators of excitatory neurotransmission in the brain, are either GluA2 subunit-containing and thus Ca-impermeable, or GluA2-lacking and Ca-permeable. ...AMPA glutamate receptors (AMPARs), the primary mediators of excitatory neurotransmission in the brain, are either GluA2 subunit-containing and thus Ca-impermeable, or GluA2-lacking and Ca-permeable. Despite their prominent expression throughout interneurons and glia, their role in long-term potentiation and their involvement in a range of neuropathologies, structural information for GluA2-lacking receptors is currently absent. Here we determine and characterize cryo-electron microscopy structures of the GluA1 homotetramer, fully occupied with TARPγ3 auxiliary subunits (GluA1/γ3). The gating core of both resting and open-state GluA1/γ3 closely resembles GluA2-containing receptors. However, the sequence-diverse N-terminal domains (NTDs) give rise to a highly mobile assembly, enabling domain swapping and subunit re-alignments in the ligand-binding domain tier that are pronounced in desensitized states. These transitions underlie the unique kinetic properties of GluA1. A GluA2 mutant (F231A) increasing NTD dynamics phenocopies this behaviour, and exhibits reduced synaptic responses, reflecting the anchoring function of the AMPAR NTD at the synapse. Together, this work underscores how the subunit-diverse NTDs determine subunit arrangement, gating properties and ultimately synaptic signalling efficiency among AMPAR subtypes.
History
DepositionMay 18, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 30, 2023Provider: repository / Type: Initial release
Revision 1.1Sep 13, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.title / _citation.year
Revision 1.2Sep 20, 2023Group: Database references / Category: citation / citation_author
Item: _citation.pdbx_database_id_PubMed / _citation.title ..._citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID / _citation_author.name
Revision 1.3Oct 11, 2023Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.4Oct 16, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Glutamate receptor 1 flip isoform
B: Glutamate receptor 1 flip isoform
C: Glutamate receptor 1 flip isoform
D: Glutamate receptor 1 flip isoform
E: Voltage-dependent calcium channel gamma-3 subunit
F: Voltage-dependent calcium channel gamma-3 subunit
G: Voltage-dependent calcium channel gamma-3 subunit
H: Voltage-dependent calcium channel gamma-3 subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)559,40122
Polymers552,3898
Non-polymers7,01214
Water59433
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area32550 Å2
ΔGint-324 kcal/mol
Surface area97060 Å2
MethodPISA

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Components

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Protein , 2 types, 8 molecules ABCDEFGH

#1: Protein
Glutamate receptor 1 flip isoform / GluR-1 / AMPA-selective glutamate receptor 1 / GluR-A / GluR-K1 / Glutamate receptor ionotropic / ...GluR-1 / AMPA-selective glutamate receptor 1 / GluR-A / GluR-K1 / Glutamate receptor ionotropic / AMPA 1 / GluA1


Mass: 102661.930 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Gria1, Glur1 / Production host: Homo sapiens (human) / References: UniProt: P19490
#2: Protein
Voltage-dependent calcium channel gamma-3 subunit / Neuronal voltage-gated calcium channel gamma-3 subunit / Transmembrane AMPAR regulatory protein ...Neuronal voltage-gated calcium channel gamma-3 subunit / Transmembrane AMPAR regulatory protein gamma-3 / TARP gamma-3


Mass: 35435.332 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Cacng3 / Production host: Homo sapiens (human) / References: UniProt: Q8VHX0

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Non-polymers , 4 types, 47 molecules

#3: Chemical
ChemComp-PLM / PALMITIC ACID


Mass: 256.424 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C16H32O2
#4: Chemical
ChemComp-OLC / (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate / 1-Oleoyl-R-glycerol


Mass: 356.540 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C21H40O4
#5: Chemical
ChemComp-POV / (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate / POPC


Mass: 760.076 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C42H82NO8P / Comment: phospholipid*YM
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 33 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN
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: Homomeric GluA1 AMPA receptor in tandem with TARP gamma 3, plus 1mM quisqualate
Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Source (natural)Organism: Rattus norvegicus (Norway rat)
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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2400 nm / Nominal defocus min: 1200 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.53 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 75478 / Symmetry type: POINT

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