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- PDB-8p3u: Homomeric GluA1 in tandem with TARP gamma-3, desensitized conform... -

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Basic information

Entry
Database: PDB / ID: 8p3u
TitleHomomeric GluA1 in tandem with TARP gamma-3, desensitized conformation 2
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 ammonium ion / axonal spine / COPII-mediated vesicle transport / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / response to sucrose / regulation of monoatomic ion transmembrane transport / cellular response to L-glutamate / myosin V binding ...Cargo concentration in the ER / cellular response to ammonium ion / axonal spine / COPII-mediated vesicle transport / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / response to sucrose / regulation of monoatomic ion transmembrane transport / cellular response to L-glutamate / myosin V binding / LGI-ADAM interactions / neuron spine / positive regulation of AMPA receptor activity / Trafficking of AMPA receptors / proximal dendrite / response to arsenic-containing substance / postsynaptic neurotransmitter receptor diffusion trapping / cellular response to dsRNA / regulation of AMPA receptor activity / channel regulator activity / long-term synaptic depression / ligand-gated calcium channel activity / dendritic spine membrane / beta-2 adrenergic receptor binding / Synaptic adhesion-like molecules / cellular response to peptide hormone stimulus / spinal cord development / cellular response to amine stimulus / response to psychosocial stress / peptide hormone receptor binding / response to morphine / neurotransmitter receptor localization to postsynaptic specialization membrane / Activation of AMPA receptors / behavioral response to pain / perisynaptic space / neuronal cell body membrane / response to lithium ion / Trafficking of GluR2-containing AMPA receptors / protein kinase A binding / AMPA glutamate receptor activity / regulation of receptor recycling / neuronal action potential / response to electrical stimulus / adenylate cyclase binding / transmission of nerve impulse / AMPA glutamate receptor complex / ionotropic glutamate receptor complex / cellular response to glycine / immunoglobulin binding / asymmetric synapse / Unblocking of NMDA receptors, glutamate binding and activation / G-protein alpha-subunit binding / protein targeting / glutamate receptor binding / positive regulation of synaptic transmission / conditioned place preference / long-term memory / response to fungicide / postsynaptic density, intracellular component / voltage-gated calcium channel activity / glutamate-gated receptor activity / positive regulation of synaptic transmission, glutamatergic / cellular response to brain-derived neurotrophic factor stimulus / synapse assembly / glutamate-gated calcium ion channel activity / somatodendritic compartment / presynaptic active zone membrane / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / excitatory synapse / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / cellular response to amino acid stimulus / positive regulation of excitatory postsynaptic potential / response to cocaine / dendritic shaft / synaptic membrane / neuromuscular junction / synaptic transmission, glutamatergic / PDZ domain binding / long-term synaptic potentiation / receptor internalization / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / cerebral cortex development / regulation of synaptic plasticity / response to nutrient levels / response to toxic substance / recycling endosome / cellular response to growth factor stimulus / postsynaptic density membrane / modulation of chemical synaptic transmission / Schaffer collateral - CA1 synapse / response to peptide hormone / small GTPase binding / intracellular protein localization / recycling endosome membrane / cell-cell junction / response to estradiol / synaptic vesicle membrane / synaptic vesicle
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 / Ligand-gated ion channel / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain ...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 / 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 / Up-down Bundle / Mainly Alpha
Similarity search - Domain/homology
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: 3.77 Å
AuthorsZhang, D. / Krieger, J.M. / Greger, I.H.
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 23, 2024Group: Data collection / Structure summary
Category: em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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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


Theoretical massNumber of molelcules
Total (without water)552,3898
Polymers552,3898
Non-polymers00
Water00
1


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

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Components

#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
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: all / 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: 1400 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: 3.77 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 59427 / Symmetry type: POINT

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