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- EMDB-15718: Open state GluA1/A2 AMPA receptor in complex with TARP gamma 8 an... -

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Basic information

Entry
Database: EMDB / ID: EMD-15718
TitleOpen state GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand JNJ-61432059
Map data
Sample
  • Complex: GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand JNJ-61432059
    • Protein or peptide: Isoform Flip of Glutamate receptor 1
    • Protein or peptide: Isoform Flip of Glutamate receptor 2
    • Protein or peptide: Voltage-dependent calcium channel gamma-8 subunit
  • Ligand: GLUTAMIC ACID
  • Ligand: CYCLOTHIAZIDE
  • Ligand: (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
  • Ligand: PALMITIC ACID
  • Ligand: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
  • Ligand: 5-[2-(4-fluorophenyl)-7-(4-oxidanylpiperidin-1-yl)pyrazolo[1,5-c]pyrimidin-3-yl]-1,3-dihydroindol-2-one
Function / homology
Function and homology information


Phase 2 - plateau phase / Phase 0 - rapid depolarisation / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / chemical synaptic transmission, postsynaptic / cellular response to ammonium ion / neurotransmitter receptor transport, postsynaptic endosome to lysosome ...Phase 2 - plateau phase / Phase 0 - rapid depolarisation / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / chemical synaptic transmission, postsynaptic / cellular response to ammonium ion / neurotransmitter receptor transport, postsynaptic endosome to lysosome / L-type voltage-gated calcium channel complex / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / LGI-ADAM interactions / neuron spine / myosin V binding / Trafficking of AMPA receptors / regulation of AMPA receptor activity / neurotransmitter receptor internalization / channel regulator activity / protein phosphatase 2B binding / dendritic spine membrane / postsynaptic neurotransmitter receptor diffusion trapping / response to arsenic-containing substance / cellular response to dsRNA / Synaptic adhesion-like molecules / long-term synaptic depression / beta-2 adrenergic receptor binding / protein kinase A binding / cellular response to peptide hormone stimulus / neuronal cell body membrane / spine synapse / spinal cord development / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / response to lithium ion / perisynaptic space / cellular response to glycine / transmission of nerve impulse / AMPA glutamate receptor activity / regulation of postsynaptic membrane neurotransmitter receptor levels / Trafficking of GluR2-containing AMPA receptors / immunoglobulin binding / calcium channel regulator activity / AMPA glutamate receptor complex / neuronal action potential / kainate selective glutamate receptor activity / excitatory synapse / ionotropic glutamate receptor complex / extracellularly glutamate-gated ion channel activity / adenylate cyclase binding / cellular response to organic cyclic compound / asymmetric synapse / G-protein alpha-subunit binding / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / voltage-gated calcium channel activity / glutamate receptor binding / regulation of postsynaptic membrane potential / positive regulation of synaptic transmission / response to electrical stimulus / glutamate-gated receptor activity / presynaptic active zone membrane / response to fungicide / regulation of synaptic transmission, glutamatergic / cellular response to brain-derived neurotrophic factor stimulus / somatodendritic compartment / synapse assembly / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / cytoskeletal protein binding / monoatomic ion transmembrane transport / positive regulation of synaptic transmission, glutamatergic / SNARE binding / dendritic shaft / response to cocaine / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic membrane / synaptic transmission, glutamatergic / PDZ domain binding / cellular response to amino acid stimulus / postsynaptic density membrane / protein tetramerization / regulation of synaptic plasticity / modulation of chemical synaptic transmission / neuromuscular junction / Schaffer collateral - CA1 synapse / establishment of protein localization / terminal bouton / receptor internalization / synaptic vesicle membrane / response to organic cyclic compound / cerebral cortex development / response to peptide hormone / response to toxic substance / cellular response to growth factor stimulus
Similarity search - Function
Voltage-dependent calcium channel, gamma-8 subunit / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / Bacterial extracellular solute-binding proteins, family 3 / Solute-binding protein family 3/N-terminal domain of MltF / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / : / Ligand-gated ion channel ...Voltage-dependent calcium channel, gamma-8 subunit / PMP-22/EMP/MP20/Claudin family / Voltage-dependent calcium channel, gamma subunit / PMP-22/EMP/MP20/Claudin superfamily / Bacterial extracellular solute-binding proteins, family 3 / Solute-binding protein family 3/N-terminal domain of MltF / 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
Similarity search - Domain/homology
Glutamate receptor 1 / Glutamate receptor 2 / Voltage-dependent calcium channel gamma-8 subunit
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsZhang D / Lape R / Shaikh S / Kohegyi B / Watson JF / Cais O / Nakagawa T / Greger IH
Funding support United Kingdom, United States, 3 items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MRU105174197 United Kingdom
Wellcome Trust223194/Z/21/Z United Kingdom
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)R56/R01MH123474 United States
CitationJournal: Nat Commun / Year: 2023
Title: Modulatory mechanisms of TARP γ8-selective AMPA receptor therapeutics.
Authors: Danyang Zhang / Remigijus Lape / Saher A Shaikh / Bianka K Kohegyi / Jake F Watson / Ondrej Cais / Terunaga Nakagawa / Ingo H Greger /
Abstract: AMPA glutamate receptors (AMPARs) mediate excitatory neurotransmission throughout the brain. Their signalling is uniquely diversified by brain region-specific auxiliary subunits, providing an ...AMPA glutamate receptors (AMPARs) mediate excitatory neurotransmission throughout the brain. Their signalling is uniquely diversified by brain region-specific auxiliary subunits, providing an opportunity for the development of selective therapeutics. AMPARs associated with TARP γ8 are enriched in the hippocampus, and are targets of emerging anti-epileptic drugs. To understand their therapeutic activity, we determined cryo-EM structures of the GluA1/2-γ8 receptor associated with three potent, chemically diverse ligands. We find that despite sharing a lipid-exposed and water-accessible binding pocket, drug action is differentially affected by binding-site mutants. Together with patch-clamp recordings and MD simulations we also demonstrate that ligand-triggered reorganisation of the AMPAR-TARP interface contributes to modulation. Unexpectedly, one ligand (JNJ-61432059) acts bifunctionally, negatively affecting GluA1 but exerting positive modulatory action on GluA2-containing AMPARs, in a TARP stoichiometry-dependent manner. These results further illuminate the action of TARPs, demonstrate the sensitive balance between positive and negative modulatory action, and provide a mechanistic platform for development of both positive and negative selective AMPAR modulators.
History
DepositionSep 2, 2022-
Header (metadata) releaseApr 19, 2023-
Map releaseApr 19, 2023-
UpdateMay 24, 2023-
Current statusMay 24, 2023Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

Downloads & links

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Map

FileDownload / File: emd_15718.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

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AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 320 pix.
= 342.4 Å
1.07 Å/pix.
x 320 pix.
= 342.4 Å
1.07 Å/pix.
x 320 pix.
= 342.4 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.07 Å
Density
Contour LevelBy AUTHOR: 0.023
Minimum - Maximum-0.08334833 - 0.14874756
Average (Standard dev.)0.00017177007 (±0.0024544445)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 342.40002 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: #1

Fileemd_15718_additional_1.map
Projections & Slices
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Half map: #1

Fileemd_15718_half_map_1.map
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Half map: #2

Fileemd_15718_half_map_2.map
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Sample components

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Entire : GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand JN...

EntireName: GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand JNJ-61432059
Components
  • Complex: GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand JNJ-61432059
    • Protein or peptide: Isoform Flip of Glutamate receptor 1
    • Protein or peptide: Isoform Flip of Glutamate receptor 2
    • Protein or peptide: Voltage-dependent calcium channel gamma-8 subunit
  • Ligand: GLUTAMIC ACID
  • Ligand: CYCLOTHIAZIDE
  • Ligand: (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
  • Ligand: PALMITIC ACID
  • Ligand: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
  • Ligand: 5-[2-(4-fluorophenyl)-7-(4-oxidanylpiperidin-1-yl)pyrazolo[1,5-c]pyrimidin-3-yl]-1,3-dihydroindol-2-one

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Supramolecule #1: GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand JN...

SupramoleculeName: GluA1/A2 AMPA receptor in complex with TARP gamma 8 and ligand JNJ-61432059
type: complex / ID: 1 / Chimera: Yes / Parent: 0 / Macromolecule list: #1-#3
Source (natural)Organism: Rattus norvegicus (Norway rat)

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Macromolecule #1: Isoform Flip of Glutamate receptor 1

MacromoleculeName: Isoform Flip of Glutamate receptor 1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Rattus norvegicus (Norway rat)
Molecular weightTheoretical: 102.66193 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MPYIFAFFCT GFLGAVVGAD YKDDDDKNFP NNIQIGGLFP NQQSQEHAAF RFALSQLTEP PKLLPQIDIV NISDSFEMTY RFCSQFSKG VYAIFGFYER RTVNMLTSFC GALHVCFITP SFPVDTSNQF VLQLRPELQE ALISIIDHYK WQTFVYIYDA D RGLSVLQR ...String:
MPYIFAFFCT GFLGAVVGAD YKDDDDKNFP NNIQIGGLFP NQQSQEHAAF RFALSQLTEP PKLLPQIDIV NISDSFEMTY RFCSQFSKG VYAIFGFYER RTVNMLTSFC GALHVCFITP SFPVDTSNQF VLQLRPELQE ALISIIDHYK WQTFVYIYDA D RGLSVLQR VLDTAAEKNW QVTAVNILTT TEEGYRMLFQ DLEKKKERLV VVDCESERLN AILGQIVKLE KNGIGYHYIL AN LGFMDID LNKFKESGAN VTGFQLVNYT DTIPARIMQQ WRTSDSRDHT RVDWKRPKYT SALTYDGVKV MAEAFQSLRR QRI DISRRG NAGDCLANPA VPWGQGIDIQ RALQQVRFEG LTGNVQFNEK GRRTNYTLHV IEMKHDGIRK IGYWNEDDKF VPAA TDAQA GGDNSSVQNR TYIVTTILED PYVMLKKNAN QFEGNDRYEG YCVELAAEIA KHVGYSYRLE IVSDGKYGAR DPDTK AWNG MVGELVYGRA DVAVAPLTIT LVREEVIDFS KPFMSLGISI MIKKPQKSKP GVFSFLDPLA YEIWMCIVFA YIGVSV VLF LVSRFSPYEW HSEEFEEGRD QTTSDQSNEF GIFNSLWFSL GAFMQQGCDI SPRSLSGRIV GGVWWFFTLI IISSYTA NL AAFLTVERMV SPIESAEDLA KQTEIAYGTL EAGSTKEFFR RSKIAVFEKM WTYMKSAEPS VFVRTTEEGM IRVRKSKG K YAYLLESTMN EYIEQRKPCD TMKVGGNLDS KGYGIATPKG SALRGPVNLA VLKLSEQGVL DKLKSKWWYD KGECGSKDS GSKDKTSALS LSNVAGVFYI LIGGLGLAML VALIEFCYKS RSESKRMKGF CLIPQQSINE AIRTSTLPRN SGAGASGGGG SGENGRVVS QDFPKSMQSI PCMSHSSGMP LGATGL

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Macromolecule #2: Isoform Flip of Glutamate receptor 2

MacromoleculeName: Isoform Flip of Glutamate receptor 2 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Rattus norvegicus (Norway rat)
Molecular weightTheoretical: 96.247055 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MQKIMHISVL LSPVLWGLIF GVSSNSIQIG GLFPRGADQE YSAFRVGMVQ FSTSEFRLTP HIDNLEVANS FAVTNAFCSQ FSRGVYAIF GFYDKKSVNT ITSFCGTLHV SFITPSFPTD GTHPFVIQMR PDLKGALLSL IEYYQWDKFA YLYDSDRGLS T LQAVLDSA ...String:
MQKIMHISVL LSPVLWGLIF GVSSNSIQIG GLFPRGADQE YSAFRVGMVQ FSTSEFRLTP HIDNLEVANS FAVTNAFCSQ FSRGVYAIF GFYDKKSVNT ITSFCGTLHV SFITPSFPTD GTHPFVIQMR PDLKGALLSL IEYYQWDKFA YLYDSDRGLS T LQAVLDSA AEKKWQVTAI NVGNINNDKK DETYRSLFQD LELKKERRVI LDCERDKVND IVDQVITIGK HVKGYHYIIA NL GFTDGDL LKIQFGGANV SGFQIVDYDD SLVSKFIERW STLEEKEYPG AHTATIKYTS ALTYDAVQVM TEAFRNLRKQ RIE ISRRGN AGDCLANPAV PWGQGVEIER ALKQVQVEGL SGNIKFDQNG KRINYTINIM ELKTNGPRKI GYWSEVDKMV VTLT ELPSG NDTSGLENKT VVVTTILESP YVMMKKNHEM LEGNERYEGY CVDLAAEIAK HCGFKYKLTI VGDGKYGARD ADTKI WNGM VGELVYGKAD IAIAPLTITL VREEVIDFSK PFMSLGISIM IKKPQKSKPG VFSFLDPLAY EIWMCIVFAY IGVSVV LFL VSRFSPYEWH TEEFEDGRET QSSESTNEFG IFNSLWFSLG AFMRQGCDIS PRSLSGRIVG GVWWFFTLII ISSYTAN LA AFLTVERMVS PIESAEDLSK QTEIAYGTLD SGSTKEFFRR SKIAVFDKMW TYMRSAEPSV FVRTTAEGVA RVRKSKGK Y AYLLESTMNE YIEQRKPCDT MKVGGNLDSK GYGIATPKGS SLGTPVNLAV LKLSEQGVLD KLKNKWWYDK GECGAKDSG SKEKTSALSL SNVAGVFYIL VGGLGLAMLV ALIEFCYKSR AEAKRMKVAK NPQNINPSSS

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Macromolecule #3: Voltage-dependent calcium channel gamma-8 subunit

MacromoleculeName: Voltage-dependent calcium channel gamma-8 subunit / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Rattus norvegicus (Norway rat)
Molecular weightTheoretical: 43.576004 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: GESLKRWNEE RGLWCEKGVQ VLLTTIGAFA AFGLMTIAIS TDYWLYTRAL ICNTTNLTAG DDGPPHRGGS GSSEKKDPGG LTHSGLWRI CCLEGLKRGV CVKINHFPED TDYDHDSAEY LLRVVRASSI FPILSAILLL LGGVCVAASR VYKSKRNIIL G AGILFVAA ...String:
GESLKRWNEE RGLWCEKGVQ VLLTTIGAFA AFGLMTIAIS TDYWLYTRAL ICNTTNLTAG DDGPPHRGGS GSSEKKDPGG LTHSGLWRI CCLEGLKRGV CVKINHFPED TDYDHDSAEY LLRVVRASSI FPILSAILLL LGGVCVAASR VYKSKRNIIL G AGILFVAA GLSNIIGVIV YISANAGEPG PKRDEEKKNH YSYGWSFYFG GLSFILAEVI GVLAVNIYIE RSREAHCQSR SD LLKAGGG AGGSGGSGPS AILRLPSYRF RYRRRSRSSS RGSSEASPSR DASPGGPGGP GFASTDISMY TLSRDPSKGS VAA GLASAG GGGGGAGVGA YGGAAGAAGG GGTGSERDRG SSAGFLTLHN AFPKEAASGV TVTVTGPPAA PAPAPPAPAA PAPG TLSKE AAASNTNTLN RKLEVLFQ

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Macromolecule #4: GLUTAMIC ACID

MacromoleculeName: GLUTAMIC ACID / type: ligand / ID: 4 / Number of copies: 4 / Formula: GLU
Molecular weightTheoretical: 147.129 Da
Chemical component information

ChemComp-GLU:
GLUTAMIC ACID / Glutamic acid

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Macromolecule #5: CYCLOTHIAZIDE

MacromoleculeName: CYCLOTHIAZIDE / type: ligand / ID: 5 / Number of copies: 4 / Formula: CYZ
Molecular weightTheoretical: 389.878 Da
Chemical component information

ChemComp-CYZ:
CYCLOTHIAZIDE / Cyclothiazide

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Macromolecule #6: (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate

MacromoleculeName: (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate / type: ligand / ID: 6 / Number of copies: 4 / Formula: OLC
Molecular weightTheoretical: 356.54 Da
Chemical component information

ChemComp-OLC:
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate

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Macromolecule #7: PALMITIC ACID

MacromoleculeName: PALMITIC ACID / type: ligand / ID: 7 / Number of copies: 10 / Formula: PLM
Molecular weightTheoretical: 256.424 Da
Chemical component information

ChemComp-PLM:
PALMITIC ACID / Palmitic acid

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Macromolecule #8: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(tri...

MacromoleculeName: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate
type: ligand / ID: 8 / Number of copies: 2 / Formula: POV
Molecular weightTheoretical: 760.076 Da
Chemical component information

ChemComp-POV:
(2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate / phospholipid*YM / POPC

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Macromolecule #9: 5-[2-(4-fluorophenyl)-7-(4-oxidanylpiperidin-1-yl)pyrazolo[1,5-c]...

MacromoleculeName: 5-[2-(4-fluorophenyl)-7-(4-oxidanylpiperidin-1-yl)pyrazolo[1,5-c]pyrimidin-3-yl]-1,3-dihydroindol-2-one
type: ligand / ID: 9 / Number of copies: 2 / Formula: OIJ
Molecular weightTheoretical: 443.473 Da
Chemical component information

ChemComp-OIJ:
5-[2-(4-fluorophenyl)-7-(4-oxidanylpiperidin-1-yl)pyrazolo[1,5-c]pyrimidin-3-yl]-1,3-dihydroindol-2-one

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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

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.2 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 281537
FSC plot (resolution estimation)

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