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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-4572 | |||||||||
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| Title | GluA1/2 In complex with auxiliary subunit gamma-8 | |||||||||
Map data | Postprocesed map with B= -150 of sharpening | |||||||||
Sample |
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Keywords | AMPAR / ion channel / GluA1 / GluA2 / tarp / MEMBRANE PROTEIN | |||||||||
| Function / homology | Function and homology informationPhase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose / L-type voltage-gated calcium channel complex ...Phase 0 - rapid depolarisation / Phase 2 - plateau phase / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose / L-type voltage-gated calcium channel complex / neuron spine / myosin V binding / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / regulation of AMPA receptor activity / regulation of monoatomic ion transmembrane transport / Trafficking of AMPA receptors / channel regulator activity / LGI-ADAM interactions / protein phosphatase 2B binding / response to arsenic-containing substance / cellular response to L-glutamate / cellular response to dsRNA / dendritic spine membrane / long-term synaptic depression / beta-2 adrenergic receptor binding / Synaptic adhesion-like molecules / cellular response to peptide hormone stimulus / spine synapse / response to morphine / dendritic spine neck / neuronal cell body membrane / dendritic spine head / cellular response to amine stimulus / response to psychosocial stress / peptide hormone receptor binding / spinal cord development / Activation of AMPA receptors / protein kinase A binding / perisynaptic space / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / transmission of nerve impulse / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / behavioral response to pain / kainate selective glutamate receptor activity / cellular response to glycine / AMPA glutamate receptor complex / adenylate cyclase binding / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / asymmetric synapse / ionotropic glutamate receptor complex / conditioned place preference / response to electrical stimulus / regulation of receptor recycling / excitatory synapse / G-protein alpha-subunit binding / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of excitatory postsynaptic potential / positive regulation of synaptic transmission / long-term memory / positive regulation of synaptic transmission, glutamatergic / regulation of postsynaptic membrane neurotransmitter receptor levels / regulation of synaptic transmission, glutamatergic / postsynaptic density, intracellular component / neuronal action potential / voltage-gated calcium channel activity / response to fungicide / glutamate-gated receptor activity / synapse assembly / cytoskeletal protein binding / regulation of long-term synaptic depression / extracellular ligand-gated monoatomic ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / somatodendritic compartment / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / synaptic membrane / dendritic shaft / SNARE binding / response to cocaine / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / calcium channel regulator activity / synaptic transmission, glutamatergic / protein tetramerization / neuromuscular junction / cellular response to amino acid stimulus / response to nutrient levels / establishment of protein localization / postsynaptic density membrane / recycling endosome Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 4.4 Å | |||||||||
Authors | Herguedas B / Garcia-Nafria J | |||||||||
Citation | Journal: Science / Year: 2019Title: Architecture of the heteromeric GluA1/2 AMPA receptor in complex with the auxiliary subunit TARP γ8. Authors: Beatriz Herguedas / Jake F Watson / Hinze Ho / Ondrej Cais / Javier García-Nafría / Ingo H Greger / ![]() Abstract: AMPA-type glutamate receptors (AMPARs) mediate excitatory neurotransmission and are central regulators of synaptic plasticity, a molecular mechanism underlying learning and memory. Although AMPARs ...AMPA-type glutamate receptors (AMPARs) mediate excitatory neurotransmission and are central regulators of synaptic plasticity, a molecular mechanism underlying learning and memory. Although AMPARs act predominantly as heteromers, structural studies have focused on homomeric assemblies. Here, we present a cryo-electron microscopy structure of the heteromeric GluA1/2 receptor associated with two transmembrane AMPAR regulatory protein (TARP) γ8 auxiliary subunits, the principal AMPAR complex at hippocampal synapses. Within the receptor, the core subunits arrange to give the GluA2 subunit dominant control of gating. This structure reveals the geometry of the Q/R site that controls calcium flux, suggests association of TARP-stabilized lipids, and demonstrates that the extracellular loop of γ8 modulates gating by selectively interacting with the GluA2 ligand-binding domain. Collectively, this structure provides a blueprint for deciphering the signal transduction mechanisms of synaptic AMPARs. | |||||||||
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Structure visualization
| Movie |
Movie viewer |
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| Structure viewer | EM map: SurfView Molmil Jmol/JSmol |
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_4572.map.gz | 4.7 MB | EMDB map data format | |
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| Header (meta data) | emd-4572-v30.xml emd-4572.xml | 19 KB 19 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_4572_fsc.xml | 9.2 KB | Display | FSC data file |
| Images | emd_4572.png | 80.9 KB | ||
| Filedesc metadata | emd-4572.cif.gz | 7.5 KB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-4572 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4572 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6qkcMC ![]() 4575C ![]() 6qkzC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_4572.map.gz / Format: CCP4 / Size: 40.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Postprocesed map with B= -150 of sharpening | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.4 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : GluA1/A2 bound to gamma-8
| Entire | Name: GluA1/A2 bound to gamma-8 |
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| Components |
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-Supramolecule #1: GluA1/A2 bound to gamma-8
| Supramolecule | Name: GluA1/A2 bound to gamma-8 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 447 kDa/nm |
-Macromolecule #1: Glutamate receptor 1
| Macromolecule | Name: Glutamate receptor 1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 102.66193 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: 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 UniProtKB: Glutamate receptor 1 |
-Macromolecule #2: Glutamate receptor 2
| Macromolecule | Name: Glutamate receptor 2 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 96.247055 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: 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 UniProtKB: Glutamate receptor 2 |
-Macromolecule #3: Voltage-dependent calcium channel gamma-8 subunit
| Macromolecule | Name: Voltage-dependent calcium channel gamma-8 subunit / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 43.576004 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: 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 UniProtKB: Voltage-dependent calcium channel gamma-8 subunit |
-Macromolecule #4: 6-nitro-2,3-bis(oxidanylidene)-1,4-dihydrobenzo[f]quinoxaline-7-s...
| Macromolecule | Name: 6-nitro-2,3-bis(oxidanylidene)-1,4-dihydrobenzo[f]quinoxaline-7-sulfonamide type: ligand / ID: 4 / Number of copies: 4 / Formula: E2Q |
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| Molecular weight | Theoretical: 336.28 Da |
| Chemical component information | ![]() ChemComp-E2Q: |
-Macromolecule #5: (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
| Macromolecule | Name: (2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate / type: ligand / ID: 5 / Number of copies: 12 / Formula: OLC |
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| Molecular weight | Theoretical: 356.54 Da |
| Chemical component information | ![]() ChemComp-OLC: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Concentration | 0.4 mg/mL |
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| Buffer | pH: 8 Details: 25 mM TRIS, pH 8, 150 mM NaCl and 0.1 % digitonin (w/v) |
| Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 2 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 7 sec. |
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV Details: 3uL on grid, 60 sec incubation and 4sec blotting time. |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Temperature | Min: 100.0 K / Max: 100.0 K |
| Specialist optics | Phase plate: VOLTA PHASE PLATE / Energy filter - Slit width: 20 eV |
| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 3838 pixel / Digitization - Dimensions - Height: 3710 pixel / Number grids imaged: 3 / Number real images: 5005 / Average exposure time: 14.0 sec. / Average electron dose: 32.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | C2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: -0.9 µm / Nominal defocus min: -0.2 µm / Nominal magnification: 105000 |
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Initial model |
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| Refinement | Space: RECIPROCAL / Protocol: FLEXIBLE FIT | ||||||||
| Output model | ![]() PDB-6qkc: |
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Homo sapiens (human)






