+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-9389 | |||||||||
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Title | Architecture and subunit arrangement of native AMPA receptors | |||||||||
Map data | Complex | |||||||||
Sample |
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Function / homology | Function and homology information Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / chemical synaptic transmission, postsynaptic / COPII-mediated vesicle transport / positive regulation of membrane potential / cellular response to ammonium ion ...Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / chemical synaptic transmission, postsynaptic / COPII-mediated vesicle transport / positive regulation of membrane potential / cellular response to ammonium ion / cerebellar mossy fiber / neurotransmitter receptor transport, postsynaptic endosome to lysosome / 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 / membrane hyperpolarization / dendritic spine membrane / postsynaptic neurotransmitter receptor diffusion trapping / response to arsenic-containing substance / cellular response to dsRNA / nervous system process / Synaptic adhesion-like molecules / protein targeting to membrane / parallel fiber to Purkinje cell synapse / neurotransmitter receptor localization to postsynaptic specialization membrane / long-term synaptic depression / beta-2 adrenergic receptor binding / protein kinase A binding / cellular response to peptide hormone stimulus / neuronal cell body membrane / neuromuscular junction development / spine synapse / spinal cord development / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / voltage-gated calcium channel complex / 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 / membrane depolarization / 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 postsynaptic membrane potential / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / voltage-gated calcium channel activity / glutamate receptor binding / synaptic cleft / 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 / hippocampal mossy fiber to CA3 synapse / cytoskeletal protein binding / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / regulation of membrane potential / 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 Similarity search - Function | |||||||||
Biological species | Rattus norvegicus (Norway rat) / Rat (rat) / Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 6.5 Å | |||||||||
Authors | Gouaux E / Zhao Y | |||||||||
Citation | Journal: Science / Year: 2019 Title: Architecture and subunit arrangement of native AMPA receptors elucidated by cryo-EM. Authors: Yan Zhao / Shanshuang Chen / Adam C Swensen / Wei-Jun Qian / Eric Gouaux / Abstract: Glutamate-gated AMPA receptors mediate the fast component of excitatory signal transduction at chemical synapses throughout all regions of the mammalian brain. AMPA receptors are tetrameric ...Glutamate-gated AMPA receptors mediate the fast component of excitatory signal transduction at chemical synapses throughout all regions of the mammalian brain. AMPA receptors are tetrameric assemblies composed of four subunits, GluA1-GluA4. Despite decades of study, the subunit composition, subunit arrangement, and molecular structure of native AMPA receptors remain unknown. Here we elucidate the structures of 10 distinct native AMPA receptor complexes by single-particle cryo-electron microscopy (cryo-EM). We find that receptor subunits are arranged nonstochastically, with the GluA2 subunit preferentially occupying the B and D positions of the tetramer and with triheteromeric assemblies comprising a major population of native AMPA receptors. Cryo-EM maps define the structure for S2-M4 linkers between the ligand-binding and transmembrane domains, suggesting how neurotransmitter binding is coupled to ion channel gating. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_9389.map.gz | 8.4 MB | EMDB map data format | |
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Header (meta data) | emd-9389-v30.xml emd-9389.xml | 33.1 KB 33.1 KB | Display Display | EMDB header |
Images | emd_9389.png | 113.6 KB | ||
Others | emd_9389_additional_1.map.gz emd_9389_additional_2.map.gz emd_9389_additional_3.map.gz | 6.4 MB 7.7 MB 8.6 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-9389 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9389 | HTTPS FTP |
-Related structure data
Related structure data | 6njnMC 0426C 0427C 0428C 0429C 0430C 0431C 0432C 9387C 9388C 6njlC 6njmC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_9389.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.72 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Complex
File | emd_9389_additional_1.map | ||||||||||||
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Annotation | Complex | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Complex
File | emd_9389_additional_2.map | ||||||||||||
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Annotation | Complex | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Complex
File | emd_9389_additional_3.map | ||||||||||||
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Annotation | Complex | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Native GluA1/GluA2/GluA3/GluA2 complex bound with MPQX
+Supramolecule #1: Native GluA1/GluA2/GluA3/GluA2 complex bound with MPQX
+Supramolecule #2: ATD-LBD layers of native tri-heteromeric A1A2A3A2 AMPAR
+Supramolecule #3: LBD-TMD layers of native tri-heteromeric A1A2A3A2 AMPAR
+Supramolecule #4: ATD layer of native tri-heteromeric A1A2A3A2 AMPAR
+Macromolecule #1: Glutamate receptor 1
+Macromolecule #2: Glutamate receptor 2
+Macromolecule #3: Glutamate receptor 3
+Macromolecule #4: A'-C' auxiliary proteins
+Macromolecule #5: Voltage-dependent calcium channel gamma-2 subunit
+Macromolecule #6: 11B8 scFv
+Macromolecule #7: 15F1 Fab light chain
+Macromolecule #8: 15F1 Fab heavy chain
+Macromolecule #9: 5B2 Fab
+Macromolecule #12: {[7-morpholin-4-yl-2,3-dioxo-6-(trifluoromethyl)-3,4-dihydroquino...
+Macromolecule #13: 2-acetamido-2-deoxy-beta-D-glucopyranose
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 4 mg/mL | ||||||||||||
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Buffer | pH: 8 Component:
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Grid | Details: unspecified | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 295 K |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 54.0 e/Å2 |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Initial angle assignment | Type: RANDOM ASSIGNMENT |
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Final 3D classification | Number classes: 10 |
Final angle assignment | Type: RANDOM ASSIGNMENT |
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 6.5 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION / Number images used: 161000 |
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: RIGID BODY FIT |
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Output model | PDB-6njn: |