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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-9389 | |||||||||
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| Title | structure of a complex | |||||||||
Map data | Complex | |||||||||
Sample |
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Keywords | AMPA receptor / ligand gated ion channel / neurotransmitter / synapse / MEMBRANE PROTEIN | |||||||||
| Function / homology | Function and homology informationCargo concentration in the ER / Presynaptic depolarization and calcium channel opening / 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 / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane ...Cargo concentration in the ER / Presynaptic depolarization and calcium channel opening / 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 / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / 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 / cerebellar mossy fiber / Trafficking of AMPA receptors / proximal dendrite / response to arsenic-containing substance / postsynaptic neurotransmitter receptor diffusion trapping / membrane hyperpolarization / 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 / protein targeting to membrane / nervous system process / spinal cord development / voltage-gated calcium channel complex / regulation of synaptic plasticity by chemical substance / spine synapse / dendritic spine neck / dendritic spine cytoplasm / cellular response to amine stimulus / dendritic spine head / response to psychosocial stress / peptide hormone receptor binding / response to morphine / neurotransmitter receptor localization to postsynaptic specialization membrane / Activation of AMPA receptors / protein heterotetramerization / ligand-gated monoatomic cation channel activity / 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 / AMPA glutamate receptor clustering / regulation of receptor recycling / parallel fiber to Purkinje cell synapse / neuromuscular junction development / neuronal action potential / kainate selective glutamate receptor activity / response to electrical stimulus / adenylate cyclase binding / transmission of nerve impulse / AMPA glutamate receptor complex / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / cellular response to glycine / membrane depolarization / immunoglobulin binding / asymmetric synapse / Unblocking of NMDA receptors, glutamate binding and activation / G-protein alpha-subunit binding / glutamate receptor binding / regulation of postsynaptic membrane neurotransmitter receptor levels / positive regulation of synaptic transmission / conditioned place preference / long-term memory / regulation of synaptic transmission, glutamatergic / response to fungicide / postsynaptic density, intracellular component / voltage-gated calcium channel activity / extracellular ligand-gated monoatomic ion channel activity / cytoskeletal protein binding / glutamate-gated receptor activity / positive regulation of synaptic transmission, glutamatergic / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / synapse assembly / glutamate-gated calcium ion channel activity / somatodendritic compartment / presynaptic active zone membrane / synaptic cleft / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / excitatory synapse / dendrite cytoplasm / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / cellular response to amino acid stimulus Similarity search - Function | |||||||||
| Biological species | ![]() ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 6.5 Å | |||||||||
Authors | Gouaux E / Zhao Y | |||||||||
Citation | Journal: Science / Year: 2019Title: 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. | |||||||||
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Structure visualization
| Movie |
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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_9389.map.gz | 8.4 MB | EMDB map data format | |
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| Header (meta data) | emd-9389-v30.xml emd-9389.xml | 33.3 KB 33.3 KB | Display Display | EMDB header |
| Images | emd_9389.png | 113.6 KB | ||
| Filedesc metadata | emd-9389.cif.gz | 8.5 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 | https://data.pdbj.org/pub/emdb/structures/EMD-9389 ftp://data.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 ( |
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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_9389.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | ||||||||||||
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-Additional map: Complex
| File | emd_9389_additional_2.map | ||||||||||||
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| Annotation | Complex | ||||||||||||
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-Additional map: Complex
| File | emd_9389_additional_3.map | ||||||||||||
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| Annotation | Complex | ||||||||||||
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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 |
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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 |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 54.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
| Refinement | Space: REAL / Protocol: RIGID BODY FIT |
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| Output model | ![]() PDB-6njn: |
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