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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 / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / 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 / positive regulation of locomotion involved in locomotory behavior / COPII-mediated vesicle transport / 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 / myosin V binding / positive regulation of AMPA receptor activity / cerebellar mossy fiber / LGI-ADAM interactions / neuron spine / Trafficking of AMPA receptors / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / membrane hyperpolarization / response to arsenic-containing substance / regulation of AMPA receptor activity / cellular response to L-glutamate / channel regulator activity / cellular response to dsRNA / long-term synaptic depression / ligand-gated calcium channel activity / dendritic spine membrane / beta-2 adrenergic receptor binding / Synaptic adhesion-like molecules / protein targeting to membrane / nervous system process / voltage-gated calcium channel complex / cellular response to peptide hormone stimulus / regulation of synaptic plasticity by chemical substance / spine synapse / dendritic spine neck / dendritic spine cytoplasm / dendritic spine head / cellular response to amine stimulus / response to morphine / response to psychosocial stress / peptide hormone receptor binding / Activation of AMPA receptors / neurotransmitter receptor localization to postsynaptic specialization membrane / ligand-gated monoatomic cation channel activity / protein heterotetramerization / spinal cord development / perisynaptic space / neuronal cell body membrane / Trafficking of GluR2-containing AMPA receptors / protein kinase A binding / response to lithium ion / AMPA glutamate receptor activity / behavioral response to pain / AMPA glutamate receptor clustering / neuromuscular junction development / parallel fiber to Purkinje cell synapse / transmission of nerve impulse / regulation of receptor recycling / kainate selective glutamate receptor activity / immunoglobulin binding / adenylate cyclase binding / AMPA glutamate receptor complex / response to electrical stimulus / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / cellular response to glycine / membrane depolarization / asymmetric synapse / Unblocking of NMDA receptors, glutamate binding and activation / G-protein alpha-subunit binding / glutamate receptor binding / positive regulation of synaptic transmission / neuronal action potential / regulation of postsynaptic membrane neurotransmitter receptor levels / conditioned place preference / long-term memory / voltage-gated calcium channel activity / postsynaptic density, intracellular component / synaptic cleft / response to fungicide / regulation of synaptic transmission, glutamatergic / extracellular ligand-gated monoatomic ion channel activity / cytoskeletal protein binding / glutamate-gated receptor activity / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / positive regulation of synaptic transmission, glutamatergic / glutamate-gated calcium ion channel activity / synapse assembly / somatodendritic compartment / presynaptic active zone membrane / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / dendrite membrane / excitatory synapse / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of excitatory postsynaptic potential 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 | 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 ( |
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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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