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Open data
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Basic information
| Entry | Database: EMDB / ID: EMD-9387 | |||||||||
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| Title | structure of a complex | |||||||||
Map data | Structure of a complex | |||||||||
Sample |
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Keywords | AMPA receptor / ligand gated ion channel / neurotransmitter / synapse / MEMBRANE PROTEIN / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | |||||||||
| Function / homology | Function and homology informationCargo concentration in the ER / axonal spine / Presynaptic depolarization and calcium channel opening / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / cellular response to ammonium ion / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / response to sucrose ...Cargo concentration in the ER / axonal spine / Presynaptic depolarization and calcium channel opening / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / COPII-mediated vesicle transport / cellular response to ammonium ion / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / response to sucrose / neuron spine / myosin V binding / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / channel regulator activity / regulation of monoatomic ion transmembrane transport / LGI-ADAM interactions / Trafficking of AMPA receptors / regulation of AMPA receptor activity / response to arsenic-containing substance / cellular response to L-glutamate / cellular response to dsRNA / dendritic spine membrane / membrane hyperpolarization / long-term synaptic depression / beta-2 adrenergic receptor binding / nervous system process / Synaptic adhesion-like molecules / protein targeting to membrane / cellular response to peptide hormone stimulus / voltage-gated calcium channel complex / spine synapse / dendritic spine neck / dendritic spine cytoplasm / neuronal cell body membrane / 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 / spinal cord development / perisynaptic space / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / protein kinase A binding / neuromuscular junction development / AMPA glutamate receptor activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / behavioral response to pain / transmission of nerve impulse / AMPA glutamate receptor clustering / adenylate cyclase binding / cellular response to glycine / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / immunoglobulin binding / asymmetric synapse / response to electrical stimulus / regulation of receptor recycling / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / membrane depolarization / G-protein alpha-subunit binding / conditioned place preference / Unblocking of NMDA receptors, glutamate binding and activation / glutamate receptor binding / long-term memory / positive regulation of synaptic transmission / regulation of synaptic transmission, glutamatergic / positive regulation of synaptic transmission, glutamatergic / regulation of postsynaptic membrane neurotransmitter receptor levels / postsynaptic density, intracellular component / neuronal action potential / response to fungicide / voltage-gated calcium channel activity / cytoskeletal protein binding / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / synapse assembly / somatodendritic compartment / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / dendrite membrane / excitatory synapse / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / synaptic membrane / positive regulation of excitatory postsynaptic potential / dendritic shaft / hippocampal mossy fiber to CA3 synapse / SNARE binding / response to cocaine / PDZ domain binding Similarity search - Function | |||||||||
| Biological species | ![]() ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 6.7 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 |
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Downloads & links
-EMDB archive
| Map data | emd_9387.map.gz | 10.7 MB | EMDB map data format | |
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| Header (meta data) | emd-9387-v30.xml emd-9387.xml | 25.8 KB 25.8 KB | Display Display | EMDB header |
| Images | emd_9387.png | 91.5 KB | ||
| Filedesc metadata | emd-9387.cif.gz | 7.9 KB | ||
| Others | emd_9387_additional_1.map.gz emd_9387_additional_2.map.gz emd_9387_additional_3.map.gz | 7.8 MB 8.9 MB 8.9 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-9387 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9387 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 6njlMC ![]() 0426C ![]() 0427C ![]() 0428C ![]() 0429C ![]() 0430C ![]() 0431C ![]() 0432C ![]() 9388C ![]() 9389C ![]() 6njmC ![]() 6njnC 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_9387.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Annotation | Structure of a 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: Structure of a complex
| File | emd_9387_additional_1.map | ||||||||||||
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| Annotation | Structure of a complex | ||||||||||||
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| Density Histograms |
-Additional map: Structure of a complex
| File | emd_9387_additional_2.map | ||||||||||||
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| Annotation | Structure of a complex | ||||||||||||
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| Density Histograms |
-Additional map: Structure of a complex
| File | emd_9387_additional_3.map | ||||||||||||
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| Annotation | Structure of a complex | ||||||||||||
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| Density Histograms |
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Sample components
+Entire : Native A1A2A1A2 complex bound with MPQX
+Supramolecule #1: Native A1A2A1A2 complex bound with MPQX
+Macromolecule #1: Glutamate receptor 1
+Macromolecule #2: Glutamate receptor 2
+Macromolecule #3: A'/C' auxiliary proteins
+Macromolecule #4: Voltage-dependent calcium channel gamma-2 subunit
+Macromolecule #5: 11B8 scFv
+Macromolecule #6: 15F1 Fab light chain
+Macromolecule #7: 15F1 Fab heavy chain
+Macromolecule #9: {[7-morpholin-4-yl-2,3-dioxo-6-(trifluoromethyl)-3,4-dihydroquino...
+Macromolecule #10: 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-6njl: |
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