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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 | |||||||||
![]() | Complex | |||||||||
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![]() | AMPA receptor / ligand gated ion channel / neurotransmitter / synapse / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / positive regulation of locomotion involved in locomotory behavior / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion ...Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / cellular response to amine stimulus / axonal spine / COPII-mediated vesicle transport / positive regulation of membrane potential / positive regulation of locomotion involved in locomotory behavior / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / response to sucrose / cerebellar mossy fiber / LGI-ADAM interactions / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / neuron spine / myosin V binding / Trafficking of AMPA receptors / channel regulator activity / cellular response to L-glutamate / regulation of monoatomic ion transmembrane transport / regulation of AMPA receptor activity / response to arsenic-containing substance / conditioned place preference / cellular response to dsRNA / dendritic spine membrane / membrane hyperpolarization / nervous system process / Synaptic adhesion-like molecules / long-term synaptic depression / beta-2 adrenergic receptor binding / protein targeting to membrane / cellular response to peptide hormone stimulus / voltage-gated calcium channel complex / response to morphine / neuronal cell body membrane / peptide hormone receptor binding / protein kinase A binding / spine synapse / neurotransmitter receptor localization to postsynaptic specialization membrane / protein heterotetramerization / dendritic spine neck / neuromuscular junction development / response to psychosocial stress / dendritic spine head / spinal cord development / parallel fiber to Purkinje cell synapse / Activation of AMPA receptors / perisynaptic space / : / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / transmission of nerve impulse / immunoglobulin binding / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / behavioral response to pain / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / adenylate cyclase binding / membrane depolarization / excitatory synapse / positive regulation of excitatory postsynaptic potential / asymmetric synapse / regulation of receptor recycling / long-term memory / G-protein alpha-subunit binding / Unblocking of NMDA receptors, glutamate binding and activation / postsynaptic density, intracellular component / glutamate receptor binding / positive regulation of synaptic transmission / synaptic cleft / regulation of postsynaptic membrane neurotransmitter receptor levels / voltage-gated calcium channel activity / response to electrical stimulus / neuronal action potential / response to fungicide / regulation of synaptic transmission, glutamatergic / glutamate-gated receptor activity / cytoskeletal protein binding / synapse assembly / ionotropic glutamate receptor binding / extracellular ligand-gated monoatomic ion channel activity / presynaptic active zone membrane / somatodendritic compartment / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / dendrite cytoplasm / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / calcium channel regulator activity / ionotropic glutamate receptor signaling pathway / positive regulation of synaptic transmission, glutamatergic / SNARE binding / hippocampal mossy fiber to CA3 synapse / dendritic shaft / regulation of membrane potential Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 6.5 Å | |||||||||
![]() | Gouaux E / Zhao Y | |||||||||
![]() | ![]() 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
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 8.4 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 33.3 KB 33.3 KB | Display Display | ![]() |
Images | ![]() | 113.6 KB | ||
Filedesc metadata | ![]() | 8.5 KB | ||
Others | ![]() ![]() ![]() | 6.4 MB 7.7 MB 8.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 345.6 KB | Display | ![]() |
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Full document | ![]() | 345.2 KB | Display | |
Data in XML | ![]() | 6.5 KB | Display | |
Data in CIF | ![]() | 7.6 KB | Display | |
Arichive directory | ![]() ![]() | 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 | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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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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Density Histograms |
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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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![]() | 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: ![]() |
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: |