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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 | |||||||||
![]() | Structure of a complex | |||||||||
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![]() | AMPA receptor / ligand gated ion channel / neurotransmitter / synapse / MEMBRANE PROTEIN / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | |||||||||
Function / homology | ![]() Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose ...Presynaptic depolarization and calcium channel opening / Cargo concentration in the ER / axonal spine / positive regulation of locomotion involved in locomotory behavior / positive regulation of membrane potential / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / COPII-mediated vesicle transport / cellular response to ammonium ion / response to sucrose / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / neuron spine / myosin V binding / Trafficking of AMPA receptors / channel regulator activity / regulation of AMPA receptor activity / LGI-ADAM interactions / proximal dendrite / regulation of monoatomic ion transmembrane transport / response to arsenic-containing substance / cellular response to dsRNA / cellular response to L-glutamate / membrane hyperpolarization / dendritic spine membrane / nervous system process / long-term synaptic depression / Synaptic adhesion-like molecules / beta-2 adrenergic receptor binding / protein targeting to membrane / voltage-gated calcium channel complex / cellular response to peptide hormone stimulus / response to morphine / neuronal cell body membrane / spine synapse / dendritic spine neck / protein kinase A binding / neurotransmitter receptor localization to postsynaptic specialization membrane / dendritic spine head / peptide hormone receptor binding / cellular response to amine stimulus / response to psychosocial stress / neuromuscular junction development / spinal cord development / Activation of AMPA receptors / perisynaptic space / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / transmission of nerve impulse / 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 / adenylate cyclase binding / ionotropic glutamate receptor complex / immunoglobulin binding / asymmetric synapse / conditioned place preference / excitatory synapse / membrane depolarization / response to electrical stimulus / regulation of receptor recycling / G-protein alpha-subunit binding / positive regulation of excitatory postsynaptic potential / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / long-term memory / positive regulation of synaptic transmission / positive regulation of synaptic transmission, glutamatergic / postsynaptic density, intracellular component / regulation of postsynaptic membrane neurotransmitter receptor levels / neuronal action potential / voltage-gated calcium channel activity / regulation of synaptic transmission, glutamatergic / response to fungicide / glutamate-gated receptor activity / cytoskeletal protein binding / synapse assembly / regulation of long-term synaptic depression / extracellular ligand-gated monoatomic ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / somatodendritic compartment / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / synaptic membrane / hippocampal mossy fiber to CA3 synapse / SNARE binding / dendritic shaft / regulation of membrane potential / calcium channel regulator activity / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / response to cocaine Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 6.7 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 | ![]() | 10.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 25.8 KB 25.8 KB | Display Display | ![]() |
Images | ![]() | 91.5 KB | ||
Filedesc metadata | ![]() | 7.9 KB | ||
Others | ![]() ![]() ![]() | 7.8 MB 8.9 MB 8.9 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 394.3 KB | Display | ![]() |
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Full document | ![]() | 393.8 KB | Display | |
Data in XML | ![]() | 6.5 KB | Display | |
Data in CIF | ![]() | 7.5 KB | Display | |
Arichive directory | ![]() ![]() | 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 | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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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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-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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-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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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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![]() | 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-6njl: |