+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-23290 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | native AMPA receptor | |||||||||
Map data | ||||||||||
Sample |
| |||||||||
Function / homology | Function and homology information Activation of AMPA receptors / Synaptic adhesion-like molecules / Cargo concentration in the ER / Unblocking of NMDA receptors, glutamate binding and activation / COPII-mediated vesicle transport / cellular response to amine stimulus / axonal spine / Trafficking of GluR2-containing AMPA receptors / Trafficking of AMPA receptors / positive regulation of membrane potential ...Activation of AMPA receptors / Synaptic adhesion-like molecules / Cargo concentration in the ER / Unblocking of NMDA receptors, glutamate binding and activation / COPII-mediated vesicle transport / cellular response to amine stimulus / axonal spine / Trafficking of GluR2-containing AMPA receptors / Trafficking of AMPA receptors / positive regulation of membrane potential / cellular response to ammonium ion / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / myosin V binding / neuron spine / cellular response to dsRNA / response to arsenic-containing substance / dendritic spine membrane / parallel fiber to Purkinje cell synapse / long-term synaptic depression / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / protein heterotetramerization / protein kinase A binding / spine synapse / dendritic spine neck / spinal cord development / dendritic spine head / neuronal cell body membrane / perisynaptic space / AMPA glutamate receptor activity / ligand-gated monoatomic cation channel activity / response to lithium ion / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / excitatory synapse / adenylate cyclase binding / ionotropic glutamate receptor complex / regulation of postsynaptic membrane potential / cellular response to glycine / asymmetric synapse / postsynaptic density, intracellular component / regulation of receptor recycling / neuronal action potential / G-protein alpha-subunit binding / glutamate receptor binding / positive regulation of synaptic transmission / response to electrical stimulus / long-term memory / glutamate-gated receptor activity / synaptic cleft / response to fungicide / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / regulation of synaptic transmission, glutamatergic / ionotropic glutamate receptor binding / somatodendritic compartment / dendrite membrane / synapse assembly / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cytoskeletal protein binding / dendrite cytoplasm / SNARE binding / dendritic shaft / response to cocaine / synaptic transmission, glutamatergic / synaptic membrane / long-term synaptic potentiation / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / cellular response to amino acid stimulus / protein tetramerization / postsynaptic density membrane / establishment of protein localization / modulation of chemical synaptic transmission / neuromuscular junction / regulation of synaptic plasticity / terminal bouton / Schaffer collateral - CA1 synapse / receptor internalization / cerebral cortex development / response to toxic substance / small GTPase binding / synaptic vesicle membrane / recycling endosome membrane / G-protein beta-subunit binding / cell-cell junction / synaptic vesicle / response to estradiol / presynapse / signaling receptor activity / presynaptic membrane / amyloid-beta binding / early endosome membrane / growth cone / cell body / scaffold protein binding / chemical synaptic transmission Similarity search - Function | |||||||||
Biological species | Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 7.5 Å | |||||||||
Authors | Yu J / Rao P | |||||||||
Funding support | United States, 1 items
| |||||||||
Citation | Journal: Science / Year: 2019 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 |
|
-Structure visualization
Movie |
Movie viewer |
---|---|
Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_23290.map.gz | 118 MB | EMDB map data format | |
---|---|---|---|---|
Header (meta data) | emd-23290-v30.xml emd-23290.xml | 10.1 KB 10.1 KB | Display Display | EMDB header |
Images | emd_23290.png | 84.6 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-23290 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-23290 | HTTPS FTP |
-Validation report
Summary document | emd_23290_validation.pdf.gz | 424.7 KB | Display | EMDB validaton report |
---|---|---|---|---|
Full document | emd_23290_full_validation.pdf.gz | 424.2 KB | Display | |
Data in XML | emd_23290_validation.xml.gz | 6.7 KB | Display | |
Data in CIF | emd_23290_validation.cif.gz | 7.7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-23290 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-23290 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
---|---|
Related items in Molecule of the Month |
-Map
File | Download / File: emd_23290.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.611 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
|
-Supplemental data
-Sample components
-Entire : GluA1/A2/A3-asymmetric-conformation1 with bound antibody fragments
Entire | Name: GluA1/A2/A3-asymmetric-conformation1 with bound antibody fragments |
---|---|
Components |
|
-Supramolecule #1: GluA1/A2/A3-asymmetric-conformation1 with bound antibody fragments
Supramolecule | Name: GluA1/A2/A3-asymmetric-conformation1 with bound antibody fragments type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#11 |
---|---|
Source (natural) | Organism: Mus musculus (house mouse) |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
---|---|
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 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 |
-Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 7.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 66000 |
---|---|
Initial angle assignment | Type: NOT APPLICABLE |
Final angle assignment | Type: NOT APPLICABLE |