+Open data
-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 information 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 locomotion involved in locomotory behavior / positive regulation of membrane potential / 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 locomotion involved in locomotory behavior / positive regulation of membrane potential / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / neurotransmitter receptor activity involved in regulation of postsynaptic cytosolic calcium ion concentration / cerebellar mossy fiber / response to sucrose / proximal dendrite / neurotransmitter receptor transport, postsynaptic endosome to lysosome / LGI-ADAM interactions / myosin V binding / Trafficking of AMPA receptors / neuron spine / cellular response to dsRNA / cellular response to L-glutamate / regulation of AMPA receptor activity / conditioned place preference / neurotransmitter receptor internalization / membrane hyperpolarization / response to arsenic-containing substance / regulation of monoatomic ion transmembrane transport / postsynaptic neurotransmitter receptor diffusion trapping / nervous system process / dendritic spine membrane / Synaptic adhesion-like molecules / protein targeting to membrane / long-term synaptic depression / response to morphine / beta-2 adrenergic receptor binding / cellular response to peptide hormone stimulus / voltage-gated calcium channel complex / neurotransmitter receptor localization to postsynaptic specialization membrane / protein kinase A binding / peptide hormone receptor binding / neuromuscular junction development / response to psychosocial stress / spine synapse / dendritic spine neck / spinal cord development / dendritic spine head / neuronal cell body membrane / Activation of AMPA receptors / perisynaptic space / behavioral response to pain / AMPA glutamate receptor activity / transmission of nerve impulse / ligand-gated monoatomic cation channel activity / channel regulator activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / cellular response to organic cyclic compound / regulation of postsynaptic membrane neurotransmitter receptor levels / AMPA glutamate receptor complex / membrane depolarization / kainate selective glutamate receptor activity / excitatory synapse / adenylate cyclase binding / ionotropic glutamate receptor complex / regulation of postsynaptic membrane potential / positive regulation of excitatory postsynaptic potential / cellular response to glycine / asymmetric synapse / postsynaptic density, intracellular component / calcium channel regulator activity / regulation of receptor recycling / neuronal action potential / G-protein alpha-subunit binding / Unblocking of NMDA receptors, glutamate binding and activation / voltage-gated calcium channel activity / glutamate receptor binding / positive regulation of synaptic transmission / response to electrical stimulus / long-term memory / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / 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 / ionotropic glutamate receptor signaling pathway / hippocampal mossy fiber to CA3 synapse / positive regulation of synaptic transmission, glutamatergic / response to nutrient levels / regulation of membrane potential Similarity search - Function | |||||||||
Biological species | Rattus norvegicus (Norway rat) / Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 6.7 Å | |||||||||
Authors | Gouaux E / Zhao Y | |||||||||
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 |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-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 |
-Validation report
Summary document | emd_9387_validation.pdf.gz | 394.3 KB | Display | EMDB validaton report |
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Full document | emd_9387_full_validation.pdf.gz | 393.8 KB | Display | |
Data in XML | emd_9387_validation.xml.gz | 6.5 KB | Display | |
Data in CIF | emd_9387_validation.cif.gz | 7.5 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9387 ftp://ftp.pdbj.org/pub/emdb/validation_reports/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 (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-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 | ||||||||||||
Projections & Slices |
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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 | ||||||||||||
Projections & Slices |
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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 | ||||||||||||
Projections & Slices |
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Density Histograms |
-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 |
-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 |
-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 |
+Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: RIGID BODY FIT |
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Output model | PDB-6njl: |