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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 | |||||||||
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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 / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / 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 / eye blink reflex / positive regulation of protein localization to basolateral plasma membrane / cellular response to ammonium ion / response to sucrose / neuron spine / myosin V binding / cerebellar mossy fiber / postsynaptic neurotransmitter receptor diffusion trapping / proximal dendrite / regulation of AMPA receptor activity / regulation of monoatomic ion transmembrane transport / channel regulator activity / Trafficking of AMPA receptors / LGI-ADAM interactions / response to arsenic-containing substance / cellular response to L-glutamate / cellular response to dsRNA / dendritic spine membrane / membrane hyperpolarization / long-term synaptic depression / nervous system process / beta-2 adrenergic receptor binding / Synaptic adhesion-like molecules / protein targeting to membrane / cellular response to peptide hormone stimulus / voltage-gated calcium channel complex / response to morphine / neuronal cell body membrane / spine synapse / dendritic spine neck / protein kinase A binding / dendritic spine head / cellular response to amine stimulus / peptide hormone receptor binding / neurotransmitter receptor localization to postsynaptic specialization membrane / response to psychosocial stress / spinal cord development / neuromuscular junction development / perisynaptic space / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / transmission of nerve impulse / response to lithium ion / Trafficking of GluR2-containing AMPA receptors / behavioral response to pain / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / cellular response to glycine / adenylate cyclase binding / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / asymmetric synapse / ionotropic glutamate receptor complex / conditioned place preference / excitatory synapse / response to electrical stimulus / regulation of receptor recycling / membrane depolarization / G-protein alpha-subunit binding / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of excitatory postsynaptic potential / 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 / regulation of synaptic transmission, glutamatergic / neuronal action potential / voltage-gated calcium channel activity / response to fungicide / cytoskeletal protein binding / glutamate-gated receptor activity / 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 / dendrite membrane / ionotropic glutamate receptor binding / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / synaptic membrane / hippocampal mossy fiber to CA3 synapse / dendritic shaft / SNARE binding / regulation of membrane potential / response to cocaine / calcium channel regulator activity / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential 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 |
-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 ( |
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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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-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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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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