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Yorodumi- PDB-5fwx: Crystal structure of the AMPA receptor GluA2/A4 N-terminal domain... -
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Basic information
| Entry | Database: PDB / ID: 5fwx | ||||||
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| Title | Crystal structure of the AMPA receptor GluA2/A4 N-terminal domain heterodimer | ||||||
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Keywords | TRANSPORT PROTEIN | ||||||
| Function / homology | Function and homology informationTrafficking of AMPA receptors / kainate selective glutamate receptor complex / regulation of synapse structure or activity / Synaptic adhesion-like molecules / spine synapse / dendritic spine neck / dendritic spine head / cellular response to amine stimulus / Activation of AMPA receptors / perisynaptic space ...Trafficking of AMPA receptors / kainate selective glutamate receptor complex / regulation of synapse structure or activity / Synaptic adhesion-like molecules / spine synapse / dendritic spine neck / dendritic spine head / cellular response to amine stimulus / Activation of AMPA receptors / perisynaptic space / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / negative regulation of smooth muscle cell apoptotic process / kainate selective glutamate receptor activity / cellular response to glycine / AMPA glutamate receptor complex / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / asymmetric synapse / ionotropic glutamate receptor complex / conditioned place preference / regulation of receptor recycling / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of synaptic transmission / positive regulation of synaptic transmission, glutamatergic / regulation of synaptic transmission, glutamatergic / response to fungicide / glutamate-gated receptor activity / regulation of long-term synaptic depression / cytoskeletal protein binding / 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 / dendritic shaft / SNARE binding / PDZ domain binding / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / protein tetramerization / establishment of protein localization / postsynaptic density membrane / cerebral cortex development / modulation of chemical synaptic transmission / receptor internalization / Schaffer collateral - CA1 synapse / terminal bouton / synaptic vesicle / synaptic vesicle membrane / signaling receptor activity / presynapse / amyloid-beta binding / growth cone / presynaptic membrane / scaffold protein binding / perikaryon / dendritic spine / chemical synaptic transmission / postsynaptic membrane / neuron projection / postsynaptic density / axon / external side of plasma membrane / neuronal cell body / synapse / dendrite / protein kinase binding / protein-containing complex binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / plasma membrane Similarity search - Function | ||||||
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| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.5 Å | ||||||
Authors | Garcia-Nafria, J. / Herguedas, B. / Greger, I.H. | ||||||
Citation | Journal: Science / Year: 2016Title: Structure and organization of heteromeric AMPA-type glutamate receptors. Authors: Beatriz Herguedas / Javier García-Nafría / Ondrej Cais / Rafael Fernández-Leiro / James Krieger / Hinze Ho / Ingo H Greger / ![]() Abstract: AMPA-type glutamate receptors (AMPARs), which are central mediators of rapid neurotransmission and synaptic plasticity, predominantly exist as heteromers of the subunits GluA1 to GluA4. Here we ...AMPA-type glutamate receptors (AMPARs), which are central mediators of rapid neurotransmission and synaptic plasticity, predominantly exist as heteromers of the subunits GluA1 to GluA4. Here we report the first AMPAR heteromer structures, which deviate substantially from existing GluA2 homomer structures. Crystal structures of the GluA2/3 and GluA2/4 N-terminal domains reveal a novel compact conformation with an alternating arrangement of the four subunits around a central axis. This organization is confirmed by cysteine cross-linking in full-length receptors, and it permitted us to determine the structure of an intact GluA2/3 receptor by cryogenic electron microscopy. Two models in the ligand-free state, at resolutions of 8.25 and 10.3 angstroms, exhibit substantial vertical compression and close associations between domain layers, reminiscent of N-methyl-D-aspartate receptors. Model 1 resembles a resting state and model 2 a desensitized state, thus providing snapshots of gating transitions in the nominal absence of ligand. Our data reveal organizational features of heteromeric AMPARs and provide a framework to decipher AMPAR architecture and signaling. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 5fwx.cif.gz | 563.9 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb5fwx.ent.gz | 462.1 KB | Display | PDB format |
| PDBx/mmJSON format | 5fwx.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/fw/5fwx ftp://data.pdbj.org/pub/pdb/validation_reports/fw/5fwx | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 8090C ![]() 8091C ![]() 5fwyC ![]() 5ideC ![]() 5idfC ![]() 3hsyS ![]() 4gpaS S: Starting model for refinement C: citing same article ( |
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| Similar structure data |
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Assembly
| Deposited unit | ![]()
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| 1 | ![]()
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| 2 | ![]()
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| Unit cell |
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Components
| #1: Protein | Mass: 43731.359 Da / Num. of mol.: 2 / Fragment: RESIDUES 25-400 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() HOMO SAPIENS (human) / References: UniProt: P19491#2: Protein | Mass: 44547.430 Da / Num. of mol.: 2 / Fragment: RESIDUES 22-401 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() HOMO SAPIENS (human) / References: UniProt: P19493#3: Chemical | ChemComp-SO4 / #4: Sugar | #5: Water | ChemComp-HOH / | Has protein modification | Y | |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.5 Å3/Da / Density % sol: 40.01 % / Description: NONE |
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| Crystal grow | Details: 17% PEG 3350 WITH 0.1-0.35 M AMMONIUM SULPHATE |
-Data collection
| Diffraction | Mean temperature: 100 K | |||||||||||||||
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| Diffraction source | Source: SYNCHROTRON / Site: Diamond / Beamline: I04-1 / Wavelength: 0.92 | |||||||||||||||
| Detector | Type: DECTRIS PILATUS / Detector: PIXEL / Date: Dec 9, 2012 | |||||||||||||||
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | |||||||||||||||
| Radiation wavelength | Wavelength: 0.92 Å / Relative weight: 1 | |||||||||||||||
| Reflection twin |
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| Reflection | Resolution: 2.5→39.68 Å / Num. obs: 45771 / % possible obs: 96.3 % / Observed criterion σ(I): 2 / Redundancy: 3.2 % / Rmerge(I) obs: 0.06 / Net I/σ(I): 12.2 | |||||||||||||||
| Reflection shell | Resolution: 2.5→2.64 Å / Redundancy: 3.3 % / Rmerge(I) obs: 0.35 / Mean I/σ(I) obs: 3 / % possible all: 96 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: PDB ENTRIES 4GPA AND 3HSY Resolution: 2.5→39.16 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.936 / SU B: 15.791 / SU ML: 0.187 / Cross valid method: THROUGHOUT / ESU R: 0.499 / ESU R Free: 0.065 / Stereochemistry target values: MAXIMUM LIKELIHOOD Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES WITH TLS ADDED
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| Solvent computation | Ion probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 58.23 Å2
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| Refinement step | Cycle: LAST / Resolution: 2.5→39.16 Å
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HOMO SAPIENS (human)

