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Yorodumi- PDB-6ruq: Structure of GluA2cryst in complex the antagonist ZK200775 and th... -
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Basic information
| Entry | Database: PDB / ID: 6ruq | ||||||||||||||||||
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| Title | Structure of GluA2cryst in complex the antagonist ZK200775 and the negative allosteric modulator GYKI53655 at 4.65 A resolution | ||||||||||||||||||
Components | Glutamate receptor 2 | ||||||||||||||||||
Keywords | MEMBRANE PROTEIN / Receptor Negative allosteric modulator Antagonist Non-competitve antagonist | ||||||||||||||||||
| Function / homology | Function and homology informationregulation of synaptic plasticity by chemical substance / spine synapse / dendritic spine neck / dendritic spine cytoplasm / cellular response to amine stimulus / response to phorbol 13-acetate 12-myristate / dendritic spine head / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / perisynaptic space ...regulation of synaptic plasticity by chemical substance / spine synapse / dendritic spine neck / dendritic spine cytoplasm / cellular response to amine stimulus / response to phorbol 13-acetate 12-myristate / dendritic spine head / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / perisynaptic space / response to lithium ion / Trafficking of GluR2-containing AMPA receptors / AMPA glutamate receptor activity / AMPA glutamate receptor clustering / regulation of receptor recycling / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / cellular response to glycine / immunoglobulin binding / asymmetric synapse / Unblocking of NMDA receptors, glutamate binding and activation / response to fungicide / glutamate receptor binding / positive regulation of synaptic transmission / conditioned place preference / regulation of synaptic transmission, glutamatergic / cytoskeletal protein binding / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / glutamate-gated calcium ion channel activity / somatodendritic compartment / presynaptic active zone membrane / ionotropic glutamate receptor binding / ionotropic glutamate receptor signaling pathway / excitatory synapse / dendrite cytoplasm / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / positive regulation of excitatory postsynaptic potential / SNARE binding / synaptic membrane / establishment of protein localization / synaptic transmission, glutamatergic / PDZ domain binding / cerebral cortex development / dendritic shaft / protein tetramerization / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / long-term synaptic potentiation / receptor internalization / postsynaptic density membrane / Schaffer collateral - CA1 synapse / modulation of chemical synaptic transmission / terminal bouton / synaptic vesicle membrane / synaptic vesicle / signaling receptor activity / amyloid-beta binding / presynapse / growth cone / chemical synaptic transmission / scaffold protein binding / presynaptic membrane / dendritic spine / perikaryon / neuron projection / postsynaptic membrane / postsynaptic density / external side of plasma membrane / axon / neuronal cell body / dendrite / protein kinase binding / synapse / glutamatergic synapse / protein-containing complex binding / perinuclear region of cytoplasm / cell surface / endoplasmic reticulum / protein-containing complex / membrane / identical protein binding / plasma membrane Similarity search - Function | ||||||||||||||||||
| Biological species | ![]() | ||||||||||||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 4.65 Å | ||||||||||||||||||
Authors | Krintel, C. / Venskutonyte, R. / Mirza, O.A. / Gajhede, M. / Kastrup, J.S. | ||||||||||||||||||
| Funding support | Denmark, 5items
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Citation | Journal: FEBS J / Year: 2021Title: Binding of a negative allosteric modulator and competitive antagonist can occur simultaneously at the ionotropic glutamate receptor GluA2. Authors: Christian Krintel / Jerzy Dorosz / Andreas Haahr Larsen / Thor Seneca Thorsen / Raminta Venskutonytė / Osman Mirza / Michael Gajhede / Thomas Boesen / Jette Sandholm Kastrup / ![]() Abstract: Ionotropic glutamate receptors are ligand-gated ion channels governing neurotransmission in the central nervous system. Three major types of antagonists are known for the AMPA-type receptor GluA2: ...Ionotropic glutamate receptors are ligand-gated ion channels governing neurotransmission in the central nervous system. Three major types of antagonists are known for the AMPA-type receptor GluA2: competitive, noncompetitive (i.e., negative allosteric modulators; NAMs) used for treatment of epilepsy, and uncompetitive antagonists. We here report a 4.65 Å resolution X-ray structure of GluA2, revealing that four molecules of the competitive antagonist ZK200775 and four molecules of the NAM GYKI53655 are capable of binding at the same time. Using negative stain electron microscopy, we show that GYKI53655 alone or ZK200775/GYKI53655 in combination predominantly results in compact receptor forms. The agonist AMPA provides a mixed population of compact and bulgy shapes of GluA2 not impacted by addition of GYKI53655. Taken together, this suggests that the two different mechanisms of antagonism that lead to channel closure are independent and that the distribution between bulgy and compact receptors primarily depends on the ligand bound in the glutamate binding site. DATABASE: The atomic coordinates and structure factors from the crystal structure determination have been deposited in the Protein Data Bank under accession code https://doi.org/10.2210/pdb6RUQ/pdb. The electron microscopy 3D reconstruction volumes have been deposited in EMDB (EMD-4875: Apo; EMD-4920: ZK200775/GYKI53655; EMD-4921: AMPA compact; EMD-4922: AMPA/GYKI53655 bulgy; EMD-4923: GYKI53655; EMD-4924: AMPA bulgy; EMD-4925: AMPA/GYKI53655 compact). | ||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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| PDBx/mmCIF format | 6ruq.cif.gz | 769.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb6ruq.ent.gz | 512.6 KB | Display | PDB format |
| PDBx/mmJSON format | 6ruq.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ru/6ruq ftp://data.pdbj.org/pub/pdb/validation_reports/ru/6ruq | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 4875C ![]() 4920C ![]() 4921C ![]() 4922C ![]() 4923C ![]() 4924C ![]() 4925C ![]() 5l1hS 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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| Noncrystallographic symmetry (NCS) | NCS domain:
NCS domain segments: Ens-ID: 1
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X-RAY DIFFRACTION
Denmark, 5items
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