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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 informationspine synapse / dendritic spine cytoplasm / dendritic spine neck / cellular response to amine stimulus / dendritic spine head / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / perisynaptic space / AMPA glutamate receptor activity / Trafficking of GluR2-containing AMPA receptors ...spine synapse / dendritic spine cytoplasm / dendritic spine neck / cellular response to amine stimulus / dendritic spine head / Activation of AMPA receptors / ligand-gated monoatomic cation channel activity / perisynaptic space / AMPA glutamate receptor activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / AMPA glutamate receptor clustering / kainate selective glutamate receptor activity / immunoglobulin binding / asymmetric synapse / AMPA glutamate receptor complex / regulation of receptor recycling / extracellularly glutamate-gated ion channel activity / cellular response to glycine / ionotropic glutamate receptor complex / conditioned place preference / Unblocking of NMDA receptors, glutamate binding and activation / glutamate receptor binding / positive regulation of synaptic transmission / response to fungicide / regulation of synaptic transmission, glutamatergic / cytoskeletal protein binding / glutamate-gated receptor activity / extracellular ligand-gated monoatomic ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / somatodendritic compartment / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / excitatory synapse / ionotropic glutamate receptor binding / dendrite membrane / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / positive regulation of excitatory postsynaptic potential / synaptic membrane / dendritic shaft / SNARE binding / PDZ domain binding / synaptic transmission, glutamatergic / protein tetramerization / establishment of protein localization / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / cerebral cortex development / receptor internalization / postsynaptic density membrane / modulation of chemical synaptic transmission / Schaffer collateral - CA1 synapse / terminal bouton / synaptic vesicle / long-term synaptic potentiation / synaptic vesicle membrane / amyloid-beta binding / presynapse / signaling receptor activity / growth cone / presynaptic membrane / scaffold protein binding / dendritic spine / chemical synaptic transmission / perikaryon / postsynaptic membrane / neuron projection / postsynaptic density / external side of plasma membrane / axon / neuronal cell body / synapse / dendrite / protein kinase binding / protein-containing complex binding / glutamatergic synapse / 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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