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- PDB-1mm6: crystal structure of the GluR2 ligand binding core (S1S2J) in com... -
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Basic information
Entry | Database: PDB / ID: 1mm6 | ||||||
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Title | crystal structure of the GluR2 ligand binding core (S1S2J) in complex with quisqualate in a non zinc crystal form at 2.15 angstroms resolution | ||||||
![]() | GLUTAMATE RECEPTOR 2 | ||||||
![]() | MEMBRANE PROTEIN / IONOTROPIC GLUTAMATE RECEPTOR / GluR2 / LIGAND BINDING CORE / S1S2 / FULL AGONIST / quisqualate / COMPLEX | ||||||
Function / homology | ![]() spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / immunoglobulin binding / AMPA glutamate receptor complex ...spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / immunoglobulin binding / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / extracellularly glutamate-gated ion channel activity / cellular response to glycine / asymmetric synapse / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / glutamate receptor binding / positive regulation of synaptic transmission / glutamate-gated receptor activity / presynaptic active zone membrane / response to fungicide / regulation of synaptic transmission, glutamatergic / somatodendritic compartment / cellular response to brain-derived neurotrophic factor stimulus / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cytoskeletal protein binding / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / SNARE binding / dendritic shaft / synaptic membrane / synaptic transmission, glutamatergic / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / protein tetramerization / postsynaptic density membrane / ionotropic glutamate receptor binding / Schaffer collateral - CA1 synapse / modulation of chemical synaptic transmission / establishment of protein localization / terminal bouton / receptor internalization / cerebral cortex development / synaptic vesicle membrane / synaptic vesicle / presynapse / presynaptic membrane / signaling receptor activity / amyloid-beta binding / growth cone / scaffold protein binding / chemical synaptic transmission / postsynaptic membrane / perikaryon / dendritic spine / postsynaptic density / neuron projection / axon / neuronal cell body / glutamatergic synapse / synapse / dendrite / protein-containing complex binding / endoplasmic reticulum membrane / protein kinase binding / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() | ||||||
![]() | Jin, R. / Horning, M. / Mayer, M.L. / Gouaux, E. | ||||||
![]() | ![]() Title: Mechanism of activation and selectivity in a ligand-gated ion channel: Structural and functional studies of GluR2 and quisqualate Authors: Jin, R. / Horning, M. / Mayer, M.L. / Gouaux, E. #1: ![]() Title: Mechanisms for activation and antagonism of an AMPA-sensitive glutamate receptor: Crystal structures of the GluR2 ligand binding core Authors: Armstrong, N. / Gouaux, E. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 118.4 KB | Display | ![]() |
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PDB format | ![]() | 96.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 410.6 KB | Display | ![]() |
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Full document | ![]() | 415.5 KB | Display | |
Data in XML | ![]() | 12.4 KB | Display | |
Data in CIF | ![]() | 20.6 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1mm7C ![]() 1mqiS C: citing same article ( S: Starting model for refinement |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Components
#1: Protein | Mass: 29221.682 Da / Num. of mol.: 2 / Fragment: LIGAND BINDING CORE (S1S2J) Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() ![]() References: UniProt: P19491 #2: Chemical | #3: Chemical | #4: Chemical | #5: Water | ChemComp-HOH / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.43 Å3/Da / Density % sol: 49.4 % | ||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 277 K / Method: vapor diffusion, hanging drop / pH: 5.5 Details: PEG 8K, ammonium sulfate, sodium citrate, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K | ||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Temperature: 4 ℃ / Method: vapor diffusion | ||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() |
Detector | Type: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Apr 19, 2001 / Details: mirrors |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
Reflection | Resolution: 2.15→30 Å / Num. obs: 28647 / % possible obs: 90.3 % / Observed criterion σ(F): 0 / Redundancy: 3.39 % / Biso Wilson estimate: 13.6 Å2 / Rmerge(I) obs: 0.055 |
Reflection shell | Resolution: 2.15→2.28 Å / Rmerge(I) obs: 0.129 / Num. unique all: 3221 / % possible all: 62.2 |
Reflection shell | *PLUS Lowest resolution: 2.25 Å / % possible obs: 59.9 % |
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Processing
Software |
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1MQI Resolution: 2.15→29.41 Å / Rfactor Rfree error: 0.004 / Data cutoff high absF: 2390420.2 / Data cutoff high rms absF: 2390420.2 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 47.9762 Å2 / ksol: 0.364705 e/Å3 | ||||||||||||||||||||
Displacement parameters | Biso mean: 21.2 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 2.15→29.41 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 2.15→2.28 Å / Rfactor Rfree error: 0.014 / Total num. of bins used: 6
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Xplor file |
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Refinement | *PLUS Lowest resolution: 30 Å / % reflection Rfree: 10 % / Rfactor Rwork: 0.19 | ||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||
Refine LS restraints | *PLUS
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