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- PDB-1m5d: X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J-Y702F) IN... -
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Basic information
Entry | Database: PDB / ID: 1m5d | ||||||
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Title | X-RAY STRUCTURE OF THE GLUR2 LIGAND BINDING CORE (S1S2J-Y702F) IN COMPLEX WITH Br-HIBO AT 1.73 A RESOLUTION | ||||||
![]() | Glutamate receptor 2 | ||||||
![]() | MEMBRANE PROTEIN / Ionotropic glutamate receptor / GluR2 / ligand binding core / agonist complex | ||||||
Function / homology | ![]() spine synapse / dendritic spine neck / dendritic spine head / 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 / kainate selective glutamate receptor activity ...spine synapse / dendritic spine neck / dendritic spine head / 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 / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / immunoglobulin binding / asymmetric synapse / regulation of receptor recycling / glutamate receptor binding / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of synaptic transmission / response to fungicide / regulation of synaptic transmission, glutamatergic / glutamate-gated receptor activity / cytoskeletal protein binding / presynaptic active zone membrane / extracellular ligand-gated monoatomic ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / somatodendritic compartment / ionotropic glutamate receptor binding / dendrite membrane / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / SNARE binding / dendritic shaft / PDZ domain binding / synaptic transmission, glutamatergic / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / protein tetramerization / synaptic membrane / establishment of protein localization / postsynaptic density membrane / modulation of chemical synaptic transmission / cerebral cortex development / receptor internalization / Schaffer collateral - CA1 synapse / terminal bouton / synaptic vesicle membrane / synaptic vesicle / signaling receptor activity / presynapse / amyloid-beta binding / presynaptic membrane / growth cone / scaffold protein binding / chemical synaptic transmission / dendritic spine / perikaryon / postsynaptic membrane / neuron projection / postsynaptic density / axon / neuronal cell body / synapse / dendrite / protein-containing complex binding / protein kinase binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / plasma membrane Similarity search - Function | ||||||
Biological species | ![]() ![]() | ||||||
Method | ![]() ![]() | ||||||
![]() | Hogner, A. / Kastrup, J.S. / Jin, R. / Liljefors, T. / Mayer, M.L. / Egebjerg, J. / Larsen, I.K. / Gouaux, E. | ||||||
![]() | ![]() Title: Structural Basis for AMPA Receptor Activation and Ligand Selectivity: Crystal Structures of Five Agonist Complexes with the GluR2 Ligand-binding Core Authors: Hogner, A. / Kastrup, J.S. / Jin, R. / Liljefors, T. / Mayer, M.L. / Egebjerg, J. / Larsen, I.K. / 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. #2: ![]() Title: Mechanism of glutamate receptor desensitization. Authors: Sun, Y. / Olson, R. / Horning, M. / Armstrong, N. / Mayer, M. / Gouaux, E. #3: ![]() Title: Probing the ligand binding domain of the GluR2 receptor by proteolysis and deletion mutagenesis defines domain boundaries and yields a crystallizable construct. Authors: Chen, G.Q. / Sun, Y. / Jin, R. / Gouaux, E. | ||||||
History |
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Remark 999 | Sequence Native GluR2 is a membrane protein. The protein crystallized is the extracellular ligand ...Sequence Native GluR2 is a membrane protein. The protein crystallized is the extracellular ligand binding domain of GluR2. Transmembrane regions were genetically removed and replaced with a GLY-THR linker (residues 118 and 119). Therefore, the sequence matches discontinuously with the reference database (413-527, 653-796). Residues GLY1 and ALA2 are cloning artifacts. The engineered mutation is listed by the author as Y702F which corresponds to Y723F in the database sequence. The author numbered the sequence according to the predicted mature GluR2 sequence. Therefore, the signal sequence (residues 1-21) are not included in the author's sequence numbering. |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 74.2 KB | Display | ![]() |
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PDB format | ![]() | 53.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 757.2 KB | Display | ![]() |
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Full document | ![]() | 759.5 KB | Display | |
Data in XML | ![]() | 15.2 KB | Display | |
Data in CIF | ![]() | 22.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1m5bC ![]() 1m5cSC ![]() 1m5eC ![]() 1m5fC 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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1 | ![]()
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Unit cell |
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Components on special symmetry positions |
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Details | The biological assembly is a dimer. The dimer of chain A can be generated by the two fold axis: -x, -y, z. |
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Components
#1: Protein | Mass: 29205.682 Da / Num. of mol.: 1 / Fragment: flop ligand binding core (S1S2J-Y702F) / Mutation: Y190F Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() | ||||||
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#2: Chemical | #3: Chemical | ChemComp-BRH / ( | #4: Water | ChemComp-HOH / | Has protein modification | Y | |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.28 Å3/Da / Density % sol: 45.96 % | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 279 K / Method: vapor diffusion, hanging drop / pH: 4.5 Details: PEG 3350, Li2SO4, phosphate-citrate, pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 279K | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Temperature: 4 ℃ / pH: 7 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 110 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: MARRESEARCH / Detector: CCD / Date: Aug 15, 2001 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.802 Å / Relative weight: 1 |
Reflection | Resolution: 1.73→20 Å / Num. all: 27834 / Num. obs: 27589 / % possible obs: 97.9 % / Observed criterion σ(I): -3 / Redundancy: 4.8 % / Biso Wilson estimate: 20.9 Å2 / Rmerge(I) obs: 0.072 / Net I/σ(I): 14.3 |
Reflection shell | Resolution: 1.73→1.77 Å / Rmerge(I) obs: 0.393 / Mean I/σ(I) obs: 4 / Num. unique all: 1829 / % possible all: 97.4 |
Reflection | *PLUS Lowest resolution: 20 Å / Num. obs: 27834 |
Reflection shell | *PLUS % possible obs: 97.4 % |
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Processing
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Refinement | Method to determine structure: Difference Fourier Starting model: PDB entry 1M5C (S1S2J:Br-HIBO). Resolution: 1.73→19.59 Å / Rfactor Rfree error: 0.006 / Data cutoff high absF: 1249977 / Data cutoff high rms absF: 1249977 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber Details: Residues 1-3 and 262-263 were not located in the electron density map. The side chains of the following residues are not fully defined: LYS A4, LYS A21, LYS A50, LYS A69, ARG A172, LYS A258
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Solvent computation | Solvent model: FLAT MODEL / Bsol: 63.7557 Å2 / ksol: 0.445437 e/Å3 | ||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 24.2 Å2
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Refine analyze |
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Refinement step | Cycle: LAST / Resolution: 1.73→19.59 Å
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Refine LS restraints |
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LS refinement shell | Resolution: 1.73→1.84 Å / Rfactor Rfree error: 0.018 / Total num. of bins used: 6
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Xplor file | Serial no: 1 / Param file: PROTEIN_REP.PARAM / Topol file: PROTEIN.TOP | ||||||||||||||||||||||||||||||||||||
Refinement | *PLUS Lowest resolution: 20 Å / % reflection Rfree: 5 % / Rfactor Rfree: 0.214 | ||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS | ||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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