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- PDB-1p1o: Crystal structure of the GluR2 ligand-binding core (S1S2J) mutant... -

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Basic information

Entry
Database: PDB / ID: 1p1o
TitleCrystal structure of the GluR2 ligand-binding core (S1S2J) mutant L650T in complex with quisqualate
ComponentsGlutamate receptor 2
KeywordsMEMBRANE PROTEIN / ionotropic glutamate receptor
Function / homology
Function and homology information


spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / ligand-gated monoatomic cation channel activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity ...spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / ligand-gated monoatomic cation channel activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / extracellularly glutamate-gated ion channel activity / immunoglobulin binding / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / 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 / extracellular ligand-gated monoatomic ion channel activity / glutamate-gated receptor activity / response to fungicide / glutamate-gated calcium ion channel activity / presynaptic active zone membrane / regulation of synaptic transmission, glutamatergic / ionotropic glutamate receptor binding / somatodendritic compartment / dendrite membrane / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / cytoskeletal protein binding / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / SNARE binding / dendritic shaft / synaptic transmission, glutamatergic / synaptic membrane / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / protein tetramerization / postsynaptic density membrane / establishment of protein localization / modulation of chemical synaptic transmission / terminal bouton / Schaffer collateral - CA1 synapse / receptor internalization / cerebral cortex development / synaptic vesicle membrane / synaptic vesicle / presynapse / signaling receptor activity / presynaptic membrane / amyloid-beta binding / growth cone / scaffold protein binding / chemical synaptic transmission / perikaryon / postsynaptic membrane / dendritic spine / postsynaptic density / neuron projection / axon / neuronal cell body / glutamatergic synapse / dendrite / synapse / protein-containing complex binding / protein kinase binding / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / plasma membrane
Similarity search - Function
Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. / Receptor, ligand binding region / Receptor family ligand binding region ...Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like II / Periplasmic binding protein-like I / D-Maltodextrin-Binding Protein; domain 2 / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Chem-QUS / Glutamate receptor 2
Similarity search - Component
Biological speciesRattus norvegicus (Norway rat)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.6 Å
AuthorsArmstrong, N. / Mayer, M.L. / Gouaux, E.
CitationJournal: Proc.Natl.Acad.Sci.USA / Year: 2003
Title: Tuning activation of the AMPA-sensitive GluR2 ion channel by genetic adjustment of agonist-induced conformational changes.
Authors: Armstrong, N. / Mayer, M. / Gouaux, E.
History
DepositionApr 13, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 10, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Aug 16, 2017Group: Refinement description / Source and taxonomy / Category: entity_src_gen / software
Revision 1.4Oct 27, 2021Group: Database references / Derived calculations / Category: database_2 / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.5Oct 16, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / pdbx_entry_details / pdbx_modification_feature
Remark 300 BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 ... BIOMOLECULE: 1 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT WHICH CONSISTS OF 1 CHAIN(S). SEE REMARK 350 FOR INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). NOTE THAT COORDINATES FOR ONE DIMER OF A COMPLETE TETRAMERIC MULTIMER REPRESENTING THE KNOWN BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS GIVEN IN REMARK 350. BOTH NON-CRYSTALLOGRAPHIC AND CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.
Remark 999SEQUENCE The native GLUR-2 is a membrane protein. The protein crystallized by the author is the ...SEQUENCE The native GLUR-2 is a membrane protein. The protein crystallized by the author is the extracellular ligand binding domain of GLUR-2. Transmembrane regions were genetically removed and replaced with a Gly-Thr linker. The sequence, as a result, matches discontinuously with the reference database.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Glutamate receptor 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,5914
Polymers29,2101
Non-polymers3813
Water3,963220
1
A: Glutamate receptor 2
hetero molecules

A: Glutamate receptor 2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)59,1828
Polymers58,4192
Non-polymers7636
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_555-x,-y,z1
Unit cell
Length a, b, c (Å)63.978, 90.865, 47.311
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212

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Components

#1: Protein Glutamate receptor 2 / GluR-2 / GluR-B / GluR-K2 / Glutamate receptor ionotropic / AMPA 2


Mass: 29209.627 Da / Num. of mol.: 1 / Fragment: ligand binding core (S1S2J) / Mutation: L138T
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: GRIA2 OR GLUR2 / Plasmid: pETGQ / Species (production host): Escherichia coli / Production host: Escherichia coli BL21 (bacteria) / Strain (production host): BL21 / References: UniProt: P19491
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-QUS / (S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID / QUISQUALATE


Mass: 189.126 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C5H7N3O5 / Comment: agonist*YM
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 220 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.23 Å3/Da / Density % sol: 44.37 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 6
Details: PEG4000, ammonium sulfate, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal grow
*PLUS
Temperature: 4 ℃ / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
114-18 %PEG40001reservoir
20.2-0.4 Mammonium sulfate1reservoir

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Data collection

DiffractionMean temperature: 110 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X4A / Wavelength: 0.92 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Mar 7, 2001
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.92 Å / Relative weight: 1
ReflectionResolution: 1.6→40 Å / Num. all: 38106 / Num. obs: 36062 / % possible obs: 97.1 % / Observed criterion σ(I): -3 / Redundancy: 3.79 % / Rmerge(I) obs: 0.079 / Net I/σ(I): 19.1
Reflection shellResolution: 1.6→1.65 Å / Rmerge(I) obs: 0.097 / % possible all: 85.5
Reflection shell
*PLUS
% possible obs: 85.5 %

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
X-PLOR3.851refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.6→6 Å / σ(F): 2 / Stereochemistry target values: Engh & Huber
RfactorNum. reflectionSelection details
Rfree0.235 3552 RANDOM
Rwork0.204 --
all0.224 36003 -
obs0.207 35026 -
Refinement stepCycle: LAST / Resolution: 1.6→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1962 0 23 220 2205
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_angle_deg1.434
X-RAY DIFFRACTIONx_bond_d0.01
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.0052
X-RAY DIFFRACTIONx_angle_deg1.191

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