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(-) Description

Title :  X-RAY STRUCTURE OF IGLUR4 FLIP LIGAND-BINDING CORE (S1S2) IN COMPLEX WITH (S)-GLUTAMATE AT 1.40A RESOLUTION
 
Authors :  C. Kasper, K. Frydenvang, P. Naur, M. Gajhede, J. S. Kastrup
Date :  18 Nov 08  (Deposition) - 09 Dec 08  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.40
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Ionotropic Glutamate Receptors, Iglur4, Flip, Ligand-Binding Core, Agonist Complex, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. Kasper, K. Frydenvang, P. Naur, M. Gajhede, D. S. Pickering, J. S. Kastrup
Molecular Mechanism Of Agonist Recognition By The Ligand-Binding Core Of The Ionotropic Glutamate Receptor 4
Febs Lett. V. 582 4089 2008
PubMed-ID: 19022251  |  Reference-DOI: 10.1016/J.FEBSLET.2008.11.005

(-) Compounds

Molecule 1 - GLUTAMATE RECEPTOR 4
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-32A(+)
    Expression System Strain: ORIGAMI 2
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: IGLUR4 FLIP LIGAND-BINDING CORE (S1S2)
    Organism Common: RAT
    Organism Scientific: RATTUS NORVEGICUS
    Organism Taxid: 10116
    Synonym: IONOTROPIC GLUTAMATE RECEPTOR 4, GLUR-4, GLUR4, GLUR-D, GLUTAMATE RECEPTOR IONOTROPIC, AMPA 4, AMPA-SELECTIVE GLUTAMATE RECEPTOR 4

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 19)

Asymmetric/Biological Unit (3, 19)
No.NameCountTypeFull Name
1GLU2Mod. Amino AcidGLUTAMIC ACID
2GOL9Ligand/IonGLYCEROL
3SO48Ligand/IonSULFATE ION

(-) Sites  (19, 19)

Asymmetric Unit (19, 19)
No.NameEvidenceResiduesDescription
01AC1SOFTWARETYR A:59 , PRO A:87 , LEU A:88 , THR A:89 , ARG A:94 , GLY A:139 , SER A:140 , THR A:141 , GLU A:191 , TYR A:218 , HOH A:275 , HOH A:277 , HOH A:563BINDING SITE FOR RESIDUE GLU A 270
02AC2SOFTWARETYR B:59 , PRO B:87 , LEU B:88 , THR B:89 , ARG B:94 , GLY B:139 , SER B:140 , THR B:141 , GLU B:191 , HOH B:267 , HOH B:286 , HOH B:314BINDING SITE FOR RESIDUE GLU B 271
03AC3SOFTWARESER A:138 , LYS A:142 , ARG A:146 , HOH A:329 , HOH A:395 , HOH A:459 , HOH A:474BINDING SITE FOR RESIDUE SO4 A 261
04AC4SOFTWAREASP B:137 , SER B:138 , LYS B:142 , ARG B:146 , HOH B:461 , HOH B:576 , HOH B:659 , HOH B:1206BINDING SITE FOR RESIDUE SO4 B 261
05AC5SOFTWAREHIS B:44 , LYS B:238 , HOH B:1111BINDING SITE FOR RESIDUE SO4 B 262
06AC6SOFTWAREGLY A:1 , ARG A:2 , HOH A:524 , HOH A:584BINDING SITE FOR RESIDUE SO4 A 262
07AC7SOFTWAREGLY B:1 , ARG B:2 , HOH B:336 , HOH B:663BINDING SITE FOR RESIDUE SO4 B 263
08AC8SOFTWAREGLU A:95 , ASP A:99 , PHE A:100 , ARG A:229 , HOH A:510 , HOH A:683 , HOH A:804 , LYS B:102 , ASN B:233BINDING SITE FOR RESIDUE SO4 A 263
09AC9SOFTWARELYS A:102 , ASN A:233 , HOH A:683 , GLU B:95 , ASP B:99 , PHE B:100 , ARG B:229 , HOH B:472 , HOH B:597BINDING SITE FOR RESIDUE SO4 B 264
10BC1SOFTWAREHIS B:21 , GLU B:22 , LYS B:29BINDING SITE FOR RESIDUE SO4 B 265
11BC2SOFTWAREARG A:146 , TRP A:157 , ARG A:161 , HOH A:380BINDING SITE FOR RESIDUE GOL A 300
12BC3SOFTWAREASN A:212 , ASP A:214 , SER A:215 , HOH A:364 , HOH A:466 , ASP B:246BINDING SITE FOR RESIDUE GOL A 301
13BC4SOFTWAREASP A:246 , ASN B:212 , LEU B:213 , ASP B:214 , SER B:215 , HOH B:374 , HOH B:474BINDING SITE FOR RESIDUE GOL B 302
14BC5SOFTWARETYR A:17 , HIS A:21 , GLU A:22 , LYS A:29BINDING SITE FOR RESIDUE GOL A 304
15BC6SOFTWAREARG B:146 , TRP B:157 , ARG B:161 , HOH B:471BINDING SITE FOR RESIDUE GOL B 306
16BC7SOFTWAREGLU B:25 , GLY B:26 , LYS B:29 , LYS B:50 , HOH B:714BINDING SITE FOR RESIDUE GOL B 308
17BC8SOFTWAREVAL B:97 , GLY B:116 , PRO B:118 , HOH B:284 , HOH B:399 , HOH B:404 , HOH B:425BINDING SITE FOR RESIDUE GOL B 310
18BC9SOFTWAREGLU B:40 , LYS B:43 , HIS B:44 , LEU B:239 , ALA B:242 , VAL B:244 , HOH B:596BINDING SITE FOR RESIDUE GOL B 312
19CC1SOFTWAREGLU A:123 , ILE A:150 , VAL A:152 , HOH A:434 , HOH A:655 , HOH A:815BINDING SITE FOR RESIDUE GOL A 313

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:204 -A:259
2B:204 -B:259

(-) Cis Peptide Bonds  (7, 7)

Asymmetric/Biological Unit
No.Residues
1Gly A:1 -Arg A:2
2Ser A:12 -Pro A:13
3Glu A:164 -Pro A:165
4Lys A:202 -Pro A:203
5Ser B:12 -Pro B:13
6Glu B:164 -Pro B:165
7Lys B:202 -Pro B:203

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3FAS)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3FAS)

(-) Exons   (0, 0)

(no "Exon" information available for 3FAS)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:261
 aligned with GRIA4_RAT | P19493 from UniProtKB/Swiss-Prot  Length:902

    Alignment length:393
                                   423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593       603       613       623       633       643       653       663       673       683       693       703       713       723       733       743       753       763       773       783       793       803   
            GRIA4_RAT   414 NRTVVVTTIMESPYVMYKKNHEMFEGNDKYEGYCVDLASEIAKHIGIKYKIAIVPDGKYGARDADTKIWNGMVGELVYGKAEIAIAPLTITLVREEVIDFSKPFMSLGISIMIKKPQKSKPGVFSFLDPLAYEIWMCIVFAYIGVSVVLFLVSRFSPYEWHTEEPEDGKEGPSDQPPNEFGIFNSLWFSLGAFMQQGCDISPRSLSGRIVGGVWWFFTLIIISSYTANLAAFLTVERMVSPIESAEDLAKQTEIAYGTLDSGSTKEFFRRSKIAVYEKMWTYMRSAEPSVFTRTTAEGVARVRKSKGKFAFLLESTMNEYTEQRKPCDTMKVGGNLDSKGYGVATPKGSSLGNAVNLAVLKLNEQGLLDKLKNKWWYDKGECGSGGGDSKDKT 806
               SCOP domains d3fasa_ A: automated matches                                                                                                                                                                                                                                                                                                                                                                              SCOP domains
               CATH domains -3fasA01 A:2-107,A:217-256 Periplasmic binding protein-like II                                             ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------3fasA01 A:2-107,A:217-256               -------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeee.......ee..hhhhhhhhh.eehhhhhhhhhhhhhhh.eeeeee................hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee..---------------------------------------------------------------------------------------------------------------------------....hhhhhhh....eee....hhhhhhhhhh.hhhhhhhhhhhhhh.......hhhhhhhhhhhh...eeeeeehhhhhhhhh.....eeee......eee..eee....hhhhhhhhhhhhhhhhhhhhhhhhhhh......---------. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3fas A   1 GRTVVVTTIMESPYVMYKKNHEMFEGNDKYEGYCVDLASEIAKHIGIKYKIAIVPDGKYGARDADTKIWNGMVGELVYGKAEIAIAPLTITLVREEVIDFSKPFMSLGISIMIKKG---------------------------------------------------------------------------------------------------------------------------TPIESAEDLAKQTEIAYGTLDSGSTKEFFRRSKIAVYEKMWTYMRSAEPSVFTRTTAEGVARVRKSKGKFAFLLESTMNEYIEQRKPCDTMKVGGNLDSKGYGVATPKGSSLRTPVNLAVLKLSEAGVLDKLKNKWWYDKGECG---------E 270
                                    10        20        30        40        50        60        70        80        90       100       110     |   -         -         -         -         -         -         -         -         -         -         -         -       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257  |      -  |
                                                                                                                                             116                                                                                                                         117                                                                                                                                            260       270


Chain B from PDB  Type:PROTEIN  Length:261
 aligned with GRIA4_RAT | P19493 from UniProtKB/Swiss-Prot  Length:902

    Alignment length:384
                                   423       433       443       453       463       473       483       493       503       513       523       533       543       553       563       573       583       593       603       613       623       633       643       653       663       673       683       693       703       713       723       733       743       753       763       773       783       793    
            GRIA4_RAT   414 NRTVVVTTIMESPYVMYKKNHEMFEGNDKYEGYCVDLASEIAKHIGIKYKIAIVPDGKYGARDADTKIWNGMVGELVYGKAEIAIAPLTITLVREEVIDFSKPFMSLGISIMIKKPQKSKPGVFSFLDPLAYEIWMCIVFAYIGVSVVLFLVSRFSPYEWHTEEPEDGKEGPSDQPPNEFGIFNSLWFSLGAFMQQGCDISPRSLSGRIVGGVWWFFTLIIISSYTANLAAFLTVERMVSPIESAEDLAKQTEIAYGTLDSGSTKEFFRRSKIAVYEKMWTYMRSAEPSVFTRTTAEGVARVRKSKGKFAFLLESTMNEYTEQRKPCDTMKVGGNLDSKGYGVATPKGSSLGNAVNLAVLKLNEQGLLDKLKNKWWYDKGECGS 797
               SCOP domains d3fasb_ B: automated matches                                                                                                                                                                                                                                                                                                                                                                     SCOP domains
               CATH domains -3fasB01 B:2-107,B:217-256 Periplasmic binding protein-like II                                             ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------3fasB01 B:2-107,B:217-256               ----- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeeee.......ee..hhhhhhhhh.eehhhhhhhhhhhhhhh.eeeeee................hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee..---------------------------------------------------------------------------------------------------------------------------....hhhhhhh....eeeee..hhhhhhhhhh.hhhhhhhhhhhhhh....ee.hhhhhhhhhhhh...eeeeeehhhhhhhh......eeee......eee..eee....hhhhhhhhhhhhhhhhhhhhhhhhhhh....... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3fas B   1 GRTVVVTTIMESPYVMYKKNHEMFEGNDKYEGYCVDLASEIAKHIGIKYKIAIVPDGKYGARDADTKIWNGMVGELVYGKAEIAIAPLTITLVREEVIDFSKPFMSLGISIMIKKG---------------------------------------------------------------------------------------------------------------------------TPIESAEDLAKQTEIAYGTLDSGSTKEFFRRSKIAVYEKMWTYMRSAEPSVFTRTTAEGVARVRKSKGKFAFLLESTMNEYIEQRKPCDTMKVGGNLDSKGYGVATPKGSSLRTPVNLAVLKLSEAGVLDKLKNKWWYDKGECGE 271
                                    10        20        30        40        50        60        70        80        90       100       110     |   -         -         -         -         -         -         -         -         -         -         -         -       117       127       137       147       157       167       177       187       197       207       217       227       237       247       257  ||
                                                                                                                                             116                                                                                                                         117                                                                                                                                            260|
                                                                                                                                                                                                                                                                                                                                                                                                                         271
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3FAS)

(-) Gene Ontology  (29, 29)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (GRIA4_RAT | P19493)
molecular function
    GO:0004971    AMPA glutamate receptor activity    An ionotropic glutamate receptor activity that exhibits fast gating by glutamate and acts by opening a cation channel permeable to sodium, potassium, and, in the absence of a GluR2 subunit, calcium.
    GO:0005234    extracellular-glutamate-gated ion channel activity    Enables the transmembrane transfer of an ion by a channel that opens when extracellular glutamate has been bound by the channel complex or one of its constituent parts.
    GO:0005216    ion channel activity    Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size).
    GO:0004970    ionotropic glutamate receptor activity    Catalysis of the transmembrane transfer of an ion by a channel that opens when glutamate has been bound by the channel complex or one of its constituent parts.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0004872    receptor activity    Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
biological process
    GO:0007268    chemical synaptic transmission    The vesicular release of classical neurotransmitter molecules from a presynapse, across a chemical synapse, the subsequent activation of neurotransmitter receptors at the postsynapse of a target cell (neuron, muscle, or secretory cell) and the effects of this activation on the postsynaptic membrane potential and ionic composition of the postsynaptic cytosol. This process encompasses both spontaneous and evoked release of neurotransmitter and all parts of synaptic vesicle exocytosis. Evoked transmission starts with the arrival of an action potential at the presynapse.
    GO:0034220    ion transmembrane transport    A process in which an ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0035235    ionotropic glutamate receptor signaling pathway    A series of molecular signals initiated by glutamate binding to a glutamate receptor on the surface of the target cell, followed by the movement of ions through a channel in the receptor complex. Ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0050804    modulation of chemical synaptic transmission    Any process that modulates the frequency or amplitude of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse. Amplitude, in this case, refers to the change in postsynaptic membrane potential due to a single instance of synaptic transmission.
    GO:0051968    positive regulation of synaptic transmission, glutamatergic    Any process that activates, maintains or increases the frequency, rate or extent of glutamatergic synaptic transmission, the process of communication from a neuron to another neuron across a synapse using the neurotransmitter glutamate.
    GO:0050803    regulation of synapse structure or activity    Any process that modulates the physical form or the activity of a synapse, the junction between a neuron and a target (neuron, muscle, or secretory cell).
    GO:0060992    response to fungicide    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a fungicide stimulus. Fungicides are chemicals used to kill fungi.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0032281    AMPA glutamate receptor complex    An assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. The AMPA receptors mediate fast synaptic transmission in the CNS and are composed of subunits GluR1-4, products from separate genes. These subunits have an extracellular N-terminus and an intracellular C-terminus.
    GO:0030054    cell junction    A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
    GO:0042995    cell projection    A prolongation or process extending from a cell, e.g. a flagellum or axon.
    GO:0030425    dendrite    A neuron projection that has a short, tapering, often branched, morphology, receives and integrates signals from other neurons or from sensory stimuli, and conducts a nerve impulse towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0008328    ionotropic glutamate receptor complex    A multimeric assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand-gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex.
    GO:0032983    kainate selective glutamate receptor complex    An assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. Kainate receptors are multimeric assemblies of GluK1-3 (also called GluR5-7), GluK4 (KA1) and GluK5 (KA2) subunits.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0043025    neuronal cell body    The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
    GO:0014069    postsynaptic density of dendrite    An electron dense network of proteins within and adjacent to the postsynaptic membrane of the dendrite of asymetric synapses. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
    GO:0045211    postsynaptic membrane    A specialized area of membrane facing the presynaptic membrane on the tip of the nerve ending and separated from it by a minute cleft (the synaptic cleft). Neurotransmitters cross the synaptic cleft and transmit the signal to the postsynaptic membrane.
    GO:0045202    synapse    The junction between a nerve fiber of one neuron and another neuron, muscle fiber or glial cell. As the nerve fiber approaches the synapse it enlarges into a specialized structure, the presynaptic nerve ending, which contains mitochondria and synaptic vesicles. At the tip of the nerve ending is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic nerve ending secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.
    GO:0043195    terminal bouton    Terminal inflated portion of the axon, containing the specialized apparatus necessary to release neurotransmitters. The axon terminus is considered to be the whole region of thickening and the terminal bouton is a specialized region of it.

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  GRIA4_RAT | P19493
    Protein Disorder Prediction: DisEMBL | FoldIndex | GLOBPLOT (for more information see DisProt)

 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        GRIA4_RAT | P19493: 3en3 3epe 3fat 3kei 3kfm 4gpa 5fwx

(-) Related Entries Specified in the PDB File

1ftj CRYSTAL STRUCTURE OF THE IGLUR2 FLOP LIGAND-BINDING CORE (S1S2J) IN COMPLEX WITH GLUTAMATE AT 1.9A RESOLUTION.
1ftm CRYSTAL STRUCTURE OF THE IGLUR2 FLOP LIGAND-BINDING CORE (S1S2J) IN COMPLEX WITH AMPA AT 1.7A RESOLUTION.
2uxa CRYSTAL STRUCTURE OF THE IGLUR2 FLIP LIGAND-BINDING CORE (S1S2J) IN COMPLEX WITH GLUTAMATE AT 2.38A RESOLUTION.