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(-) Description

Title :  CRYSTAL STRUCTURE OF THE GLUR6 LIGAND BINDING DOMAIN DIMER I442H K494E I749L Q753K MUTANT WITH GLUTAMATE AND NACL AT 1.37 ANGSTROM RESOLUTION
 
Authors :  C. Chaudhry, M. L. Mayer
Date :  02 Feb 09  (Deposition) - 02 Jun 09  (Release) - 02 Jun 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.37
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (1x)
Keywords :  Membrane Protein, Cell Junction, Cell Membrane, Glycoprotein, Ion Transport, Ionic Channel, Membrane, Postsynaptic Cell Membrane, Receptor, Rna Editing, Synapse, Transmembrane, Transport (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  C. Chaudhry, M. C. Weston, P. Schuck, C. Rosenmund, M. L. Mayer
Stability Of Ligand-Binding Domain Dimer Assembly Controls Kainate Receptor Desensitization.
Embo J. V. 28 1518 2009
PubMed-ID: 19339989  |  Reference-DOI: 10.1038/EMBOJ.2009.86
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - GLUTAMATE RECEPTOR, IONOTROPIC KAINATE 2
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET22B MODIFIED
    Expression System StrainORIGAMIB (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentRESIDUES 429-544, 667-806
    GeneGRIK2
    MutationYES
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116
    SynonymGLUTAMATE RECEPTOR 6, GLUR-6, GLUR6

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 6)

Asymmetric Unit (3, 6)
No.NameCountTypeFull Name
1CL1Ligand/IonCHLORIDE ION
2GLU2Mod. Amino AcidGLUTAMIC ACID
3NA3Ligand/IonSODIUM ION
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1CL-1Ligand/IonCHLORIDE ION
2GLU2Mod. Amino AcidGLUTAMIC ACID
3NA-1Ligand/IonSODIUM ION

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETYR A:61 , PRO A:89 , LEU A:90 , ALA A:91 , ARG A:96 , GLY A:141 , ALA A:142 , THR A:143 , GLU A:191 , HOH A:272 , HOH A:277 , HOH A:303 , HOH A:314BINDING SITE FOR RESIDUE GLU A 260
2AC2SOFTWARELYS A:104 , ARG A:228 , LYS B:104 , ARG B:228BINDING SITE FOR RESIDUE CL A 261
3AC3SOFTWAREGLU A:97 , ILE A:100 , ASP A:101 , MET A:223 , HOH A:390BINDING SITE FOR RESIDUE NA A 262
4AC4SOFTWAREILE A:11 , LEU A:12 , HOH A:274 , HOH A:304 , HOH A:597 , HOH A:618BINDING SITE FOR RESIDUE NA A 263
5AC5SOFTWARETYR B:61 , PRO B:89 , LEU B:90 , ALA B:91 , ARG B:96 , GLY B:141 , ALA B:142 , THR B:143 , GLU B:191 , HOH B:268 , HOH B:280 , HOH B:284 , HOH B:317BINDING SITE FOR RESIDUE GLU B 260
6AC6SOFTWAREGLU B:97 , ILE B:100 , ASP B:101 , MET B:223 , HOH B:433BINDING SITE FOR RESIDUE NA B 261

(-) SS Bonds  (2, 2)

Asymmetric Unit
No.Residues
1A:203 -A:257
2B:203 -B:257

(-) Cis Peptide Bonds  (2, 2)

Asymmetric Unit
No.Residues
1Glu A:14 -Pro A:15
2Glu B:14 -Pro B:15

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3G3I)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3G3I)

(-) Exons   (0, 0)

(no "Exon" information available for 3G3I)

(-) Sequences/Alignments

Asymmetric 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:257
 aligned with GRIK2_RAT | P42260 from UniProtKB/Swiss-Prot  Length:908

    Alignment length:379
                                   439       449       459       469       479       489       499       509       519       529       539       549       559       569       579       589       599       609       619       629       639       649       659       669       679       689       699       709       719       729       739       749       759       769       779       789       799         
            GRIK2_RAT   430 NRSLIVTTILEEPYVLFKKSDKPLYGNDRFEGYCIDLLRELSTILGFTYEIRLVEDGKYGAQDDVNGQWNGMVRELIDHKADLAVAPLAITYVREKVIDFSKPFMTLGISILYRKPNGTNPGVFSFLNPLSPDIWMYILLAYLGVSCVLFVIARFSPYEWYNPHPCNPDSDVVENNFTLLNSFWFGVGALMQQGSELMPKALSTRIVGGIWWFFTLIIISSYTANLAAFLTVERMESPIDSADDLAKQTKIEYGAVEDGATMTFFKKSKISTYDKMWAFMSSRRQSVLVKSNEEGIQRVLTSDYAFLMESTTIEFVTQRNCNLTQIGGLIDSKGYGVGTPMGSPYRDKITIAILQLQEEGKLHMMKEKWWRGNGCPEEE 808
               SCOP domains d3g3ia_ A: automated matches                                                                                                                                                                                                                                                                                                                                                                SCOP domains
               CATH domains 3g3iA01 A:3-109,A:215-258 Periplasmic binding protein-like II                                              ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------3g3iA01 A:3-109,A:215-258                   --- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeee.......ee.......hhhh.eehhhhhhhhhhhhhhh..eeeee................hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee.--..----------------------------------------------------------------------------------------------------------------------...hhhhhhh....eeeee..hhhhhhhhhh.hhhhhhhhhhhhhhhhhhee.hhhhhhhhhhhh.eeeeeehhhhhhhhhhh..eeee......eee..eee...hhhhhhhhhhhhhhhhhhhhhhhhhhhh.....--. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3g3i A   3 NRSLIVTTILEEPYVLFKKSDKPLYGNDRFEGYCIDLLRELSTHLGFTYEIRLVEDGKYGAQDDVNGQWNGMVRELIDHKADLAVAPLAITYVREEVIDFSKPFMTLGISILYRK--GT----------------------------------------------------------------------------------------------------------------------PIDSADDLAKQTKIEYGAVEDGATMTFFKKSKISTYDKMWAFMSSRRQSVLVKSNEEGIQRVLTSDYAFLMESTTIEFVTQRNCNLTQIGGLIDSKGYGVGTPMGSPYRDKITLAILKLQEEGKLHMMKEKWWRGNGCP--E 260
                                    12        22        32        42        52        62        72        82        92       102       112    |  ||-         -         -         -         -         -         -         -         -         -         -         -       122       132       142       152       162       172       182       192       202       212       222       232       242       252     |  |
                                                                                                                                            117  ||                                                                                                                    120                                                                                                                                       258  |
                                                                                                                                               118|                                                                                                                                                                                                                                                                 260
                                                                                                                                                119                                                                                                                                                                                                                                                                    

Chain B from PDB  Type:PROTEIN  Length:256
 aligned with GRIK2_RAT | P42260 from UniProtKB/Swiss-Prot  Length:908

    Alignment length:377
                                   438       448       458       468       478       488       498       508       518       528       538       548       558       568       578       588       598       608       618       628       638       648       658       668       678       688       698       708       718       728       738       748       758       768       778       788       798       
            GRIK2_RAT   429 SNRSLIVTTILEEPYVLFKKSDKPLYGNDRFEGYCIDLLRELSTILGFTYEIRLVEDGKYGAQDDVNGQWNGMVRELIDHKADLAVAPLAITYVREKVIDFSKPFMTLGISILYRKPNGTNPGVFSFLNPLSPDIWMYILLAYLGVSCVLFVIARFSPYEWYNPHPCNPDSDVVENNFTLLNSFWFGVGALMQQGSELMPKALSTRIVGGIWWFFTLIIISSYTANLAAFLTVERMESPIDSADDLAKQTKIEYGAVEDGATMTFFKKSKISTYDKMWAFMSSRRQSVLVKSNEEGIQRVLTSDYAFLMESTTIEFVTQRNCNLTQIGGLIDSKGYGVGTPMGSPYRDKITIAILQLQEEGKLHMMKEKWWRGNGCP 805
               SCOP domains d3g3ib_ B: automated matches                                                                                                                                                                                                                                                                                                                                                              SCOP domains
               CATH domains 3g3iB01 B:2-109,B:215-257 Periplasmic binding protein-like II                                               --------  --                                                                                                                      -----------------------------------------------------------------------------------------------3g3iB01 B:2-109,B:215-257                  - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeee.......ee.......hhhh.eehhhhhhhhhhhhhhh..eeeee................hhhhhhhhh....ee......hhhhhh.eee....eee.eeeeee.--..----------------------------------------------------------------------------------------------------------------------...hhhhhhh....eeeee..hhhhhhhhhh.hhhhhhhhhhhhhhhhhhee.hhhhhhhhhhhh.eeeeeehhhhhhhhhhh..eeee......eee..eee...hhhhhhhhhhhhhhhhhhhhhhhhhhhh.-... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3g3i B   2 SNRSLIVTTILEEPYVLFKKSDKPLYGNDRFEGYCIDLLRELSTHLGFTYEIRLVEDGKYGAQDDVNGQWNGMVRELIDHKADLAVAPLAITYVREEVIDFSKPFMTLGISILYRK--GT----------------------------------------------------------------------------------------------------------------------PIDSADDLAKQTKIEYGAVEDGATMTFFKKSKISTYDKMWAFMSSRRQSVLVKSNEEGIQRVLTSDYAFLMESTTIEFVTQRNCNLTQIGGLIDSKGYGVGTPMGSPYRDKITLAILKLQEEGKLHMMKEKWWRG-GCE 260
                                    11        21        31        41        51        61        71        81        91       101       111     | 119         -         -         -         -         -         -         -         -         -         -         -       121       131       141       151       161       171       181       191       201       211       221       231       241       251  | |||
                                                                                                                                             117  ||                                                                                                                    120                                                                                                                                   254 |||
                                                                                                                                                118|                                                                                                                                                                                                                                                            256||
                                                                                                                                                 119                                                                                                                                                                                                                                                             257|
                                                                                                                                                                                                                                                                                                                                                                                                                  260

   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 Unit

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3G3I)

(-) Gene Ontology  (52, 52)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (GRIK2_RAT | P42260)
molecular function
    GO:0030165    PDZ domain binding    Interacting selectively and non-covalently with a PDZ domain of a protein, a domain found in diverse signaling proteins.
    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:0008066    glutamate receptor activity    Combining with glutamate and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.
    GO:0042802    identical protein binding    Interacting selectively and non-covalently with an identical protein or proteins.
    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:0015277    kainate selective glutamate receptor activity    An ionotropic glutamate receptor activity that exhibits fast gating by glutamate, acts by opening a cation channel permeable to sodium and potassium, and for which kainate is an agonist.
    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:0042803    protein homodimerization activity    Interacting selectively and non-covalently with an identical protein to form a homodimer.
    GO:0004872    receptor activity    Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
    GO:0031624    ubiquitin conjugating enzyme binding    Interacting selectively and non-covalently with a ubiquitin conjugating enzyme, any of the E2 proteins.
    GO:0031625    ubiquitin protein ligase binding    Interacting selectively and non-covalently with a ubiquitin protein ligase enzyme, any of the E3 proteins.
biological process
    GO:0001662    behavioral fear response    An acute behavioral change resulting from a perceived external threat.
    GO:0006874    cellular calcium ion homeostasis    Any process involved in the maintenance of an internal steady state of calcium ions at the level of a cell.
    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:0060079    excitatory postsynaptic potential    A process that leads to a temporary increase in postsynaptic potential due to the flow of positively charged ions into the postsynaptic cell. The flow of ions that causes an EPSP is an excitatory postsynaptic current (EPSC) and makes it easier for the neuron to fire an action potential.
    GO:0060080    inhibitory postsynaptic potential    A process that causes a temporary decrease in postsynaptic membrane potential due to the flow of negatively charged ions into the postsynaptic cell. The flow of ions that causes an IPSP is an inhibitory postsynaptic current (IPSC) and makes it more difficult for the neuron to fire an action potential.
    GO:0006886    intracellular protein transport    The directed movement of proteins in a cell, including the movement of proteins between specific compartments or structures within a cell, such as organelles of a eukaryotic cell.
    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:0043524    negative regulation of neuron apoptotic process    Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process in neurons.
    GO:0051967    negative regulation of synaptic transmission, glutamatergic    Any process that stops, prevents, or reduces 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:0051402    neuron apoptotic process    Any apoptotic process in a neuron, the basic cellular unit of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the nervous system.
    GO:0019228    neuronal action potential    An action potential that occurs in a neuron.
    GO:0043525    positive regulation of neuron apoptotic process    Any process that activates or increases the frequency, rate or extent of cell death of neurons by apoptotic process.
    GO:0050806    positive regulation of synaptic transmission    Any process that activates or increases the frequency, rate or extent of synaptic transmission, the process of communication from a neuron to a target (neuron, muscle, or secretory cell) across a synapse.
    GO:0043113    receptor clustering    The receptor metabolic process that results in grouping of a set of receptors at a cellular location, often to amplify the sensitivity of a signaling response.
    GO:0046328    regulation of JNK cascade    Any process that modulates the frequency, rate or extent of signal transduction mediated by the JNK cascade.
    GO:0048169    regulation of long-term neuronal synaptic plasticity    A process that modulates long-term neuronal synaptic plasticity, the ability of neuronal synapses to change long-term as circumstances require. Long-term neuronal synaptic plasticity generally involves increase or decrease in actual synapse numbers.
    GO:0042391    regulation of membrane potential    Any process that modulates the establishment or extent of a membrane potential, the electric potential existing across any membrane arising from charges in the membrane itself and from the charges present in the media on either side of the membrane.
    GO:0048172    regulation of short-term neuronal synaptic plasticity    A process that modulates short-term neuronal synaptic plasticity, the ability of neuronal synapses to change in the short-term as circumstances require. Short-term neuronal synaptic plasticity generally involves increasing or decreasing synaptic sensitivity.
    GO:0035249    synaptic transmission, glutamatergic    The vesicular release of glutamate from a presynapse, across a chemical synapse, the subsequent activation of glutamate 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: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:0030424    axon    The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
    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: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:0032839    dendrite cytoplasm    All of the contents of a dendrite, excluding the surrounding plasma membrane.
    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:0005887    integral component of plasma membrane    The component of the plasma 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:0043204    perikaryon    The portion of the cell soma (neuronal cell body) that excludes the nucleus.
    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:0042734    presynaptic membrane    A specialized area of membrane of the axon terminal that faces the plasma membrane of the neuron or muscle fiber with which the axon terminal establishes a synaptic junction; many synaptic junctions exhibit structural presynaptic characteristics, such as conical, electron-dense internal protrusions, that distinguish it from the remainder of the axon plasma 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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 Related Entries

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

UniProtKB/Swiss-Prot
        GRIK2_RAT | P422601s50 1s7y 1s9t 1sd3 1tt1 1yae 2i0b 2i0c 2xxr 2xxt 2xxu 2xxv 2xxw 2xxx 2xxy 3g3f 3g3g 3g3h 3g3j 3g3k 3h6g 3h6h 3qlt 3qlu 3qlv 4bdl 4bdm 4bdn 4bdo 4bdq 4bdr 4h8i 4uqq 5cmk 5cmm 5kuf 5kuh

(-) Related Entries Specified in the PDB File

3g3f CRYSTAL STRUCTURE OF THE GLUR6 WILD TYPE LIGAND BINDING DOMAIN DIMER
3g3g CRYSTAL STRUCTURE OF THE GLUR6 K665R MUTANT LIGAND BINDING DOMAIN DIMER
3g3h CRYSTAL STRUCTURE OF THE GLUR6 K665R I749L Q753K MUTANT LIGAND BINDING DOMAIN DIMER
3g3j CRYSTAL STRUCTURE OF THE GLUR6 I442H K494E K665R I749L Q753K MUTANT LIGAND BINDING DOMAIN DIMER
3g3k CRYSTAL STRUCTURE OF THE GLUR6 I442H K494E K665R I749L Q753K E757Q MUTANT LIGAND BINDING DOMAIN DIMER