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(-) Description

Title :  CRYSTAL STRUCTURE OF THE NR1/NR2A LIGAND-BINDING CORES COMPLEX
 
Authors :  H. Furukawa, S. K. Singh, R. Mancusso, E. Gouaux
Date :  30 Jun 05  (Deposition) - 15 Nov 05  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Protein-Ligand Complex, Metal Transport, Membrane Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  H. Furukawa, S. K. Singh, R. Mancusso, E. Gouaux
Subunit Arrangement And Function In Nmda Receptors
Nature V. 438 185 2005
PubMed-ID: 16281028  |  Reference-DOI: 10.1038/NATURE04089
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - N-METHYL-D-ASPARTATE RECEPTOR NMDAR1-4A SUBUNIT
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET22B
    Expression System StrainORIGAMIB (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentS1S2 LIGAND-BINDING CORE
    Organism CommonNORWAY RAT
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116
    Other DetailsCONSTRUCT OF RESIDUES 394-544 AND 663-800 OF GB AAB50932
    SynonymNMDA RECEPTOR NR1 SUBUNIT
 
Molecule 2 - N-METHYL-D-ASPARTATE RECEPTOR NMDAR2A SUBUNIT
    ChainsB
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET22B
    Expression System StrainORIGAMIB (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentS1S2 LIGAND-BINDING CORE
    Organism CommonNORWAY RAT
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116
    Other DetailsCONSTRUCT OF RESIDUES 401-539 AND 661-802 OF GB AAB58801
    SynonymNMDA RECPTOR NR2A SUBUNIT

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1GLU1Mod. Amino AcidGLUTAMIC ACID
2GLY1Mod. Amino AcidGLYCINE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:92 , PRO A:124 , LEU A:125 , THR A:126 , ARG A:131 , SER A:179 , SER A:180 , ASP A:224BINDING SITE FOR RESIDUE GLY A 1001
2AC2SOFTWAREHIS B:88 , SER B:114 , THR B:116 , ARG B:121 , GLY B:172 , SER B:173 , THR B:174 , TYR B:214 , ASP B:215 , HOH B:2004 , HOH B:2019BINDING SITE FOR RESIDUE GLU B 2002

(-) SS Bonds  (5, 5)

Asymmetric/Biological Unit
No.Residues
1A:28 -A:62
2A:44 -A:63
3B:32 -B:58
4B:39 -B:59
5B:229 -B:284

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Glu A:14 -Pro A:15
2Ala B:17 -Pro B:18

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2A5T)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2A5T)

(-) Exons   (9, 9)

Asymmetric/Biological Unit (9, 9)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENSRNOT000000492971ENSRNOE00000310130chr3:3480369-3479901469NMDZ1_RAT1-86860--
1.2ENSRNOT000000492972ENSRNOE00000111277chr3:3478540-3478406135NMDZ1_RAT87-131450--
1.3ENSRNOT000000492973ENSRNOE00000111402chr3:3474895-3474719177NMDZ1_RAT132-190590--
1.5ENSRNOT000000492975ENSRNOE00000111535chr3:3471911-3471811101NMDZ1_RAT191-224340--
1.6ENSRNOT000000492976ENSRNOE00000114140chr3:3466978-3466857122NMDZ1_RAT224-265420--
1.7ENSRNOT000000492977ENSRNOE00000114576chr3:3466784-3466610175NMDZ1_RAT265-323590--
1.8ENSRNOT000000492978ENSRNOE00000111937chr3:3465637-3465493145NMDZ1_RAT323-371490--
1.9ENSRNOT000000492979ENSRNOE00000112066chr3:3465395-346531284NMDZ1_RAT372-399281A:4-74
1.10ENSRNOT0000004929710ENSRNOE00000112201chr3:3461058-3460917142NMDZ1_RAT400-447481A:8-4841
1.11ENSRNOT0000004929711ENSRNOE00000112339chr3:3460834-3460707128NMDZ1_RAT447-489431A:58-9740
1.12ENSRNOT0000004929712ENSRNOE00000112471chr3:3460461-3460297165NMDZ1_RAT490-544551A:98-152 (gaps)55
1.13ENSRNOT0000004929713ENSRNOE00000112596chr3:3460222-3460104119NMDZ1_RAT545-584401A:153-1542
1.14ENSRNOT0000004929714ENSRNOE00000112738chr3:3459988-3459876113NMDZ1_RAT584-622390--
1.15ENSRNOT0000004929715ENSRNOE00000112879chr3:3459799-3459651149NMDZ1_RAT622-671501A:155-1639
1.16ENSRNOT0000004929716ENSRNOE00000113022chr3:3459544-3459387158NMDZ1_RAT672-724531A:164-21653
1.17ENSRNOT0000004929717ENSRNOE00000115047chr3:3459215-3459054162NMDZ1_RAT724-778551A:216-27055
1.18ENSRNOT0000004929718ENSRNOE00000331986chr3:3458645-3458536110NMDZ1_RAT778-815381A:270-1001 (gaps)20
1.19ENSRNOT0000004929719ENSRNOE00000347456chr3:3458452-3458307146NMDZ1_RAT815-863490--
1.20ENSRNOT0000004929720ENSRNOE00000118114chr3:3457054-3456944111NMDZ1_RAT864-900370--
1.21ENSRNOT0000004929721ENSRNOE00000259023chr3:3455031-34537841248NMDZ1_RAT901-938380--

(-) 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:272
 aligned with NMDZ1_RAT | P35439 from UniProtKB/Swiss-Prot  Length:938

    Alignment length:402
                                   405       415       425       435       445       455       465       475       485       495       505       515       525       535       545       555       565       575       585       595       605       615       625       635       645       655       665       675       685       695       705       715       725       735       745       755       765       775       785       795  
           NMDZ1_RAT    396 TRLKIVTIHQEPFVYVKPTMSDGTCKEEFTVNGDPVKKVICTGPNDTSPGSPRHTVPQCCYGFCIDLLIKLARTMNFTYEVHLVADGKFGTQERVNNSNKKEWNGMMGELLSGQADMIVAPLTINNERAQYIEFSKPFKYQGLTILVKKEIPRSTLDSFMQPFQSTLWLLVGLSVHVVAVMLYLLDRFSPFGRFKVNSEEEEEDALTLSSAMWFSWGVLLNSGIGEGAPRSFSARILGMVWAGFAMIIVASYTANLAAFLVLDRPEERITGINDPRLRNPSDKFIYATVKQSSVDIYFRRQVELSTMYRHMEKHNYESAAEAIQAVRDNKLHAFIWDSAVLEFEASQKCDLVTTGELFFRSGFGIGMRKDSPWKQNVSLSILKSHENGFMEDLDKTWVRYQE  797
               SCOP domains d2a5ta_ A: N-methyl-D-aspartate receptor subu         nit 1                                                                                                                                                                                                                                                                                                                                                        SCOP domains
               CATH domains 2a5tA01 A:4-143,A:252-287 Periplasmic binding          protein-like II                                                                      2a5tA02 A:1                                                                                                                    44-251 Periplasmic binding protein-like II                                                       2a5tA01 A:4-143,A:252-287            - CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..eeeee.......eeee....................eeeee..---------.eeeeeehhhhhhhhhhhhhh...eeeee........ee..----..eehhhhhhhhh....ee......hhhhhh.eee....eeeeeeeeee...--------------------------------------------------------------------------------------------------------------------......hhhhhh......ee....hhhhhhhhhh..hhhhhhhhh.....hhhhhhhhhhh....eeeeehhhhhhhhhhh..eeeeeeeeeeeee..eee....hhhhhhhhhhhhhhhhhhhhhhhhhh..-. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
           Transcript 1 (1) 1.9 Exon 1.10  PDB: A:8-48 UniProt: 400-447         ------------------------------------------Exon 1.12  PDB: A:98-152 (gaps) UniProt: 490-544       Exon 1.13  PDB: A:153-154 [INCOMPLETE]  -------------------------------------Exon 1.15  PDB: A:155-163 UniProt: 622-671        Exon 1.16  PDB: A:164-216 UniProt: 672-724           -----------------------------------------------------Exon 1.18            Transcript 1 (1)
           Transcript 1 (2) ---------------------------------------------------Exon 1.11  PDB: A:58-97 UniProt: 447-489   ----------------------------------------------------------------------------------------------Exon 1.14  PDB: - UniProt: 584-622     -----------------------------------------------------------------------------------------------------Exon 1.17  PDB: A:216-270 UniProt: 724-778             ------------------- Transcript 1 (2)
                2a5t A    4 TRLKIVTIHQEPFVYVKPTMSDGTCKEEFTVNGDPVKKVICTGPN---------TVPQCCYGFCIDLLIKLARTMNFTYEVHLVADGKFGTQERV----KKEWNGMMGELLSGQADMIVAPLTINNERAQYIEFSKPFKYQGLTILVKKGT--------------------------------------------------------------------------------------------------------------------RITGINDPRLRNPSDKFIYATVKQSSVDIYFRRQVELSTMYRHMEKHNYESAAEAIQAVRDNKLHAFIWDSAVLEFEASQKCDLVTTGELFFRSGFGIGMRKDSPWKQNVSLSILKSHENGFMEDLDKTWVRY-G 1001
                                    13        23        33        43    |    -    |   63        73        83        93    |  103       113       123       133       143       153|        -         -         -         -         -         -         -         -         -         -         -       157       167       177       187       197       207       217       227       237       247       257       267       277       287 |
                                                                       48        58                                      98  103                                                154                                                                                                                  155                                                                                                                                 287 |
                                                                                                                                                                                                                                                                                                                                                                                                                                          1001

Chain B from PDB  Type:PROTEIN  Length:277
 aligned with NMDE1_RAT | Q00959 from UniProtKB/Swiss-Prot  Length:1464

    Alignment length:400
                                   413       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
           NMDE1_RAT    404 NHLSIVTLEEAPFVIVEDIDPLTETCVRNTVPCRKFVKINNSTNEGMNVKKCCKGFCIDILKKLSRTVKFTYDLYLVTNGKHGKKVNNVWNGMIGEVVYQRAVMAVGSLTINEERSEVVDFSVPFVETGISVMVSRSNGTVSPSAFLEPFSASVWVMMFVMLLIVSAIAVFVFEYFSPVGYNRNLAKGKAPHGPSFTIGKAIWLLWGLVFNNSVPVQNPKGTTSKIMVSVWAFFAVIFLASYTANLAAFMIQEEFVDQVTGLSDKKFQRPHDYSPPFRFGTVPNGSTERNIRNNYPYMHQYMTRFNQRGVEDALVSLKTGKLDAFIYDAAVLNYKAGRDEGCKLVTIGSGYIFASTGYGIALQKGSPWKRQIDLALLQFVGDGEMEELETLWLTGICHNE  803
               SCOP domains d2a5tb_ B: automated matches                                                                                                                                                                                                                                                                                                                                                                                     SCOP domains
               CATH domains 2a5tB01 B:7-134,B:242-280 Periplasmic binding protein-like II                                                                   ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------2a5tB01 B:7-134,B:242-280              ------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeee.......eeee............eeeeeeee.......eeeeeeeeehhhhhhhhhhhhhhh.eeeeee........ee..eehhhhhhhhh....ee......hhhhhh.eee....eeeeeeeeee.------------------------------------------------------------------------------------..-----------------------------------......hhhhhhhhhh.....ee....hhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhh....eeeeehhhhhhhhhh.....eee..--..eeeeee..eee....hhhhhhhhhhhhhhhhhhhhhhhhhh....--. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                2a5t B    7 NHLSIVTLEEAPFVIVEDIDPLTETCVRNTVPCRKFVKINNSTNEGMNVKKCCKGFCIDILKKLSRTVKFTYDLYLVTNGKHGKKVNNVWNGMIGEVVYQRAVMAVGSLTINEERSEVVDFSVPFVETGISVMVSR------------------------------------------------------------------------------------GT-----------------------------------QVTGLSDKKFQRPHDYSPPFRFGTVPNGSTERNIRNNYPYMHQYMTRFNQRGVEDALVSLKTGKLDAFIYDAAVLNYKAGRDEGCKLVTIG--YIFATTGYGIALQKGSPWKRQIDLALLQFVGDGEMEELETLWLTGIC--E 2002
                                    16        26        36        46        56        66        76        86        96       106       116       126       136     |   -         -         -         -         -         -         -         -         -||       -         -         -       147       157       167       177       187       197       207       217       227       | -|      247       257       267       277      2002
                                                                                                                                                                 142                                                                                  143|                                 145                                                                                       235  |                                           284  |
                                                                                                                                                                                                                                                       144                                                                                                                              238                                             2002

   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  (2, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 3)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2A5T)

(-) Gene Ontology  (79, 116)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (NMDZ1_RAT | P35439)
molecular function
    GO:0004972    NMDA glutamate receptor activity    An cation channel that opens in response to binding by extracellular glutmate, but only if glycine is also bound and the membrane is depolarized. Voltage gating is indirect, due to ejection of bound magnesium from the pore at permissive voltages.
    GO:0019899    enzyme binding    Interacting selectively and non-covalently with any enzyme.
    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:0016595    glutamate binding    Interacting selectively and non-covalently with glutamate, the anion of 2-aminopentanedioic acid.
    GO:0035254    glutamate receptor binding    Interacting selectively and non-covalently with a glutamate receptor.
    GO:0016594    glycine binding    Interacting selectively and non-covalently with glycine, aminoethanoic acid.
    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:0042165    neurotransmitter binding    Interacting selectively and non-covalently with a neurotransmitter, any chemical substance that is capable of transmitting (or inhibiting the transmission of) a nerve impulse from a neuron to another cell.
    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:0046983    protein dimerization activity    The formation of a protein dimer, a macromolecular structure consists of two noncovalently associated identical or nonidentical subunits.
    GO:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
    GO:0004872    receptor activity    Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
    GO:0005102    receptor binding    Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
    GO:0022843    voltage-gated cation channel activity    Enables the transmembrane transfer of a cation by a voltage-gated channel. A cation is a positively charged ion. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
biological process
    GO:0071287    cellular response to manganese ion    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a manganese ion stimulus.
    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:0007611    learning or memory    The acquisition and processing of information and/or the storage and retrieval of this information over time.
    GO:0010942    positive regulation of cell death    Any process that increases the rate or frequency of cell death. Cell death is the specific activation or halting of processes within a cell so that its vital functions markedly cease, rather than simply deteriorating gradually over time, which culminates in cell death.
    GO:2000463    positive regulation of excitatory postsynaptic potential    Any process that enhances the establishment or increases the extent of the excitatory postsynaptic potential (EPSP) which is 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:0051262    protein tetramerization    The formation of a protein tetramer, a macromolecular structure consisting of four noncovalently associated identical or nonidentical subunits.
    GO:0034765    regulation of ion transmembrane transport    Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
    GO:0014075    response to amine    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 an amine stimulus. An amine is a compound formally derived from ammonia by replacing one, two or three hydrogen atoms by hydrocarbyl groups.
    GO:0051592    response to calcium ion    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 calcium ion stimulus.
    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:0014070    response to organic cyclic compound    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 an organic cyclic compound stimulus.
    GO:0048511    rhythmic process    Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.
    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:0017146    NMDA 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. NMDA receptors are composed of assemblies of NR1 subunits (Figure 3) and NR2 subunits, which can be one of four separate gene products (NR2A-D). Expression of both subunits are required to form functional channels. The glutamate binding domain is formed at the junction of NR1 and NR2 subunits. NMDA receptors are permeable to calcium ions as well as being permeable to other ions. Thus NMDA receptor activation leads to a calcium influx into the post-synaptic cells, a signal thought to be crucial for the induction of NMDA-receptor dependent LTP and LTD.
    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:0032590    dendrite membrane    The portion of the plasma membrane surrounding a dendrite.
    GO:0044307    dendritic branch    A dendrite arising from another dendrite.
    GO:0043197    dendritic spine    A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including "thin", "stubby", "mushroom", and "branched", with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
    GO:0060076    excitatory synapse    A synapse in which an action potential in the presynaptic cell increases the probability of an action potential occurring in the postsynaptic cell.
    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: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:0043083    synaptic cleft    The narrow gap that separates the presynaptic and postsynaptic membranes, into which neurotransmitter is released.
    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.

Chain B   (NMDE1_RAT | Q00959)
molecular function
    GO:0051117    ATPase binding    Interacting selectively and non-covalently with an ATPase, any enzyme that catalyzes the hydrolysis of ATP.
    GO:0004972    NMDA glutamate receptor activity    An cation channel that opens in response to binding by extracellular glutmate, but only if glycine is also bound and the membrane is depolarized. Voltage gating is indirect, due to ejection of bound magnesium from the pore at permissive voltages.
    GO:0005261    cation channel activity    Enables the energy-independent passage of cations across a lipid bilayer down a concentration gradient.
    GO:0050839    cell adhesion molecule binding    Interacting selectively and non-covalently with a cell adhesion molecule.
    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:0016595    glutamate binding    Interacting selectively and non-covalently with glutamate, the anion of 2-aminopentanedioic acid.
    GO:0035254    glutamate receptor binding    Interacting selectively and non-covalently with a glutamate receptor.
    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:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0042165    neurotransmitter binding    Interacting selectively and non-covalently with a neurotransmitter, any chemical substance that is capable of transmitting (or inhibiting the transmission of) a nerve impulse from a neuron to another cell.
    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:0032403    protein complex binding    Interacting selectively and non-covalently with any protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0046983    protein dimerization activity    The formation of a protein dimer, a macromolecular structure consists of two noncovalently associated identical or nonidentical subunits.
    GO:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
    GO:0019901    protein kinase binding    Interacting selectively and non-covalently with a protein kinase, any enzyme that catalyzes the transfer of a phosphate group, usually from ATP, to a protein substrate.
    GO:0004872    receptor activity    Combining with an extracellular or intracellular messenger to initiate a change in cell activity.
    GO:0005102    receptor binding    Interacting selectively and non-covalently with one or more specific sites on a receptor molecule, a macromolecule that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.
    GO:0097110    scaffold protein binding    Interacting selectively and non-covalently with a scaffold protein. Scaffold proteins are crucial regulators of many key signaling pathways. Although not strictly defined in function, they are known to interact and/or bind with multiple members of a signaling pathway, tethering them into complexes.
    GO:0022843    voltage-gated cation channel activity    Enables the transmembrane transfer of a cation by a voltage-gated channel. A cation is a positively charged ion. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0001508    action potential    A process in which membrane potential cycles through a depolarizing spike, triggered in response to depolarization above some threshold, followed by repolarization. This cycle is driven by the flow of ions through various voltage gated channels with different thresholds and ion specificities.
    GO:0098655    cation transmembrane transport    A process in which a cation is transported from one side of a membrane to the other by means of some agent such as a transporter or pore.
    GO:0071230    cellular response to amino acid stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an amino acid stimulus. An amino acid is a carboxylic acids containing one or more amino groups.
    GO:0071359    cellular response to dsRNA    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a double-stranded RNA stimulus.
    GO:0071363    cellular response to growth factor stimulus    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a growth factor stimulus.
    GO:0071396    cellular response to lipid    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipid stimulus.
    GO:0071286    cellular response to magnesium ion    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a magnesium ion stimulus.
    GO:0071287    cellular response to manganese ion    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a manganese ion stimulus.
    GO:0071294    cellular response to zinc ion    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a zinc ion stimulus.
    GO:0021987    cerebral cortex development    The progression of the cerebral cortex over time from its initial formation until its mature state. The cerebral cortex is the outer layered region of the telencephalon.
    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:0021766    hippocampus development    The progression of the hippocampus over time from its initial formation until its mature state.
    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:0007613    memory    The activities involved in the mental information processing system that receives (registers), modifies, stores, and retrieves informational stimuli. The main stages involved in the formation and retrieval of memory are encoding (processing of received information by acquisition), storage (building a permanent record of received information as a result of consolidation) and retrieval (calling back the stored information and use it in a suitable way to execute a given task).
    GO:0010942    positive regulation of cell death    Any process that increases the rate or frequency of cell death. Cell death is the specific activation or halting of processes within a cell so that its vital functions markedly cease, rather than simply deteriorating gradually over time, which culminates in cell death.
    GO:2000463    positive regulation of excitatory postsynaptic potential    Any process that enhances the establishment or increases the extent of the excitatory postsynaptic potential (EPSP) which is 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:0051262    protein tetramerization    The formation of a protein tetramer, a macromolecular structure consisting of four noncovalently associated identical or nonidentical subunits.
    GO:0034765    regulation of ion transmembrane transport    Any process that modulates the frequency, rate or extent of the directed movement of ions from one side of a membrane to the other.
    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:0014075    response to amine    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 an amine stimulus. An amine is a compound formally derived from ammonia by replacing one, two or three hydrogen atoms by hydrocarbyl groups.
    GO:0060359    response to ammonium ion    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 an ammonium ion stimulus.
    GO:0051592    response to calcium ion    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 calcium ion stimulus.
    GO:0009743    response to carbohydrate    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 carbohydrate stimulus.
    GO:0042220    response to cocaine    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 cocaine stimulus. Cocaine is a crystalline alkaloid obtained from the leaves of the coca plant.
    GO:0042493    response to drug    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 drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
    GO:0045471    response to ethanol    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 an ethanol stimulus.
    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:0009416    response to light stimulus    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 light stimulus, electromagnetic radiation of wavelengths classified as infrared, visible or ultraviolet light.
    GO:0010042    response to manganese ion    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 manganese ion stimulus.
    GO:0051597    response to methylmercury    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 methylmercury stimulus.
    GO:0014070    response to organic cyclic compound    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 an organic cyclic compound stimulus.
    GO:0051707    response to other organism    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 stimulus from another living organism.
    GO:0048511    rhythmic process    Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.
    GO:0021510    spinal cord development    The process whose specific outcome is the progression of the spinal cord over time, from its formation to the mature structure. The spinal cord primarily conducts sensory and motor nerve impulses between the brain and the peripheral nervous tissues.
    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:0017146    NMDA 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. NMDA receptors are composed of assemblies of NR1 subunits (Figure 3) and NR2 subunits, which can be one of four separate gene products (NR2A-D). Expression of both subunits are required to form functional channels. The glutamate binding domain is formed at the junction of NR1 and NR2 subunits. NMDA receptors are permeable to calcium ions as well as being permeable to other ions. Thus NMDA receptor activation leads to a calcium influx into the post-synaptic cells, a signal thought to be crucial for the induction of NMDA-receptor dependent LTP and LTD.
    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:0043197    dendritic spine    A small, membranous protrusion from a dendrite that forms a postsynaptic compartment - typically receiving input from a single presynapse. They function as partially isolated biochemical and an electrical compartments. Spine morphology is variable including "thin", "stubby", "mushroom", and "branched", with a continuum of intermediate morphologies. They typically terminate in a bulb shape, linked to the dendritic shaft by a restriction. Spine remodeling is though to be involved in synaptic plasticity.
    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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0043005    neuron projection    A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
    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

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        NMDE1_RAT | Q009592a5s 4jwx 4nf4 4nf5 4nf6 4nf8 5ddn 5ddx 5de4 5dex 5i56 5i57 5i58 5i59 5jty 5tpw 5tq0 5tq2 5vih 5vii 5vij
        NMDZ1_RAT | P354391pb7 1pb8 1pb9 1pbq 1y1m 1y1z 1y20 3q41 4kcc 4kfq 4nf4 4nf5 4nf6 4nf8 4pe5 5ddn 5ddx 5de4 5dex 5fxg 5fxh 5fxi 5fxj 5fxk 5i56 5i57 5i58 5i59 5jty 5u8c 5vih 5vii 5vij

(-) Related Entries Specified in the PDB File

1pb7 CRYSTAL STRUCTURE OF THE NR1 LIGAND BINDING CORE IN COMPLEX WITH GLYCINE AT 1.35 ANGSTROMS RESOLUTION
2a5s CRYSTAL STRUCTURE OF THE NR2A LIGAND BINDING CORE IN COMPLEX WITH GLUTAMATE