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(-) Description

Title :  CRYSTAL STRUCTURE OF METABOTROPIC GLUTAMATE RECEPTOR SUBTYPE 1 LIGAND FREE FORM I
 
Authors :  N. Kunishima, Y. Shimada, Y. Tsuji, H. Jingami, K. Morikawa
Date :  27 Apr 00  (Deposition) - 18 Dec 00  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.70
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Signal Transduction, Neurotransmitter, Cns, Neuron, Signaling Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  N. Kunishima, Y. Shimada, Y. Tsuji, T. Sato, M. Yamamoto, T. Kumasaka, S. Nakanishi, H. Jingami, K. Morikawa
Structural Basis Of Glutamate Recognition By A Dimeric Metabotropic Glutamate Receptor.
Nature V. 407 971 2000
PubMed-ID: 11069170  |  Reference-DOI: 10.1038/35039564

(-) Compounds

Molecule 1 - METABOTROPIC GLUTAMATE RECEPTOR SUBTYPE 1
    ChainsA, B
    EngineeredYES
    Expression SystemSPODOPTERA FRUGIPERDA
    Expression System Cell LineSF-9
    Expression System CommonFALL ARMYWORM
    Expression System Taxid7108
    Expression System VectorAUTOGRAPHA CALIFORNICA NUCLEAR POLYHEDROSIS VIRUS
    Expression System Vector TypeVIRUS
    FragmentEXTRACELLULAR LIGAND BINDING REGION
    Organism CommonNORWAY RAT
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116
    SynonymMGLUR1

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 5)

Asymmetric/Biological Unit (2, 5)
No.NameCountTypeFull Name
1NAG1Ligand/IonN-ACETYL-D-GLUCOSAMINE
2SO44Ligand/IonSULFATE ION

(-) Sites  (5, 5)

Asymmetric Unit (5, 5)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASN B:98BINDING SITE FOR RESIDUE NAG B 601
2AC2SOFTWAREHIS A:55 , ARG A:71 , GLU A:72 , GLN A:73BINDING SITE FOR RESIDUE SO4 A 701
3AC3SOFTWAREGLU A:292 , GLY A:293 , MET A:294 , ARG A:323BINDING SITE FOR RESIDUE SO4 A 702
4AC4SOFTWAREHIS B:55 , ARG B:71 , GLU B:72 , GLN B:73 , TYR B:74BINDING SITE FOR RESIDUE SO4 B 703
5AC5SOFTWAREGLU B:292 , GLY B:293 , MET B:294 , ARG B:323BINDING SITE FOR RESIDUE SO4 B 704

(-) SS Bonds  (8, 8)

Asymmetric/Biological Unit
No.Residues
1A:67 -A:109
2A:289 -A:291
3A:378 -A:394
4A:432 -A:439
5B:67 -B:109
6B:289 -B:291
7B:378 -B:394
8B:432 -B:439

(-) Cis Peptide Bonds  (6, 6)

Asymmetric/Biological Unit
No.Residues
1Gly A:161 -Pro A:162
2Leu A:281 -Pro A:282
3Lys A:443 -Pro A:444
4Gly B:161 -Pro B:162
5Leu B:281 -Pro B:282
6Lys B:443 -Pro B:444

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1EWT)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1G_PROTEIN_RECEP_F3_1PS00979 G-protein coupled receptors family 3 signature 1.GRM1_RAT171-189
 
  2A:171-189
B:171-189

(-) Exons   (5, 10)

Asymmetric/Biological Unit (5, 10)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENSRNOT000000193191ENSRNOE00000136381chr1:5744593-574453658GRM1_RAT-00--
1.2ENSRNOT000000193192ENSRNOE00000136431chr1:5743190-57421731018GRM1_RAT1-2342342A:35-234 (gaps)
B:35-234 (gaps)
200
200
1.3ENSRNOT000000193193ENSRNOE00000136613chr1:5615348-5615099250GRM1_RAT234-317842A:234-317
B:234-317
84
84
1.4ENSRNOT000000193194ENSRNOE00000136744chr1:5417531-5417296236GRM1_RAT317-396802A:317-396
B:317-396
80
80
1.5ENSRNOT000000193195ENSRNOE00000136890chr1:5381153-5380907247GRM1_RAT396-478832A:396-478
B:396-478
83
83
1.6ENSRNOT000000193196ENSRNOE00000137020chr1:5375675-5375507169GRM1_RAT478-534572A:478-512
B:478-512
35
35
1.7ENSRNOT000000193197ENSRNOE00000278695chr1:5367325-5367199127GRM1_RAT535-577430--
1.8ENSRNOT000000193198ENSRNOE00000137296chr1:5352236-5351306931GRM1_RAT577-8873110--
1.11ENSRNOT0000001931911ENSRNOE00000137534chr1:5322394-53186173778GRM1_RAT887-11993130--

(-) 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:456
 aligned with GRM1_RAT | P23385 from UniProtKB/Swiss-Prot  Length:1199

    Alignment length:478
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504        
             GRM1_RAT    35 QRSVARMDGDVIIGALFSVHHQPPAEKVPERKCGEIREQYGIQRVEAMFHTLDKINADPVLLPNITLGSEIRDSCWHSSVALEQSIEFIRDSLISIRDEKDGLNRCLPDGQTLPPGRTKKPIAGVIGPGSSSVAIQVQNLLQLFDIPQIAYSATSIDLSDKTLYKYFLRVVPSDTLQARAMLDIVKRYNWTYVSAVHTEGNYGESGMDAFKELAAQEGLCIAHSDKIYSNAGEKSFDRLLRKLRERLPKARVVVCFCEGMTVRGLLSAMRRLGVVGEFSLIGSDGWADRDEVIEGYEVEANGGITIKLQSPEVRSFDDYFLKLRLDTNTRNPWFPEFWQHRFQCRLPGHLLENPNFKKVCTGNESLEENYVQDSKMGFVINAIYAMAHGLQNMHHALCPGHVGLCDAMKPIDGRKLLDFLIKSSFVGVSGEEVWFDEKGDAPGRYDIMNLQYTEANRYDYVHVGTWHEGVLNIDDYKI 512
               SCOP domains d1ewta_ A: Metabotropic glutamate receptor subtype 1                                                                                                                                                                                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains -1ewtA01 A:36-206,A:344-476  [code=3.40.50.2300, no name defined]                                                                                                           1ewtA02 A:207-343,A:477-511  [code=3.40.50.2300, no name defined]                                                                        1ewtA01 A:36-206,A:344-476  [code=3.40.50.2300, no name defined]                                                                     1ewtA02 A:207-343,A:477-511        - CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee...eeeeeee......hhhhh............hhhhhhhhhhhhhhhhhh........eeeeeee...hhhhhhhhhhhhhhhhhhh..----------------------..eeeee...hhhhhhhhhhhhh.....eee....hhhhhh......eee....hhhhhhhhhhhhhhh...eeeeeee.hhhhhhhhhhhhhhhhhhh.eeeeeeee....hhhhhhhhhhhhhhh.....eeeee.hhhhhhhhhhhhhhh......eeee.....................eeeee....hhhhhhhhhh..........hhhhhhhhhhh...............................hhhhhhhhhhhhhhhhhhhhhhhh......hhhhh..hhhhhhhhhhh.eee.....eee.........eeeeeeeee.....eeeeeeeeee..eeee.hhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------G_PROTEIN_RECEP_F3_----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2  PDB: A:35-234 (gaps) UniProt: 1-234 [INCOMPLETE]                                                                                                                                              ----------------------------------------------------------------------------------Exon 1.4  PDB: A:317-396 UniProt: 317-396                                       ---------------------------------------------------------------------------------Exon 1.6  PDB: A:478-512            Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.3  PDB: A:234-317 UniProt: 234-317                                           ------------------------------------------------------------------------------Exon 1.5  PDB: A:396-478 UniProt: 396-478                                          ---------------------------------- Transcript 1 (2)
                 1ewt A  35 QRSVARMDGDVIIGALFSVHHQPPAEKVPERKCGEIREQYGIQRVEAMFHTLDKINADPVLLPNITLGSEIRDSCWHSSVALEQSIEFIRDSLISIR----------------------KPIAGVIGPGSSSVAIQVQNLLQLFDIPQIAYSATSIDLSDKTLYKYFLRVVPSDTLQARAMLDIVKRYNWTYVSAVHTEGNYGESGMDAFKELAAQEGLCIAHSDKIYSNAGEKSFDRLLRKLRERLPKARVVVCFCEGMTVRGLLSAMRRLGVVGEFSLIGSDGWADRDEVIEGYEVEANGGITIKLQSPEVRSFDDYFLKLRLDTNTRNPWFPEFWQHRFQCRLPGHLLENPNFKKVCTGNESLEENYVQDSKMGFVINAIYAMAHGLQNMHHALCPGHVGLCDAMKPIDGRKLLDFLIKSSFVGVSGEEVWFDEKGDAPGRYDIMNLQYTEANRYDYVHVGTWHEGVLNIDDYKI 512
                                    44        54        64        74        84        94       104       114       124      |  -         -       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504        
                                                                                                                          131                    154                                                                                                                                                                                                                                                                                                                                                                      

Chain B from PDB  Type:PROTEIN  Length:456
 aligned with GRM1_RAT | P23385 from UniProtKB/Swiss-Prot  Length:1199

    Alignment length:478
                                    44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504        
             GRM1_RAT    35 QRSVARMDGDVIIGALFSVHHQPPAEKVPERKCGEIREQYGIQRVEAMFHTLDKINADPVLLPNITLGSEIRDSCWHSSVALEQSIEFIRDSLISIRDEKDGLNRCLPDGQTLPPGRTKKPIAGVIGPGSSSVAIQVQNLLQLFDIPQIAYSATSIDLSDKTLYKYFLRVVPSDTLQARAMLDIVKRYNWTYVSAVHTEGNYGESGMDAFKELAAQEGLCIAHSDKIYSNAGEKSFDRLLRKLRERLPKARVVVCFCEGMTVRGLLSAMRRLGVVGEFSLIGSDGWADRDEVIEGYEVEANGGITIKLQSPEVRSFDDYFLKLRLDTNTRNPWFPEFWQHRFQCRLPGHLLENPNFKKVCTGNESLEENYVQDSKMGFVINAIYAMAHGLQNMHHALCPGHVGLCDAMKPIDGRKLLDFLIKSSFVGVSGEEVWFDEKGDAPGRYDIMNLQYTEANRYDYVHVGTWHEGVLNIDDYKI 512
               SCOP domains d1ewtb_ B: Metabotropic glutamate receptor subtype 1                                                                                                                                                                                                                                                                                                                                                                                                                                           SCOP domains
               CATH domains -1ewtB01 B:36-206,B:344-476  [code=3.40.50.2300, no name defined]                                                                                                           1ewtB02 B:207-343,B:477-511  [code=3.40.50.2300, no name defined]                                                                        1ewtB01 B:36-206,B:344-476  [code=3.40.50.2300, no name defined]                                                                     1ewtB02 B:207-343,B:477-511        - CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eee...eeeeeee......hhhhh............hhhhhhhhhhhhhhhh..........eeeeeee...hhhhhhhhhhhhhhhhhhhh.----------------------..eeeee...hhhhhhhhhhhhhhhh..eee....hhhhhh......eee...hhhhhhhhhhhhhhhh...eeeeeee.hhhhhhhhhhhhhhhhhhh.eeeeeeee....hhhhhhhhhhhhhhh.....eeeee.hhhhhhhhhhhhhhh......eeee.....................eeeee....hhhhhhhhhh..........hhhhhhhhhhhee............ee...............hhhhhhhhhhhhhhhhhhhhhhhh......hhhhh..hhhhhhhhhhh.eee.....eee..........eeeeeeee.....eeeeeeeeee..eeee.hhhh Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------G_PROTEIN_RECEP_F3_----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.2  PDB: B:35-234 (gaps) UniProt: 1-234 [INCOMPLETE]                                                                                                                                              ----------------------------------------------------------------------------------Exon 1.4  PDB: B:317-396 UniProt: 317-396                                       ---------------------------------------------------------------------------------Exon 1.6  PDB: B:478-512            Transcript 1 (1)
           Transcript 1 (2) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Exon 1.3  PDB: B:234-317 UniProt: 234-317                                           ------------------------------------------------------------------------------Exon 1.5  PDB: B:396-478 UniProt: 396-478                                          ---------------------------------- Transcript 1 (2)
                 1ewt B  35 QRSVARMDGDVIIGALFSVHHQPPAEKVPERKCGEIREQYGIQRVEAMFHTLDKINADPVLLPNITLGSEIRDSCWHSSVALEQSIEFIRDSLISIR----------------------KPIAGVIGPGSSSVAIQVQNLLQLFDIPQIAYSATSIDLSDKTLYKYFLRVVPSDTLQARAMLDIVKRYNWTYVSAVHTEGNYGESGMDAFKELAAQEGLCIAHSDKIYSNAGEKSFDRLLRKLRERLPKARVVVCFCEGMTVRGLLSAMRRLGVVGEFSLIGSDGWADRDEVIEGYEVEANGGITIKLQSPEVRSFDDYFLKLRLDTNTRNPWFPEFWQHRFQCRLPGHLLENPNFKKVCTGNESLEENYVQDSKMGFVINAIYAMAHGLQNMHHALCPGHVGLCDAMKPIDGRKLLDFLIKSSFVGVSGEEVWFDEKGDAPGRYDIMNLQYTEANRYDYVHVGTWHEGVLNIDDYKI 512
                                    44        54        64        74        84        94       104       114       124      |  -         -       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354       364       374       384       394       404       414       424       434       444       454       464       474       484       494       504        
                                                                                                                          131                    154                                                                                                                                                                                                                                                                                                                                                                      

   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

(-) CATH Domains  (1, 4)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)
1a1ewtA02A:207-343,A:477-511
1b1ewtA01A:36-206,A:344-476
1c1ewtB01B:36-206,B:344-476
1d1ewtB02B:207-343,B:477-511

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1EWT)

(-) Gene Ontology  (29, 29)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (GRM1_RAT | P23385)
molecular function
    GO:0004930    G-protein coupled receptor activity    Combining with an extracellular signal and transmitting the signal across the membrane by activating an associated G-protein; promotes the exchange of GDP for GTP on the alpha subunit of a heterotrimeric G-protein complex.
    GO:0001639    PLC activating G-protein coupled glutamate receptor activity    A G-protein coupled receptor that binds glutamate and is linked to the inositol 1,4,5-trisphosphate/calcium signaling system.
    GO:0030331    estrogen receptor binding    Interacting selectively and non-covalently with an estrogen receptor.
    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: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:0004871    signal transducer activity    Conveys a signal across a cell to trigger a change in cell function or state. A signal is a physical entity or change in state that is used to transfer information in order to trigger a response.
biological process
    GO:0007216    G-protein coupled glutamate receptor signaling pathway    A series of molecular signals initiated by glutamate binding to a glutamate receptor on the surface of the target cell, and proceeding with the activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. Ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0007186    G-protein coupled receptor signaling pathway    A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
    GO:0019722    calcium-mediated signaling    Any intracellular signal transduction in which the signal is passed on within the cell via calcium ions.
    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:0038042    dimeric G-protein coupled receptor signaling pathway    A series of molecular signals initiated by an extracellular signal combining with a dimeric receptor on the surface of the target cell, and proceeding with the activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. Heterodimeric and homodimeric GPCRs may have different functional properties from those of the respective monomers.
    GO:0051899    membrane depolarization    The process in which membrane potential decreases with respect to its steady-state potential, usually from negative potential to a more positive potential. For example, the initial depolarization during the rising phase of an action potential is in the direction from the negative steady-state resting potential towards the positive membrane potential that will be the peak of the action potential.
    GO:0007206    phospholipase C-activating G-protein coupled glutamate receptor signaling pathway    The series of molecular signals generated as a consequence of a G-protein coupled glutamate receptor binding to its physiological ligand, where the pathway proceeds with activation of phospholipase C (PLC) and a subsequent release of inositol trisphosphate (IP3) and diacylglycerol (DAG).
    GO:0051482    positive regulation of cytosolic calcium ion concentration involved in phospholipase C-activating G-protein coupled signaling pathway    Any process that increases the concentration of calcium ions in the cytosol that occurs as part of a PLC-activating G-protein coupled receptor signaling pathway. G-protein-activated PLC hydrolyses phosphatidylinositol-bisphosphate (PIP2) to release diacylglycerol (DAG) and inositol trisphosphate (IP3). IP3 then binds to calcium release channels in the endoplasmic reticulum (ER) to trigger calcium ion release into the cytosol.
    GO:0007205    protein kinase C-activating G-protein coupled receptor signaling pathway    The series of molecular signals generated as a consequence of a G-protein coupled receptor binding to its physiological ligand, where the pathway proceeds with activation of protein kinase C (PKC). PKC is activated by second messengers including diacylglycerol (DAG).
    GO:0014048    regulation of glutamate secretion    Any process that modulates the frequency, rate or extent of the controlled release of glutamate.
    GO:0051966    regulation of synaptic transmission, glutamatergic    Any process that modulates 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:0019233    sensory perception of pain    The series of events required for an organism to receive a painful stimulus, convert it to a molecular signal, and recognize and characterize the signal. Pain is medically defined as the physical sensation of discomfort or distress caused by injury or illness, so can hence be described as a harmful stimulus which signals current (or impending) tissue damage. Pain may come from extremes of temperature, mechanical damage, electricity or from noxious chemical substances. This is a neurological process.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
    GO:0051932    synaptic transmission, GABAergic    The vesicular release of gamma-aminobutyric acid (GABA). from a presynapse, across a chemical synapse, the subsequent activation of GABA 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.
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: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: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:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    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: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.

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 Related Entries

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

UniProtKB/Swiss-Prot
        GRM1_RAT | P233851ewk 1ewv 1isr 1iss

(-) Related Entries Specified in the PDB File

1ewv
1ewk 1EWK CONTAINS THE SAME PROTEIN COMPLEXED WITH GLUTAMATE