4pe5: Difference between revisions
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==Crystal Structure of GluN1a/GluN2B NMDA Receptor Ion Channel== | |||
<StructureSection load='4pe5' size='340' side='right'caption='[[4pe5]], [[Resolution|resolution]] 3.96Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4pe5]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4PE5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4PE5 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.96Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=GLU:GLUTAMIC+ACID'>GLU</scene>, <scene name='pdbligand=GLY:GLYCINE'>GLY</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=QEL:4-[(1R,2S)-2-(4-BENZYLPIPERIDIN-1-YL)-1-HYDROXYPROPYL]PHENOL'>QEL</scene>, <scene name='pdbligand=W:TUNGSTEN+ION'>W</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4pe5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4pe5 OCA], [https://pdbe.org/4pe5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4pe5 RCSB], [https://www.ebi.ac.uk/pdbsum/4pe5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4pe5 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/NMDE2_RAT NMDE2_RAT] NMDA receptor subtype of glutamate-gated ion channels with high calcium permeability and voltage-dependent sensitivity to magnesium. Mediated by glycine. In concert with DAPK1 at extrasynaptic sites, acts as a central mediator for stroke damage. Its phosphorylation at Ser-1303 by DAPK1 enhances synaptic NMDA receptor channel activity inducing injurious Ca2+ influx through them, resulting in an irreversible neuronal death (By similarity). | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
N-Methyl-D-aspartate (NMDA) receptors belong to the family of ionotropic glutamate receptors, which mediate most excitatory synaptic transmission in mammalian brains. Calcium permeation triggered by activation of NMDA receptors is the pivotal event for initiation of neuronal plasticity. Here, we show the crystal structure of the intact heterotetrameric GluN1-GluN2B NMDA receptor ion channel at 4 angstroms. The NMDA receptors are arranged as a dimer of GluN1-GluN2B heterodimers with the twofold symmetry axis running through the entire molecule composed of an amino terminal domain (ATD), a ligand-binding domain (LBD), and a transmembrane domain (TMD). The ATD and LBD are much more highly packed in the NMDA receptors than non-NMDA receptors, which may explain why ATD regulates ion channel activity in NMDA receptors but not in non-NMDA receptors. | |||
Crystal structure of a heterotetrameric NMDA receptor ion channel.,Karakas E, Furukawa H Science. 2014 May 30;344(6187):992-7. doi: 10.1126/science.1251915. PMID:24876489<ref>PMID:24876489</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4pe5" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Glutamate receptor 3D structures|Glutamate receptor 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Rattus norvegicus]] | |||
[[Category: Furukawa H]] | |||
[[Category: Karakas E]] | |||
Latest revision as of 14:16, 6 November 2024
Crystal Structure of GluN1a/GluN2B NMDA Receptor Ion ChannelCrystal Structure of GluN1a/GluN2B NMDA Receptor Ion Channel
Structural highlights
FunctionNMDE2_RAT NMDA receptor subtype of glutamate-gated ion channels with high calcium permeability and voltage-dependent sensitivity to magnesium. Mediated by glycine. In concert with DAPK1 at extrasynaptic sites, acts as a central mediator for stroke damage. Its phosphorylation at Ser-1303 by DAPK1 enhances synaptic NMDA receptor channel activity inducing injurious Ca2+ influx through them, resulting in an irreversible neuronal death (By similarity). Publication Abstract from PubMedN-Methyl-D-aspartate (NMDA) receptors belong to the family of ionotropic glutamate receptors, which mediate most excitatory synaptic transmission in mammalian brains. Calcium permeation triggered by activation of NMDA receptors is the pivotal event for initiation of neuronal plasticity. Here, we show the crystal structure of the intact heterotetrameric GluN1-GluN2B NMDA receptor ion channel at 4 angstroms. The NMDA receptors are arranged as a dimer of GluN1-GluN2B heterodimers with the twofold symmetry axis running through the entire molecule composed of an amino terminal domain (ATD), a ligand-binding domain (LBD), and a transmembrane domain (TMD). The ATD and LBD are much more highly packed in the NMDA receptors than non-NMDA receptors, which may explain why ATD regulates ion channel activity in NMDA receptors but not in non-NMDA receptors. Crystal structure of a heterotetrameric NMDA receptor ion channel.,Karakas E, Furukawa H Science. 2014 May 30;344(6187):992-7. doi: 10.1126/science.1251915. PMID:24876489[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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