4u4f
From Proteopedia
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| - | '''Unreleased structure''' | ||
| - | + | ==Structure of GluA2* in complex with partial agonist (S)-5-Nitrowillardiine== | |
| + | <StructureSection load='4u4f' size='340' side='right'caption='[[4u4f]], [[Resolution|resolution]] 4.79Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[4u4f]] 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=4U4F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4U4F 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]] 4.79Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=NWD:3-(5-NITRO-2,4-DIOXO-3,4-DIHYDROPYRIMIDIN-1(2H)-YL)-L-ALANINE'>NWD</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=4u4f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4u4f OCA], [https://pdbe.org/4u4f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4u4f RCSB], [https://www.ebi.ac.uk/pdbsum/4u4f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4u4f ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/GRIA2_RAT GRIA2_RAT] Receptor for glutamate that functions as ligand-gated ion channel in the central nervous system and plays an important role in excitatory synaptic transmission. L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system. Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse. The receptor then desensitizes rapidly and enters a transient inactive state, characterized by the presence of bound agonist. In the presence of CACNG4 or CACNG7 or CACNG8, shows resensitization which is characterized by a delayed accumulation of current flux upon continued application of glutamate.<ref>PMID:9351977</ref> <ref>PMID:19265014</ref> <ref>PMID:21172611</ref> <ref>PMID:12501192</ref> <ref>PMID:12015593</ref> <ref>PMID:12872125</ref> <ref>PMID:12730367</ref> <ref>PMID:16192394</ref> <ref>PMID:15591246</ref> <ref>PMID:17018279</ref> <ref>PMID:16483599</ref> <ref>PMID:19946266</ref> <ref>PMID:21317873</ref> <ref>PMID:21846932</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Ionotropic glutamate receptors (iGluRs) mediate most excitatory neurotransmission in the central nervous system and function by opening their ion channel in response to binding of agonist glutamate. Here, we report a structure of a homotetrameric rat GluA2 receptor in complex with partial agonist (S)-5-Nitrowillardiine. Comparison of this structure with the closed state structure in complex with competitive antagonist ZK 200775 suggests conformational changes that occur during iGluR gating. Guided by the structures, we engineered disulfide crosslinks to probe domain interactions that are important for iGluR gating events. The combination of structural information, kinetic modeling, biochemical and electrophysiological experiments provides insight into the mechanism of iGluR gating. | ||
| - | + | Structure of an agonist-bound ionotropic glutamate receptor.,Yelshanskaya MV, Li M, Sobolevsky AI Science. 2014 Aug 7. pii: 1256508. PMID:25103407<ref>PMID:25103407</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| + | </div> | ||
| + | <div class="pdbe-citations 4u4f" 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: Li M]] | ||
| + | [[Category: Sobolevsky AI]] | ||
| + | [[Category: Yelshanskaya MV]] | ||
Current revision
Structure of GluA2* in complex with partial agonist (S)-5-Nitrowillardiine
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