3rtf

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[[Image:3rtf.png|left|200px]]
 
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==Chlorowillardiine bound to the ligand binding domain of GluA2==
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The line below this paragraph, containing "STRUCTURE_3rtf", creates the "Structure Box" on the page.
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<StructureSection load='3rtf' size='340' side='right'caption='[[3rtf]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3rtf]] is a 3 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=3RTF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3RTF FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.7&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CWD:3-(5-CHLORO-2,4-DIOXO-3,4-DIHYDROPYRIMIDIN-1(2H)-YL)-L-ALANINE'>CWD</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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{{STRUCTURE_3rtf| PDB=3rtf | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3rtf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rtf OCA], [https://pdbe.org/3rtf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3rtf RCSB], [https://www.ebi.ac.uk/pdbsum/3rtf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3rtf ProSAT]</span></td></tr>
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</table>
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== Function ==
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[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>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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AMPA receptors are the major excitatory neurotransmitter receptors in the CNS and are involved in numerous neurological disorders. An agonist-binding site is present in each of four subunits that form a functional channel. Binding consists of three steps: docking of agonist to the bi-lobed ligand binding domain (LBD), closure of the LBD, and increased stability of the closed-lobe conformation through interlobe hydrogen bonding. We describe GluA3 single channel currents activated by nitrowillardiine (NO(2)W) and chlorowillardiine (ClW) in the presence of cyclothiazide, in conjunction with crystal structures of GluA2 and GluA3 LBDs bound to fluorowillardiine (FW), ClW, and NO(2)W. When bound to NO(2)W or ClW, the GluA3 channel opens to three conductance levels with comparable open probabilities and displays modal behavior similar to that obtained with glutamate and FW as agonists (Poon et al., 2010). At lower concentrations, ClW evoked an alternate kinetic behavior, consisting of high open probability in lower conductance states. The structure of ClW bound to GluA3 LBD exhibits a unique partially open hydrogen bonding structure that may be associated with these alternative kinetics. NO(2)W evoked longer open times than seen for other agonists in high and very high modes. The structure of GluA2 LBD bound to NO2W exhibits fully closed lobes with additional interlobe interactions mediated by the nitro group. Beyond differences in efficacy between full and partial agonists, the complexities of the single channel behavior of AMPA receptors may also be associated with small interactions that modify the stability of various degrees of closure.
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===Chlorowillardiine bound to the ligand binding domain of GluA2===
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Mechanisms of Modal Activation of GluA3 Receptors.,Poon K, Ahmed AH, Nowak LM, Oswald RE Mol Pharmacol. 2011 Apr 4. PMID:21464198<ref>PMID:21464198</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3rtf" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 21464198 is the PubMed ID number.
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{{ABSTRACT_PUBMED_21464198}}
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==About this Structure==
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[[3rtf]] is a 3 chain structure of [[Ionotropic Glutamate Receptors]] with sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RTF OCA].
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==See Also==
==See Also==
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*[[Ionotropic Glutamate Receptors]]
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*[[Glutamate receptor 3D structures|Glutamate receptor 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:021464198</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
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[[Category: Ahmed, A H.]]
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[[Category: Ahmed AH]]
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[[Category: Oswald, R E.]]
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[[Category: Oswald RE]]
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[[Category: Ampa receptor]]
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[[Category: Glur2]]
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[[Category: Glutamate receptor]]
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[[Category: Neurotransmitter receptor]]
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[[Category: S1s2]]
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[[Category: Transport protein]]
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Current revision

Chlorowillardiine bound to the ligand binding domain of GluA2

PDB ID 3rtf

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