7r3c: Difference between revisions
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==VX-inhibited acetylcholinesterase in complex with 2-((hydroxyimino)methyl)-1-(5-(4-methyl-3-nitrobenzamido)pentyl)pyridinium== | |||
<StructureSection load='7r3c' size='340' side='right'caption='[[7r3c]], [[Resolution|resolution]] 2.40Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[7r3c]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7R3C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7R3C 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]] 2.4000041Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=I1X:4-methyl-3-nitro-~{N}-[(2~{E},4~{E})-5-[2-[(oxidanylamino)methyl]pyridin-1-yl]penta-2,4-dienyl]benzamide'>I1X</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=P15:2,5,8,11,14,17-HEXAOXANONADECAN-19-OL'>P15</scene>, <scene name='pdbligand=PG0:2-(2-METHOXYETHOXY)ETHANOL'>PG0</scene>, <scene name='pdbligand=SVX:O-[(R)-ETHOXY(METHYL)PHOSPHORYL]-L-SERINE'>SVX</scene>, <scene name='pdbligand=TOE:2-[2-(2-METHOXY-ETHOXY)-ETHOXY]-ETHOXYL'>TOE</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=7r3c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7r3c OCA], [https://pdbe.org/7r3c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7r3c RCSB], [https://www.ebi.ac.uk/pdbsum/7r3c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7r3c ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/ACES_MOUSE ACES_MOUSE] Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Reactivators are vital for the treatment of organophosphorus nerve agent (OPNA) intoxication but new alternatives are needed due to their limited clinical applicability. The toxicity of OPNAs stems from covalent inhibition of the essential enzyme acetylcholinesterase (AChE), which reactivators relieve via a chemical reaction with the inactivated enzyme. Here, we present new strategies and tools for developing reactivators. We discover suitable inhibitor scaffolds by using an activity-independent competition assay to study non-covalent interactions with OPNA-AChEs and transform these inhibitors into broad-spectrum reactivators. Moreover, we identify determinants of reactivation efficiency by analysing reactivation and pre-reactivation kinetics together with structural data. Our results show that new OPNA reactivators can be discovered rationally by exploiting detailed knowledge of the reactivation mechanism of OPNA-inhibited AChE. | |||
Broad-spectrum antidote discovery by untangling the reactivation mechanism of nerve agent inhibited acetylcholinesterase.,Lindgren C, Forsgren N, Hoster N, Akfur C, Artursson E, Edvinsson L, Svensson R, Worek F, Ekstrom F, Linusson A Chemistry. 2022 Apr 14. doi: 10.1002/chem.202200678. PMID:35420233<ref>PMID:35420233</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 7r3c" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Acetylcholinesterase 3D structures|Acetylcholinesterase 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Mus musculus]] | |||
[[Category: Edvinsson L]] | |||
[[Category: Ekstrom F]] | |||
[[Category: Forsgren N]] | |||
[[Category: Lindgren C]] | |||
[[Category: Linusson A]] |