View source for 5nuu


==Torpedo californica acetylcholinesterase in complex with a chlorotacrine-tryptophan hybrid inhibitor==
<StructureSection load='5nuu' size='340' side='right'caption='[[5nuu]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5nuu]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Tetronarce_californica Tetronarce californica]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5NUU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5NUU 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]] 2.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=9A5:(2~{S})-2-azanyl-~{N}-[6-[(6-chloranyl-1,2,3,4-tetrahydroacridin-9-yl)amino]hexyl]-3-(1~{H}-indol-3-yl)propanamide'>9A5</scene>, <scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</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=5nuu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5nuu OCA], [https://pdbe.org/5nuu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5nuu RCSB], [https://www.ebi.ac.uk/pdbsum/5nuu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5nuu ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/ACES_TETCF ACES_TETCF] Terminates signal transduction at the neuromuscular junction by rapid hydrolysis of the acetylcholine released into the synaptic cleft. May be involved in cell-cell interactions.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
A combination of tacrine and tryptophan led to the development of a new family of heterodimers as multi-target agents with potential to treat Alzheimer's disease. Based on the in vitro biological profile, compound S-K1035 was found to be the most potent inhibitor of human acetylcholinesterase (hAChE) and human butyrylcholinesterase (hBChE), demonstrating balanced IC50 values of 6.3 and 9.1nM, respectively. For all the tacrine-tryptophan heterodimers, favorable inhibitory effect on hAChE as well as on hBChE was coined to the optimal spacer length ranging from five to eight carbon atoms between these two pharmacophores. S-K1035 also showed good ability to inhibit Abeta42 self-aggregation (58.6+/-5.1% at 50muM) as well as hAChE-induced Abeta40 aggregation (48.3+/-6.3% at 100muM). The X-ray crystallographic analysis of TcAChE in complex with S-K1035 pinpointed the utility of the hybridization strategy applied and the structures determined with the two K1035 enantiomers in complex with hBChE could explain the higher inhibition potency of S-K1035. Other in vitro evaluations predicted the ability of S-K1035 to cross blood-brain barrier and to exert a moderate inhibition potency against neuronal nitric oxide synthase. Based on the initial promising biochemical data and a safer in vivo toxicity compared to tacrine, S-K1035 was administered to scopolamine-treated rats being able to dose-dependently revert amnesia.

Novel tacrine-tryptophan hybrids: Multi-target directed ligands as potential treatment for Alzheimer's disease.,Chalupova K, Korabecny J, Bartolini M, Monti B, Lamba D, Caliandro R, Pesaresi A, Brazzolotto X, Gastellier AJ, Nachon F, Pejchal J, Jarosova M, Hepnarova V, Jun D, Hrabinova M, Dolezal R, Zdarova Karasova J, Mzik M, Kristofikova Z, Misik J, Muckova L, Jost P, Soukup O, Benkova M, Setnicka V, Habartova L, Chvojkova M, Kleteckova L, Vales K, Mezeiova E, Uliassi E, Valis M, Nepovimova E, Bolognesi ML, Kuca K Eur J Med Chem. 2019 Apr 15;168:491-514. doi: 10.1016/j.ejmech.2019.02.021. Epub , 2019 Feb 27. PMID:30851693<ref>PMID:30851693</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5nuu" style="background-color:#fffaf0;"></div>

==See Also==
*[[Acetylcholinesterase 3D structures|Acetylcholinesterase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Tetronarce californica]]
[[Category: Caliandro R]]
[[Category: Lamba D]]
[[Category: Pesaresi A]]