7b50

<table><tr><td colspan='2'>[[7b50]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7B50 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7B50 FirstGlance]. <br>

</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DMS:DIMETHYL+SULFOXIDE'>DMS</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=SXQ:3-(3,4-dichlorophenyl)sulfanyl-1$l^{4},2,7,8-tetrazabicyclo[4.3.0]nona-1(6),2,4,7-tetraen-9-one'>SXQ</scene></td></tr>

<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/[Wnt_protein]_O-palmitoleoyl-L-serine_hydrolase [Wnt protein] O-palmitoleoyl-L-serine hydrolase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.1.98 3.1.1.98] </span></td></tr>

== Function ==

[[https://www.uniprot.org/uniprot/NOTUM_HUMAN NOTUM_HUMAN]] May deacetylate GlcNAc residues on cell surface glycans.

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== Publication Abstract from PubMed ==

Notum is a negative regulator of Wnt signaling acting through the hydrolysis of a palmitoleoylate ester, which is required for Wnt activity. Inhibitors of Notum could be of use in diseases where dysfunctional Notum activity is an underlying cause. A docking-based virtual screen (VS) of a large commercial library was used to shortlist 952 compounds for experimental validation as inhibitors of Notum. The VS was successful with 31 compounds having an IC50 &lt; 500 nM. A critical selection process was then applied with two clusters and two singletons (1-4d) selected for hit validation. Optimization of 4d guided by structural biology identified potent inhibitors of Notum activity that restored Wnt/beta-catenin signaling in cell-based models. The [1,2,4]triazolo[4,3-b]pyradizin-3(2H)-one series 4 represent a new chemical class of Notum inhibitors and the first to be discovered by a VS campaign. These results demonstrate the value of VS with well-designed docking models based on X-ray structures.

 

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== References ==

[[Category: Fish, P]]

[[Category: Jones, E Y]]

[[Category: Notum inhibitor]]