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==Notum in complex with ARUK3002704==
==Notum in complex with ARUK3002704==
<StructureSection load='7arg' size='340' side='right'caption='[[7arg]]' scene=''>
<StructureSection load='7arg' size='340' side='right'caption='[[7arg]], [[Resolution|resolution]] 1.24&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7ARG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7ARG FirstGlance]. <br>
<table><tr><td colspan='2'>[[7arg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7ARG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7ARG FirstGlance]. <br>
</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=7arg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7arg OCA], [https://pdbe.org/7arg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7arg RCSB], [https://www.ebi.ac.uk/pdbsum/7arg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7arg ProSAT]</span></td></tr>
</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=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=RW8:methyl+4-(2,3-dihydroindol-1-yl)-4-oxidanylidene-butanoate'>RW8</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">NOTUM, OK/SW-CL.30 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7arg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7arg OCA], [https://pdbe.org/7arg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7arg RCSB], [https://www.ebi.ac.uk/pdbsum/7arg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7arg ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[[https://www.uniprot.org/uniprot/NOTUM_HUMAN NOTUM_HUMAN]] May deacetylate GlcNAc residues on cell surface glycans.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The carboxylesterase Notum hydrolyzes a palmitoleate moiety from Wingless/Integrated(Wnt) ligands and deactivates Wnt signaling. Notum inhibitors can restore Wnt signaling which may be of therapeutic benefit for pathologies such as osteoporosis and Alzheimer's disease. We report the identification of a novel class of covalent Notum inhibitors, 4-(indolin-1-yl)-4-oxobutanoate esters. High-resolution crystal structures of the Notum inhibitor complexes reveal a common covalent adduct formed between the nucleophile serine-232 and hydrolyzed butyric esters. The covalent interaction in solution was confirmed by mass spectrometry analysis. Inhibitory potencies vary depending on the warheads used. Mechanistically, the resulting acyl-enzyme intermediate carbonyl atom is positioned at an unfavorable angle for the approach of the active site water, which, combined with strong hydrophobic interactions with the enzyme pocket residues, hinders the intermediate from being further processed and results in covalent inhibition. These insights into Notum catalytic inhibition may guide development of more potent Notum inhibitors.
Structural Insights into Notum Covalent Inhibition.,Zhao Y, Svensson F, Steadman D, Frew S, Monaghan A, Bictash M, Moreira T, Chalk R, Lu W, Fish PV, Jones EY J Med Chem. 2021 Jul 22. doi: 10.1021/acs.jmedchem.1c00701. PMID:34292747<ref>PMID:34292747</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7arg" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Jones EY]]
[[Category: Jones, E Y]]
[[Category: Zhao Y]]
[[Category: Zhao, Y]]
[[Category: Notum inhibitor]]
[[Category: Signaling protein]]

Revision as of 09:28, 25 August 2021

Notum in complex with ARUK3002704Notum in complex with ARUK3002704

Structural highlights

7arg is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:, , , ,
Gene:NOTUM, OK/SW-CL.30 (HUMAN)
Activity:[Wnt_protein_O-palmitoleoyl-L-serine_hydrolase [Wnt protein] O-palmitoleoyl-L-serine hydrolase], with EC number 3.1.1.98
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[NOTUM_HUMAN] May deacetylate GlcNAc residues on cell surface glycans.

Publication Abstract from PubMed

The carboxylesterase Notum hydrolyzes a palmitoleate moiety from Wingless/Integrated(Wnt) ligands and deactivates Wnt signaling. Notum inhibitors can restore Wnt signaling which may be of therapeutic benefit for pathologies such as osteoporosis and Alzheimer's disease. We report the identification of a novel class of covalent Notum inhibitors, 4-(indolin-1-yl)-4-oxobutanoate esters. High-resolution crystal structures of the Notum inhibitor complexes reveal a common covalent adduct formed between the nucleophile serine-232 and hydrolyzed butyric esters. The covalent interaction in solution was confirmed by mass spectrometry analysis. Inhibitory potencies vary depending on the warheads used. Mechanistically, the resulting acyl-enzyme intermediate carbonyl atom is positioned at an unfavorable angle for the approach of the active site water, which, combined with strong hydrophobic interactions with the enzyme pocket residues, hinders the intermediate from being further processed and results in covalent inhibition. These insights into Notum catalytic inhibition may guide development of more potent Notum inhibitors.

Structural Insights into Notum Covalent Inhibition.,Zhao Y, Svensson F, Steadman D, Frew S, Monaghan A, Bictash M, Moreira T, Chalk R, Lu W, Fish PV, Jones EY J Med Chem. 2021 Jul 22. doi: 10.1021/acs.jmedchem.1c00701. PMID:34292747[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. ↑ Zhao Y, Svensson F, Steadman D, Frew S, Monaghan A, Bictash M, Moreira T, Chalk R, Lu W, Fish PV, Jones EY. Structural Insights into Notum Covalent Inhibition. J Med Chem. 2021 Jul 22. doi: 10.1021/acs.jmedchem.1c00701. PMID:34292747 doi:http://dx.doi.org/10.1021/acs.jmedchem.1c00701

7arg, resolution 1.24Å

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