9eqh: Difference between revisions
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==WWP2 WW2-2,3-linker-HECT (WWP2-LH)== | |||
<StructureSection load='9eqh' size='340' side='right'caption='[[9eqh]], [[Resolution|resolution]] 2.05Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[9eqh]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9EQH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9EQH 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]] 2.05Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</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=9eqh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9eqh OCA], [https://pdbe.org/9eqh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9eqh RCSB], [https://www.ebi.ac.uk/pdbsum/9eqh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9eqh ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/WWP2_HUMAN WWP2_HUMAN] E3 ubiquitin-protein ligase which accepts ubiquitin from an E2 ubiquitin-conjugating enzyme in the form of a thioester and then directly transfers the ubiquitin to targeted substrates. Polyubiquitinates POU5F1 by 'Lys-63'-linked conjugation and promotes it to proteasomal degradation; in embryonic stem cells (ESCs) the ubiquitination is proposed to regulate POU5F1 protein level. Ubiquitinates EGR2 and promotes it to proteasomal degradation; in T-cells the ubiquitination inhibits activation-induced cell death. Ubiquitinates SLC11A2; the ubiquitination is enhanced by presence of NDFIP1 and NDFIP2. Ubiquitinates RPB1 and promotes it to proteasomal degradation.<ref>PMID:19274063</ref> <ref>PMID:19651900</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The HECT E3 ubiquitin ligases 1 (WWP1) and 2 (WWP2) are responsible for the ubiquitin-mediated degradation of key tumour suppressor proteins and are dysregulated in various cancers and diseases. Here we expand their limited inhibitor space by identification of NSC-217913 displaying a WWP1 IC(50) of 158.3 microM (95% CI = 128.7, 195.1 microM). A structure-activity relationship by synthesis approach aided by molecular docking led to compound 11 which displayed increased potency with an IC(50) of 32.7 microM (95% CI = 24.6, 44.3 microM) for WWP1 and 269.2 microM (95% CI = 209.4, 347.9 microM) for WWP2. Molecular docking yielded active site-bound poses suggesting that the heterocyclic imidazo[4,5-b]pyrazine scaffold undertakes a pi-stacking interaction with the phenolic group of tyrosine, and the ethyl ester enables strong ion-dipole interactions. Given the therapeutic potential of WWP1 and WWP2, we propose that compound 11 may provide a basis for future lead compound development. | |||
Expanding the inhibitor space of the WWP1 and WWP2 HECT E3 ligases.,Dudey AP, Rigby JM, Hughes GR, Stephenson GR, Storr TE, Chantry A, Hemmings AM J Enzyme Inhib Med Chem. 2024 Dec;39(1):2394895. doi: , 10.1080/14756366.2024.2394895. Epub 2024 Sep 2. PMID:39223706<ref>PMID:39223706</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: Dudey | <div class="pdbe-citations 9eqh" style="background-color:#fffaf0;"></div> | ||
[[Category: Hemmings | == References == | ||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Dudey AP]] | |||
[[Category: Hemmings AM]] | |||