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==Crystal structure of | ==Crystal structure of USP7 in complex with the non-covalent inhibitor, FT671== | ||
<StructureSection load='5nge' size='340' side='right' caption='[[5nge]], [[Resolution|resolution]] 2.35Å' scene=''> | <StructureSection load='5nge' size='340' side='right'caption='[[5nge]], [[Resolution|resolution]] 2.35Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5nge]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5NGE OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[5nge]] is a 2 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=5NGE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5NGE FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=8WK:5-[[1-[(3~{S})-4,4-bis(fluoranyl)-3-(3-fluoranylpyrazol-1-yl)butanoyl]-4-oxidanyl-piperidin-4-yl]methyl]-1-(4-fluorophenyl)pyrazolo[3,4-d]pyrimidin-4-one'>8WK</scene | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.35Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=8WK:5-[[1-[(3~{S})-4,4-bis(fluoranyl)-3-(3-fluoranylpyrazol-1-yl)butanoyl]-4-oxidanyl-piperidin-4-yl]methyl]-1-(4-fluorophenyl)pyrazolo[3,4-d]pyrimidin-4-one'>8WK</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5nge FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5nge OCA], [https://pdbe.org/5nge PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5nge RCSB], [https://www.ebi.ac.uk/pdbsum/5nge PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5nge ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/UBP7_HUMAN UBP7_HUMAN] Hydrolase that deubiquitinates target proteins such as FOXO4, p53/TP53, MDM2, ERCC6, DNMT1, UHRF1, PTEN and DAXX. Together with DAXX, prevents MDM2 self-ubiquitination and enhances the E3 ligase activity of MDM2 towards p53/TP53, thereby promoting p53/TP53 ubiquitination and proteasomal degradation. Deubiquitinates p53/TP53 and MDM2 and strongly stabilizes p53/TP53 even in the presence of excess MDM2, and also induces p53/TP53-dependent cell growth repression and apoptosis. Deubiquitination of FOXO4 in presence of hydrogen peroxide is not dependent on p53/TP53 and inhibits FOXO4-induced transcriptional activity. In association with DAXX, is involved in the deubiquitination and translocation of PTEN from the nucleus to the cytoplasm, both processes that are counteracted by PML. Involved in cell proliferation during early embryonic development. Involved in transcription-coupled nucleotide excision repair (TC-NER) in response to UV damage: recruited to DNA damage sites following interaction with KIAA1530/UVSSA and promotes deubiquitination of ERCC6, preventing UV-induced degradation of ERCC6. Contributes to the overall stabilization and trans-activation capability of the herpesvirus 1 trans-acting transcriptional protein ICP0/VMW110 during HSV-1 infection. Involved in maintenance of DNA methylation via its interaction with UHRF1 and DNMT1: acts by mediating deubiquitination of UHRF1 and DNMT1, preventing their degradation and promoting DNA methylation by DNMT1. Exhibits a preference towards 'Lys-48'-linked Ubiquitin chains.<ref>PMID:11923872</ref> <ref>PMID:14506283</ref> <ref>PMID:15053880</ref> <ref>PMID:16160161</ref> <ref>PMID:16964248</ref> <ref>PMID:18716620</ref> <ref>PMID:18590780</ref> <ref>PMID:20153724</ref> <ref>PMID:21745816</ref> <ref>PMID:22411829</ref> <ref>PMID:22689415</ref> <ref>PMID:22466611</ref> <ref>PMID:22466612</ref> | ||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Ubiquitination controls the stability of most cellular proteins, and its deregulation contributes to human diseases including cancer. Deubiquitinases remove ubiquitin from proteins, and their inhibition can induce the degradation of selected proteins, potentially including otherwise 'undruggable' targets. For example, the inhibition of ubiquitin-specific protease 7 (USP7) results in the degradation of the oncogenic E3 ligase MDM2, and leads to re-activation of the tumour suppressor p53 in various cancers. Here we report that two compounds, FT671 and FT827, inhibit USP7 with high affinity and specificity in vitro and within human cells. Co-crystal structures reveal that both compounds target a dynamic pocket near the catalytic centre of the auto-inhibited apo form of USP7, which differs from other USP deubiquitinases. Consistent with USP7 target engagement in cells, FT671 destabilizes USP7 substrates including MDM2, increases levels of p53, and results in the transcription of p53 target genes, induction of the tumour suppressor p21, and inhibition of tumour growth in mice. | |||
Molecular basis of USP7 inhibition by selective small-molecule inhibitors.,Turnbull AP, Ioannidis S, Krajewski WW, Pinto-Fernandez A, Heride C, Martin ACL, Tonkin LM, Townsend EC, Buker SM, Lancia DR, Caravella JA, Toms AV, Charlton TM, Lahdenranta J, Wilker E, Follows BC, Evans NJ, Stead L, Alli C, Zarayskiy VV, Talbot AC, Buckmelter AJ, Wang M, McKinnon CL, Saab F, McGouran JF, Century H, Gersch M, Pittman MS, Marshall CG, Raynham TM, Simcox M, Stewart LMD, McLoughlin SB, Escobedo JA, Bair KW, Dinsmore CJ, Hammonds TR, Kim S, Urbe S, Clague MJ, Kessler BM, Komander D Nature. 2017 Oct 26;550(7677):481-486. doi: 10.1038/nature24451. Epub 2017 Oct, 18. PMID:29045389<ref>PMID:29045389</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 5nge" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Thioesterase 3D structures|Thioesterase 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Homo sapiens]] | ||
[[Category: Ioannidis | [[Category: Large Structures]] | ||
[[Category: Kessler | [[Category: Ioannidis S]] | ||
[[Category: Komander | [[Category: Kessler BM]] | ||
[[Category: Krajewski | [[Category: Komander D]] | ||
[[Category: Turnbull | [[Category: Krajewski WW]] | ||
[[Category: Turnbull AP]] | |||