3i3t

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[[Image:3i3t.png|left|200px]]
 
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{{STRUCTURE_3i3t| PDB=3i3t | SCENE= }}
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==Crystal structure of covalent ubiquitin-USP21 complex==
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<StructureSection load='3i3t' size='340' side='right'caption='[[3i3t]], [[Resolution|resolution]] 2.59&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3i3t]] is a 8 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=3I3T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3I3T FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.59&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NEH:ETHANAMINE'>NEH</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3i3t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3i3t OCA], [https://pdbe.org/3i3t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3i3t RCSB], [https://www.ebi.ac.uk/pdbsum/3i3t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3i3t ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/UBP21_HUMAN UBP21_HUMAN] Deubiquitinates histone H2A, a specific tag for epigenetic transcriptional repression, thereby acting as a coactivator. Deubiquitination of histone H2A releaves the repression of di- and trimethylation of histone H3 at 'Lys-4', resulting in regulation of transcriptional initiation. Regulates gene expression via histone H2A deubiquitination (By similarity). Also capable of removing NEDD8 from NEDD8 conjugates but has no effect on Sentrin-1 conjugates.<ref>PMID:10799498</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/i3/3i3t_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3i3t ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The ubiquitin system regulates virtually all aspects of cellular function. We report a method to target the myriad enzymes that govern ubiquitination of protein substrates. We used massively diverse combinatorial libraries of ubiquitin variants to develop inhibitors of four deubiquitinases (DUBs) and analyzed the DUB-inhibitor complexes with crystallography. We extended the selection strategy to the ubiquitin conjugating (E2) and ubiquitin ligase (E3) enzymes and found that ubiquitin variants can also enhance enzyme activity. Last, we showed that ubiquitin variants can bind selectively to ubiquitin-binding domains. Ubiquitin variants exhibit selective function in cells and thus enable orthogonal modulation of specific enzymatic steps in the ubiquitin system.
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===Crystal structure of covalent ubiquitin-USP21 complex===
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A strategy for modulation of enzymes in the ubiquitin system.,Ernst A, Avvakumov G, Tong J, Fan Y, Zhao Y, Alberts P, Persaud A, Walker JR, Neculai AM, Neculai D, Vorobyov A, Garg P, Beatty L, Chan PK, Juang YC, Landry MC, Yeh C, Zeqiraj E, Karamboulas K, Allali-Hassani A, Vedadi M, Tyers M, Moffat J, Sicheri F, Pelletier L, Durocher D, Raught B, Rotin D, Yang J, Moran MF, Dhe-Paganon S, Sidhu SS Science. 2013 Feb 1;339(6119):590-5. doi: 10.1126/science.1230161. Epub 2013 Jan , 3. PMID:23287719<ref>PMID:23287719</ref>
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{{ABSTRACT_PUBMED_23287719}}
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==About this Structure==
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<div class="pdbe-citations 3i3t" style="background-color:#fffaf0;"></div>
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[[3i3t]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3I3T OCA].
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==See Also==
==See Also==
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*[[Ubiquitin|Ubiquitin]]
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*[[Thioesterase 3D structures|Thioesterase 3D structures]]
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*[[3D structures of ubiquitin|3D structures of ubiquitin]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Ubiquitin thiolesterase]]
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[[Category: Large Structures]]
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[[Category: Arrowsmith, C H.]]
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[[Category: Arrowsmith CH]]
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[[Category: Avvakumov, G V.]]
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[[Category: Avvakumov GV]]
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[[Category: Bochkarev, A.]]
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[[Category: Bochkarev A]]
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[[Category: Bountra, C.]]
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[[Category: Bountra C]]
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[[Category: Butler-Cole, C.]]
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[[Category: Butler-Cole C]]
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[[Category: Dhe-Paganon, S.]]
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[[Category: Dhe-Paganon S]]
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[[Category: Edwards, A M.]]
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[[Category: Edwards AM]]
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[[Category: Neculai, D.]]
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[[Category: Neculai D]]
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[[Category: SGC, Structural Genomics Consortium.]]
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[[Category: Walker JR]]
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[[Category: Walker, J R.]]
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[[Category: Weigelt J]]
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[[Category: Weigelt, J.]]
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[[Category: Xue S]]
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[[Category: Xue, S.]]
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[[Category: Activator]]
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[[Category: Chromatin regulator]]
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[[Category: Hydrolase]]
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[[Category: Isopeptide bond]]
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[[Category: Nucleus]]
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[[Category: Phosphoprotein]]
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[[Category: Protease]]
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[[Category: Sgc]]
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[[Category: Structural genomics consortium]]
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[[Category: Thiol protease]]
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[[Category: Transcription]]
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[[Category: Transcription regulation]]
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[[Category: Ubiquitin biology]]
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[[Category: Ubiquitin-specific protease activity]]
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[[Category: Ubl conjugation pathway]]
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Current revision

Crystal structure of covalent ubiquitin-USP21 complex

PDB ID 3i3t

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Proteopedia Page Contributors and Editors (what is this?)

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