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3m99

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{{Seed}}
 
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[[Image:3m99.png|left|200px]]
 
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==Structure of the Ubp8-Sgf11-Sgf73-Sus1 SAGA DUB module==
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The line below this paragraph, containing "STRUCTURE_3m99", creates the "Structure Box" on the page.
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<StructureSection load='3m99' size='340' side='right'caption='[[3m99]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3m99]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3M99 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3M99 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]] 2.7&#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=ZN:ZINC+ION'>ZN</scene></td></tr>
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{{STRUCTURE_3m99| PDB=3m99 | SCENE= }}
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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=3m99 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3m99 OCA], [https://pdbe.org/3m99 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3m99 RCSB], [https://www.ebi.ac.uk/pdbsum/3m99 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3m99 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/UBP8_YEAST UBP8_YEAST] Functions as histone deubiquitinating component of the transcription regulatory histone acetylation (HAT) complexes SAGA and SLIK. SAGA is involved in RNA polymerase II-dependent transcriptional regulation of approximately 10% of yeast genes. At the promoters, SAGA is required for recruitment of the basal transcription machinery. It influences RNA polymerase II transcriptional activity through different activities such as TBP interaction (SPT3, SPT8 and SPT20) and promoter selectivity, interaction with transcription activators (GCN5, ADA2, ADA3 and TRA1), and chromatin modification through histone acetylation (GCN5) and deubiquitination (UBP8). SAGA acetylates nucleosomal histone H3 to some extent (to form H3K9ac, H3K14ac, H3K18ac and H3K23ac). SAGA interacts with DNA via upstream activating sequences (UASs). SLIK is proposed to have partly overlapping functions with SAGA. It preferentially acetylates methylated histone H3, at least after activation at the GAL1-10 locus. Together with SGF11, is required for histone H2B deubiquitination.<ref>PMID:10026213</ref> <ref>PMID:14660634</ref> <ref>PMID:15657441</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/m9/3m99_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=3m99 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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Deubiquitinating enzymes (DUBs) regulate diverse cellular functions by cleaving ubiquitin from specific protein substrates. How their activities are modulated in various cellular contexts remains poorly understood. The yeast deubiquitinase Ubp8 protein is recruited and activated by the SAGA complex and, together with Sgf11, Sus1, and Sgf73, forms a DUB module responsible for deubiquitinating histone H2B during gene expression. Here, we report the crystal structure of the complete SAGA DUB module, which features two functional lobes structurally coupled by Sgf73. In the "assembly lobe," a long Sgf11 N-terminal helix is clamped onto the Ubp8 ZnF-UBP domain by Sus1. In the "catalytic lobe," an Sgf11 C-terminal zinc-finger domain binds to the Ubp8 catalytic domain next to its active site. Our structural and functional analyses reveal a central role of Sgf11 and Sgf73 in activating Ubp8 for deubiquitinating histone H2B and demonstrate how a DUB can be allosterically regulated by its nonsubstrate partners.
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===Structure of the Ubp8-Sgf11-Sgf73-Sus1 SAGA DUB module===
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Structural basis for assembly and activation of the heterotetrameric SAGA histone H2B deubiquitinase module.,Kohler A, Zimmerman E, Schneider M, Hurt E, Zheng N Cell. 2010 May 14;141(4):606-17. Epub 2010 Apr 29. PMID:20434206<ref>PMID:20434206</ref>
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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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<div class="pdbe-citations 3m99" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_20434206}}, adds the Publication Abstract to the page
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*[[SAGA-associated factor|SAGA-associated factor]]
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(as it appears on PubMed at http://www.pubmed.gov), where 20434206 is the PubMed ID number.
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*[[Thioesterase 3D structures|Thioesterase 3D structures]]
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== References ==
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{{ABSTRACT_PUBMED_20434206}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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3M99 is a 4 chains structure with sequences from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3M99 OCA].
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[[Category: Large Structures]]
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==Reference==
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<ref group="xtra">PMID:20434206</ref><references group="xtra"/>
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[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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[[Category: Ubiquitin thiolesterase]]
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[[Category: Hurt E]]
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[[Category: Hurt, E.]]
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[[Category: Kohler A]]
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[[Category: Kohler, A.]]
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[[Category: Schneider M]]
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[[Category: Schneider, M.]]
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[[Category: Zheng N]]
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[[Category: Zheng, N.]]
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[[Category: Zimmerman E]]
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[[Category: Zimmerman, E.]]
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[[Category: Activator]]
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[[Category: Chromatin regulator]]
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[[Category: Deubiquitination]]
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[[Category: Metal-binding]]
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[[Category: Mrna transport]]
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[[Category: Nuclear pore complex]]
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[[Category: Nucleus]]
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[[Category: Protein modification]]
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[[Category: Transcription]]
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[[Category: Transcription regulation]]
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[[Category: Ubiquitination]]
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[[Category: Zinc finger]]
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[[Category: Zinc-finger]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 7 08:04:04 2010''
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Current revision

Structure of the Ubp8-Sgf11-Sgf73-Sus1 SAGA DUB module

PDB ID 3m99

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