1yx5
From Proteopedia
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- | [[Image:1yx5.png|left|200px]] | ||
- | + | ==Solution Structure of S5a UIM-1/Ubiquitin Complex== | |
+ | <StructureSection load='1yx5' size='340' side='right'caption='[[1yx5]]' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[1yx5]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YX5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1YX5 FirstGlance]. <br> | ||
+ | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1yx5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1yx5 OCA], [https://pdbe.org/1yx5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1yx5 RCSB], [https://www.ebi.ac.uk/pdbsum/1yx5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1yx5 ProSAT]</span></td></tr> | ||
+ | </table> | ||
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/PSMD4_HUMAN PSMD4_HUMAN] Binds and presumably selects ubiquitin-conjugates for destruction. Displays selectivity for longer polyubiquitin chains. Modulates intestinal fluid secretion. | ||
+ | == Evolutionary Conservation == | ||
+ | [[Image:Consurf_key_small.gif|200px|right]] | ||
+ | Check<jmol> | ||
+ | <jmolCheckbox> | ||
+ | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/yx/1yx5_consurf.spt"</scriptWhenChecked> | ||
+ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
+ | <text>to colour the structure by Evolutionary Conservation</text> | ||
+ | </jmolCheckbox> | ||
+ | </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=1yx5 ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Ubiquitin is a key regulatory molecule in diverse cellular events. How cells determine the outcome of ubiquitylation remains unclear; however, a likely determinant is the specificity of ubiquitin receptor proteins for polyubiquitin chains of certain length and linkage. Proteasome subunit S5a contains two ubiquitin-interacting motifs (UIMs) through which it recruits ubiquitylated substrates to the proteasome for their degradation. Here, we report the structure of S5a (196-306) alone and complexed with two monoubiquitin molecules. This construct contains the two UIMs of S5a and we reveal their different ubiquitin-binding mechanisms and provide a rationale for their unique specificities for different ubiquitin-like domains. Furthermore, we provide direct evidence that S5a (196-306) binds either K63-linked or K48-linked polyubiquitin, and in both cases prefers longer chains. On the basis of these results we present a model for how S5a and other ubiquitin-binding proteins recognize polyubiquitin. | ||
- | + | Structure of S5a bound to monoubiquitin provides a model for polyubiquitin recognition.,Wang Q, Young P, Walters KJ J Mol Biol. 2005 May 6;348(3):727-39. PMID:15826667<ref>PMID:15826667</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
- | + | <div class="pdbe-citations 1yx5" style="background-color:#fffaf0;"></div> | |
- | + | ||
==See Also== | ==See Also== | ||
- | *[[Proteasome|Proteasome]] | + | *[[Proteasome 3D structures|Proteasome 3D structures]] |
- | *[[ | + | *[[3D structures of ubiquitin|3D structures of ubiquitin]] |
- | + | == References == | |
- | == | + | <references/> |
- | < | + | __TOC__ |
+ | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
- | [[Category: | + | [[Category: Large Structures]] |
- | [[Category: | + | [[Category: Walters KJ]] |
- | [[Category: | + | [[Category: Wang Q]] |
- | [[Category: | + | [[Category: Young P]] |
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Current revision
Solution Structure of S5a UIM-1/Ubiquitin Complex
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