1yx5

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[[Image:1yx5.png|left|200px]]
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==Solution Structure of S5a UIM-1/Ubiquitin Complex==
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<StructureSection load='1yx5' size='340' side='right' caption='[[1yx5]], [[NMR_Ensembles_of_Models | 18 NMR models]]' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1yx5]] is a 2 chain structure with sequence from [http://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 [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1YX5 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1d3z|1d3z]], [[1tbe|1tbe]], [[1yx4|1yx4]], [[1yx6|1yx6]]</td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PSMD4, MCB1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1yx5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1yx5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1yx5 RCSB], [http://www.ebi.ac.uk/pdbsum/1yx5 PDBsum]</span></td></tr>
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<table>
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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/yx/1yx5_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/chain_selection.php?pdb_ID=2ata 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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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.
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{{STRUCTURE_1yx5| PDB=1yx5 | SCENE= }}
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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>
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===Solution Structure of S5a UIM-1/Ubiquitin Complex===
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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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{{ABSTRACT_PUBMED_15826667}}
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==About this Structure==
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[[1yx5]] is a 2 chain structure with sequence from [http://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].
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==See Also==
==See Also==
*[[Proteasome|Proteasome]]
*[[Proteasome|Proteasome]]
*[[Ubiquitin|Ubiquitin]]
*[[Ubiquitin|Ubiquitin]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:015826667</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Walters, K J.]]
[[Category: Walters, K J.]]

Revision as of 23:43, 28 September 2014

Solution Structure of S5a UIM-1/Ubiquitin Complex

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