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1p9c

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[[Image:1p9c.gif|left|200px]]
 
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==NMR solution structure of the C-terminal ubiquitin-interacting motif of the proteasome subunit S5a==
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The line below this paragraph, containing "STRUCTURE_1p9c", creates the "Structure Box" on the page.
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<StructureSection load='1p9c' size='340' side='right'caption='[[1p9c]]' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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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'>[[1p9c]] is a 1 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=1P9C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P9C FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1p9c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p9c OCA], [https://pdbe.org/1p9c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p9c RCSB], [https://www.ebi.ac.uk/pdbsum/1p9c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p9c ProSAT]</span></td></tr>
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{{STRUCTURE_1p9c| PDB=1p9c | SCENE= }}
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</table>
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== Function ==
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[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.
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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/p9/1p9c_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=1p9c 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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HHR23A, a protein implicated in nucleotide excision repair, belongs to a class of proteins containing both a ubiquitin-like (Ubl) domain and one or more ubiquitin-associated (UBA) domains, suggesting a role in the ubiquitin-proteasome pathway as well. The Ubl domain binds with high affinity to the second ubiquitin-interacting motif (UIM) of the S5a subunit of the proteasome. Here we present the solution structures of the HHR23A Ubl domain, the second UIM of S5a (UIM-2), and the Ubl:S5a-UIM-2 complex. The HHR23A Ubl domain is structurally similar to ubiquitin. The S5a UIM forms an alpha-helix with an unexpected hairpin loop that contributes to the binding interface with Ubl. The molecular determinants of the Ubl-proteasome interaction are revealed by analysis of the structures, chemical shift mapping, mutant binding studies and sequence conservation.
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'''NMR solution structure of the C-terminal ubiquitin-interacting motif of the proteasome subunit S5a'''
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Structural determinants for the binding of ubiquitin-like domains to the proteasome.,Mueller TD, Feigon J EMBO J. 2003 Sep 15;22(18):4634-45. PMID:12970176<ref>PMID:12970176</ref>
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==Overview==
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HHR23A, a protein implicated in nucleotide excision repair, belongs to a class of proteins containing both a ubiquitin-like (Ubl) domain and one or more ubiquitin-associated (UBA) domains, suggesting a role in the ubiquitin-proteasome pathway as well. The Ubl domain binds with high affinity to the second ubiquitin-interacting motif (UIM) of the S5a subunit of the proteasome. Here we present the solution structures of the HHR23A Ubl domain, the second UIM of S5a (UIM-2), and the Ubl:S5a-UIM-2 complex. The HHR23A Ubl domain is structurally similar to ubiquitin. The S5a UIM forms an alpha-helix with an unexpected hairpin loop that contributes to the binding interface with Ubl. The molecular determinants of the Ubl-proteasome interaction are revealed by analysis of the structures, chemical shift mapping, mutant binding studies and sequence conservation.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1P9C is a [[Single protein]] structure of 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=1P9C OCA].
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</div>
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<div class="pdbe-citations 1p9c" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Structural determinants for the binding of ubiquitin-like domains to the proteasome., Mueller TD, Feigon J, EMBO J. 2003 Sep 15;22(18):4634-45. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12970176 12970176]
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*[[Proteasome 3D structures|Proteasome 3D structures]]
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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: Single protein]]
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[[Category: Large Structures]]
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[[Category: Feigon, J.]]
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[[Category: Feigon J]]
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[[Category: Mueller, T D.]]
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[[Category: Mueller TD]]
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[[Category: Alpha helix]]
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[[Category: Hairpin loop]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:50:46 2008''
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Current revision

NMR solution structure of the C-terminal ubiquitin-interacting motif of the proteasome subunit S5a

PDB ID 1p9c

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