1p98
From Proteopedia
(Difference between revisions)
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==High-resolution NMR structure of the Ubl-domain of HHR23A== | ==High-resolution NMR structure of the Ubl-domain of HHR23A== | ||
| - | <StructureSection load='1p98' size='340' side='right'caption='[[1p98 | + | <StructureSection load='1p98' size='340' side='right'caption='[[1p98]]' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1p98]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/ | + | <table><tr><td colspan='2'>[[1p98]] 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=1P98 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P98 FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </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=1p98 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p98 OCA], [https://pdbe.org/1p98 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p98 RCSB], [https://www.ebi.ac.uk/pdbsum/1p98 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p98 ProSAT]</span></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=1p98 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p98 OCA], [https://pdbe.org/1p98 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p98 RCSB], [https://www.ebi.ac.uk/pdbsum/1p98 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p98 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| - | + | [https://www.uniprot.org/uniprot/RD23A_HUMAN RD23A_HUMAN] Multiubiquitin chain receptor involved in modulation of proteasomal degradation. Binds to 'Lys-48'-linked polyubiquitin chains in a length-dependent manner and with a lower affinity to 'Lys-63'-linked polyubiquitin chains. Proposed to be capable to bind simultaneously to the 26S proteasome and to polyubiquitinated substrates and to deliver ubiquitinated proteins to the proteasome.<ref>PMID:9372924</ref> <ref>PMID:14621999</ref> <ref>PMID:12643283</ref> <ref>PMID:15321727</ref> <ref>PMID:20614012</ref> Involved in nucleotide excision repair and is thought to be functional equivalent for RAD23B in global genome nucleotide excision repair (GG-NER) by association with XPC. In vitro, the XPC:RAD23A dimer has NER activity. Can stabilize XPC.<ref>PMID:9372924</ref> <ref>PMID:14621999</ref> <ref>PMID:12643283</ref> <ref>PMID:15321727</ref> <ref>PMID:20614012</ref> Involved in vpr-dependent replication of HIV-1 in non-proliferating cells and primary macrophages. Required for the association of HIV-1 vpr with the host proteasome.<ref>PMID:9372924</ref> <ref>PMID:14621999</ref> <ref>PMID:12643283</ref> <ref>PMID:15321727</ref> <ref>PMID:20614012</ref> | |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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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=1p98 ConSurf]. | </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=1p98 ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | 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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| - | 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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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1p98" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
| - | *[[UV excision repair protein|UV excision repair protein]] | + | *[[UV excision repair protein 3D structures|UV excision repair protein 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: | + | [[Category: Homo sapiens]] |
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: Feigon | + | [[Category: Feigon J]] |
| - | [[Category: Mueller | + | [[Category: Mueller TD]] |
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Revision as of 05:53, 17 April 2024
High-resolution NMR structure of the Ubl-domain of HHR23A
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