2kr4
From Proteopedia
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- | [[ | + | ==U-box domain of the E3 Ubiquitin Ligase E4B== |
+ | <StructureSection load='2kr4' size='340' side='right' caption='[[2kr4]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | ||
+ | == Structural highlights == | ||
+ | <table><tr><td colspan='2'>[[2kr4]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KR4 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2KR4 FirstGlance]. <br> | ||
+ | </td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Ube4b, Ufd2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])</td></tr> | ||
+ | <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=2kr4 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2kr4 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2kr4 RCSB], [http://www.ebi.ac.uk/pdbsum/2kr4 PDBsum]</span></td></tr> | ||
+ | <table> | ||
+ | == 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/kr/2kr4_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/chain_selection.php?pdb_ID=2ata ConSurf]. | ||
+ | <div style="clear:both"></div> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Substantial evidence has accumulated indicating a significant role for oligomerization in the function of E3 ubiquitin ligases. Among the many characterized E3 ligases, the yeast U-box protein Ufd2 and its mammalian homologue E4B appear to be unique in functioning as monomers. An E4B U-box domain construct (E4BU) has been subcloned, overexpressed in Escherichia coli, and purified, which enabled determination of a high-resolution NMR solution structure and detailed biophysical analysis. E4BU is a stable monomeric protein that folds into the same structure observed for other structurally characterized U-box domain homodimers. Multiple sequence alignment combined with comparative structural analysis reveals substitutions in the sequence that inhibit dimerization. The interaction between E4BU and the E2 conjugating enzyme UbcH5c has been mapped using NMR, and these data have been used to generate a structural model for the complex. The E2 binding site is found to be similar to that observed for dimeric U-box and RING domain E3 ligases. Despite the inability to dimerize, E4BU was found to be active in a standard autoubiquitination assay. The structure of E4BU and its ability to function as a monomer are discussed in light of the ubiquitous observation of U-box and RING domain oligomerization. | ||
- | + | Structural and functional characterization of the monomeric U-box domain from E4B.,Nordquist KA, Dimitrova YN, Brzovic PS, Ridenour WB, Munro KA, Soss SE, Caprioli RM, Klevit RE, Chazin WJ Biochemistry. 2010 Jan 19;49(2):347-55. PMID:20017557<ref>PMID:20017557</ref> | |
- | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
- | + | </div> | |
- | + | == References == | |
- | + | <references/> | |
- | + | __TOC__ | |
- | + | </StructureSection> | |
- | + | ||
- | == | + | |
- | < | + | |
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Chazin, W.]] | [[Category: Chazin, W.]] |
Revision as of 10:21, 30 September 2014
U-box domain of the E3 Ubiquitin Ligase E4B
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Categories: Mus musculus | Chazin, W. | Nordquist, K. | Soss, S. | E3 ligase | E4b | Ligase | Ring | U-box | Ubiquitin | Ubl conjugation pathway | Ufd2