5jhp: Difference between revisions

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'''Unreleased structure'''


The entry 5jhp is ON HOLD  until Oct 18 2018
==Crystal structure of the rice Topless related protein 2 (TPR2) N-terminal topless domain (1-209) L179A and I195A mutant in complex with rice D53 repressor EAR peptide motif==
<StructureSection load='5jhp' size='340' side='right'caption='[[5jhp]], [[Resolution|resolution]] 3.15&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5jhp]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryza_sativa Oryza sativa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5JHP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5JHP FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.15&#8491;</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=5jhp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5jhp OCA], [https://pdbe.org/5jhp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5jhp RCSB], [https://www.ebi.ac.uk/pdbsum/5jhp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5jhp ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TPR1_ORYSJ TPR1_ORYSJ] Probable downstream regulator of strigolactones signaling.[UniProtKB:Q0J7U6]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
TOPLESS are tetrameric plant corepressors of the conserved Tup1/Groucho/TLE (transducin-like enhancer of split) family. We show that they interact through their TOPLESS domains (TPDs) with two functionally important ethylene response factor-associated amphiphilic repression (EAR) motifs of the rice strigolactone signaling repressor D53: the universally conserved EAR-3 and the monocot-specific EAR-2. We present the crystal structure of the monocot-specific EAR-2 peptide in complex with the TOPLESS-related protein 2 (TPR2) TPD, in which the EAR-2 motif binds the same TPD groove as jasmonate and auxin signaling repressors but makes additional contacts with a second TPD site to mediate TPD tetramer-tetramer interaction. We validated the functional relevance of the two TPD binding sites in reporter gene assays and in transgenic rice and demonstrate that EAR-2 binding induces TPD oligomerization. Moreover, we demonstrate that the TPD directly binds nucleosomes and the tails of histones H3 and H4. Higher-order assembly of TPD complexes induced by EAR-2 binding markedly stabilizes the nucleosome-TPD interaction. These results establish a new TPD-repressor binding mode that promotes TPD oligomerization and TPD-nucleosome interaction, thus illustrating the initial assembly of a repressor-corepressor-nucleosome complex.


Authors: Ke, J., Ma, H., Gu, X., Brunzelle, J.S., Xu, H.E., Melcher, K.
A D53 repression motif induces oligomerization of TOPLESS corepressors and promotes assembly of a corepressor-nucleosome complex.,Ma H, Duan J, Ke J, He Y, Gu X, Xu TH, Yu H, Wang Y, Brunzelle JS, Jiang Y, Rothbart SB, Xu HE, Li J, Melcher K Sci Adv. 2017 Jun 2;3(6):e1601217. doi: 10.1126/sciadv.1601217. eCollection 2017 , Jun. PMID:28630893<ref>PMID:28630893</ref>


Description: Crystal structure of the rice Topless related protein 2 (TPR2) N-terminal topless domain (1-209) L179A and I195A mutant in complex with rice D53 repressor EAR peptide motif
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Xu, H.E]]
<div class="pdbe-citations 5jhp" style="background-color:#fffaf0;"></div>
[[Category: Ma, H]]
== References ==
[[Category: Melcher, K]]
<references/>
[[Category: Brunzelle, J.S]]
__TOC__
[[Category: Gu, X]]
</StructureSection>
[[Category: Ke, J]]
[[Category: Large Structures]]
[[Category: Oryza sativa]]
[[Category: Brunzelle JS]]
[[Category: Gu X]]
[[Category: Ke J]]
[[Category: Ma H]]
[[Category: Melcher K]]
[[Category: Xu HE]]
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