View source for 5hjb


==AF9 YEATS in complex with histone H3 Crotonylation at K9==
<StructureSection load='5hjb' size='340' side='right'caption='[[5hjb]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5hjb]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5HJB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5HJB 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]] 2.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=KCR:N-6-CROTONYL-L-LYSINE'>KCR</scene></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=5hjb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5hjb OCA], [https://pdbe.org/5hjb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5hjb RCSB], [https://www.ebi.ac.uk/pdbsum/5hjb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5hjb ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/AF9_HUMAN AF9_HUMAN] A chromosomal aberration involving MLLT3 is associated with acute leukemias. Translocation t(9;11)(p22;q23) with KMT2A/MLL1. The result is a rogue activator protein.
== Function ==
[https://www.uniprot.org/uniprot/AF9_HUMAN AF9_HUMAN] Component of the super elongation complex (SEC), a complex required to increase the catalytic rate of RNA polymerase II transcription by suppressing transient pausing by the polymerase at multiple sites along the DNA.<ref>PMID:20159561</ref> <ref>PMID:20471948</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Recognition of histone covalent modifications by chromatin-binding protein modules ("readers") constitutes a major mechanism for epigenetic regulation, typified by bromodomains that bind acetyllysine. Non-acetyl histone lysine acylations (e.g., crotonylation, butyrylation, propionylation) have been recently identified, but readers that prefer these acylations have not been characterized. Here we report that the AF9 YEATS domain displays selectively higher binding affinity for crotonyllysine over acetyllysine. Structural studies revealed an extended aromatic sandwiching cage with crotonyl specificity arising from pi-aromatic and hydrophobic interactions between crotonyl and aromatic rings. These features are conserved among the YEATS, but not the bromodomains. Using a cell-based model, we showed that AF9 co-localizes with crotonylated histone H3 and positively regulates gene expression in a YEATS domain-dependent manner. Our studies define the evolutionarily conserved YEATS domain as a family of crotonyllysine readers and specifically demonstrate that the YEATS domain of AF9 directly links histone crotonylation to active transcription.

Molecular Coupling of Histone Crotonylation and Active Transcription by AF9 YEATS Domain.,Li Y, Sabari BR, Panchenko T, Wen H, Zhao D, Guan H, Wan L, Huang H, Tang Z, Zhao Y, Roeder RG, Shi X, Allis CD, Li H Mol Cell. 2016 Apr 21;62(2):181-93. doi: 10.1016/j.molcel.2016.03.028. PMID:27105114<ref>PMID:27105114</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5hjb" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Guan HP]]
[[Category: Li HT]]
[[Category: Li YY]]
[[Category: Zhao D]]