View source for 5iok


==Crystal structure of Taf14 YEATS domain in complex with histone H3K9cr==
<StructureSection load='5iok' size='340' side='right'caption='[[5iok]], [[Resolution|resolution]] 2.22&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5iok]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae] and [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IOK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5IOK 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]] 2.22&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=KCR:N-6-CROTONYL-L-LYSINE'>KCR</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</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=5iok FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5iok OCA], [https://pdbe.org/5iok PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5iok RCSB], [https://www.ebi.ac.uk/pdbsum/5iok PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5iok ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TAF14_YEAST TAF14_YEAST] Functions as a component of the DNA-binding general transcription factor complex TFIID, the RNA polymerase II associated general transcription factor complex TFIIF, and the chromatin-remodeling complex SWI/SNF. Binding of TFIID to a promoter (with or without TATA element) is the initial step in preinitiation complex (PIC) formation. TFIID plays a key role in the regulation of gene expression by RNA polymerase II through different activities such as transcription activator interaction, core promoter recognition and selectivity, TFIIA and TFIIB interaction, chromatin modification (histone acetylation by TAF1), facilitation of DNA opening and initiation of transcription. TFIIF is essential for the initiation of transcription by RNA polymerase II. TFIIF functions include the recruitment of RNA polymerase II to the promoter bound DNA-TBP-TFIIB complex, decreasing the affinity of RNA polymerase II for non-specific DNA, allowing for the subsequent recruitment of TFIIE and TFIIH, and facilitating RNA polymerase II elongation. The TAF14 subunit has stimulatory activity. Component of the SWI/SNF complex, an ATP-dependent chromatin-remodeling complex, is required for the positive and negative regulation of gene expression of a large number of genes. It changes chromatin structure by altering DNA-histone contacts within a nucleosome, leading eventually to a change in nucleosome position, thus facilitating or repressing binding of gene-specific transcription factors. Component of the histone acetyltransferase NuA3 complex, that acetylates Lys-14 of histone H3. Recruitment of NuA3 to nucleosomes requires methylated histone H3. In conjunction with the FACT complex, NuA3 may be involved in transcriptional regulation.<ref>PMID:9618449</ref> <ref>PMID:10788514</ref> <ref>PMID:12138208</ref> <ref>PMID:12516863</ref> <ref>PMID:12672490</ref> <ref>PMID:17157260</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The discovery of new histone modifications is unfolding at startling rates; however, the identification of effectors capable of interpreting these modifications has lagged behind. Here we report the YEATS domain as an effective reader of histone lysine crotonylation, an epigenetic signature associated with active transcription. We show that the Taf14 YEATS domain engages crotonyllysine via a unique pi-pi-pi-stacking mechanism and that other YEATS domains have crotonyllysine-binding activity.

The Taf14 YEATS domain is a reader of histone crotonylation.,Andrews FH, Shinsky SA, Shanle EK, Bridgers JB, Gest A, Tsun IK, Krajewski K, Shi X, Strahl BD, Kutateladze TG Nat Chem Biol. 2016 Apr 18. doi: 10.1038/nchembio.2065. PMID:27089029<ref>PMID:27089029</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5iok" style="background-color:#fffaf0;"></div>

==See Also==
*[[Transcription initiation factors 3D structures|Transcription initiation factors 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae S288C]]
[[Category: Andrews FH]]
[[Category: Kuateladze TG]]